pdgLive

ATLS

Scalar LQ. B( ${{\mathit e}}{{\mathit q}}$ ) = 1

$> 1560$

²³

ATLS

Scalar LQ. B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1

$>1000$

²⁴

ATLS

Scalar LQ. B( ${{\mathit t}}{{\mathit \nu}}$ ) = 1

$>1030$

²⁵

ATLS

Scalar LQ. B( ${{\mathit b}}{{\mathit \tau}}$ ) = 1

$>970$

²⁶

ATLS

Scalar LQ. B( ${{\mathit b}}{{\mathit \nu}}$ ) = 1

$>920$

²⁷

ATLS

Scalar LQ. B( ${{\mathit t}}{{\mathit \tau}}$ ) = 1

$> 1530$

²⁸

CMS

Scalar LQ. B( ${{\mathit \mu}}{{\mathit q}}$ )+B( ${{\mathit \nu}}{{\mathit q}}$ ) = 1

$> 1435$

²⁹

CMS

Scalar LQ. B( ${{\mathit e}}{{\mathit q}}$ )+B( ${{\mathit \nu}}{{\mathit q}}$ ) = 1

$> 1020$

³⁰

CMS

Scalar LQ. B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1

$\text{none 300 - 900}$

³¹

CMS

Scalar LQ. B( ${{\mathit \tau}}{{\mathit t}}$ ) = 1

$> 1420$

³²

CMS

Scalar LQ. B( ${{\mathit \mu}}{{\mathit t}}$ ) = 1

$> 1190$

³³

CMS

Vector LQ. ${{\mathit \mu}}{{\mathit t}}$ , ${{\mathit \tau}}{{\mathit t}}$ , ${{\mathit \nu}}{{\mathit b}}$

$> 1100$

³⁴

CMS

Scalar LQ. B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1

$> 980$

³⁵

CMS

Scalar LQ. B( ${{\mathit \nu}}{{\mathit q}}$ ) = 1 with ${\mathit {\mathit q}}$ = ${\mathit {\mathit u}},{\mathit {\mathit d}},{\mathit {\mathit s}},{\mathit {\mathit c}}$

$> 1020$

³⁶

CMS

Scalar LQ. B( ${{\mathit \nu}}{{\mathit t}}$ ) = 1

$>1810$

³⁷

CMS

Vector LQ. $\kappa $=1. LQ $\rightarrow$ ${{\mathit b}}{{\mathit \nu}}$

$>1790$

³⁸

CMS

Vector LQ. $\kappa $=1. LQ $\rightarrow$ ${{\mathit q}}{{\mathit \nu}}$ with ${\mathit {\mathit q}}$ = ${\mathit {\mathit u}},{\mathit {\mathit d}},{\mathit {\mathit s}},{\mathit {\mathit c}}$

$>1780$

³⁹

CMS

Vector LQ. $\kappa $=1. LQ $\rightarrow$ ${{\mathit t}}{{\mathit \nu}}$

$>740$

⁴⁰

2017

CMS

Scalar LQ. B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1

$> 850$

⁴¹

2017

CMS

Scalar LQ. B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1

$> 1050$

⁴²

ATLS

Scalar LQ. B( ${{\mathit e}}{{\mathit q}}$ ) = 1

$> 1000$

⁴³

ATLS

Scalar LQ. B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1

$> 625$

⁴⁴

ATLS

Scalar LQ. B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1

$\text{none 200 - 640}$

⁴⁵

ATLS

Scalar LQ. B( ${{\mathit \nu}}{{\mathit t}}$ ) = 1

$> 1010$

⁴⁶

CMS

Scalar LQ. B( ${{\mathit e}}{{\mathit q}}$ ) = 1

$> 1080$

⁴⁷

CMS

Scalar LQ. B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1

$> 685$

⁴⁸

2015

CMS

Scalar LQ. B( ${{\mathit \tau}}{{\mathit t}}$ ) = 1

$> 740$

⁴⁹

2014

CMS

Scalar LQ. B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1

• • We do not use the following data for averages, fits, limits, etc. • •

⁵⁰

CMS

Scalar LQ ( $\rightarrow$ ${{\mathit \mu}}{{\mathit q}}$ ) LQ ( $\rightarrow$ ${{\mathit X}}$ + DM)

$> 534$

⁵¹

2013

ATLS

Third generation

$> 525$

⁵²

2013

CMS

Third generation

$> 660$

⁵³

ATLS

First generation

$> 685$

⁵⁴

ATLS

Second generation

$> 830$

⁵⁵

CMS

First generation

$> 840$

⁵⁶

CMS

Second generation

$> 450$

⁵⁷

CMS

Third generation

$> 376$

⁵⁸

ATLS

Superseded by AAD 2012H

$> 422$

⁵⁹

ATLS

Superseded by AAD 2012O

$> 326$

⁶⁰

First generation

$> 339$

⁶¹

CMS

Superseded by CHATRCHYAN 2012AG

$> 384$

⁶²

CMS

Superseded by CHATRCHYAN 2012AG

$> 394$

⁶³

CMS

Superseded by CHATRCHYAN 2012AG

$> 247$

⁶⁴

2010

Third generation

$> 316$

⁶⁵

2009

Second generation

$> 299$

⁶⁶

2009

Superseded by ABAZOV 2011V

⁶⁷

CDF

Third generation

$> 153$

⁶⁸

CDF

Third generation

$> 205$

⁶⁹

All generations

$> 210$

⁶⁸

Third generation

$> 229$

⁷⁰

2007

Superseded by ABAZOV 2010L

$> 251$

⁷¹

2006

Superseded by ABAZOV 2009

$> 136$

⁷²

2006

Superseded by ABAZOV 2008AD

$> 226$

⁷³

ABULENCIA

2006

CDF

Second generation

$> 256$

⁷⁴

2005

First generation

$>117$

⁶⁹

2005

CDF

First generation

$> 236$

⁷⁵

2005

CDF

First generation

$>99$

⁷⁶

2003

OPAL

First generation

$>100$

⁷⁶

2003

OPAL

Second generation

$>98$

⁷⁶

2003

OPAL

Third generation

$>98$

⁷⁷

2002

All generations

$>225$

⁷⁸

2001

First generation

$>85.8$

⁷⁹

OPAL

Superseded by ABBIENDI 2003R

$>85.5$

⁷⁹

OPAL

Superseded by ABBIENDI 2003R

$>82.7$

⁷⁹

OPAL

Superseded by ABBIENDI 2003R

$>200$

⁸⁰

Second generation

$>123$

⁸¹

AFFOLDER

CDF

Second generation

$> 148$

⁸²

AFFOLDER

CDF

Third generation

$>160$

⁸³

1999

Second generation

$>225$

⁸⁴

First generation

$>94$

⁸⁵

Third generation

$> 202$

⁸⁶

CDF

Second generation

$>242$

⁸⁷

GROSS-PILCHER

First generation

$>99$

⁸⁸

1997

CDF

Third generation

$>213$

⁸⁹

1997

CDF

First generation

$>45.5$

⁹⁰ ^{, 91}

ABREU

1993

DLPH

First + second generation

$>44.4$

⁹²

ADRIANI

1993

First generation

$>44.5$

⁹²

ADRIANI

1993

Second generation

$>45$

⁹²

DECAMP

1992

ALEP

Third generation

$\text{none 8.9 - 22.6}$

⁹³

KIM

1990

AMY

First generation

$\text{none 10.2 - 23.2}$

⁹³

KIM

1990

AMY

Second generation

$\text{none 5 - 20.8}$

⁹⁴

BARTEL

1987

JADE

$\text{none 7 - 20.5}$

⁹⁵

BEHREND

1986

CELL

¹	TUMASYAN 2022H search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit e}}$ . See their Fig. 27 for exclusion limit on leptoquark pair production cross section as function of ${{\mathit M}_{{LQ}}}$.

²	TUMASYAN 2022H search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \mu}}$ . See their Fig. 27 for exclusion limit on leptoquark pair production cross section as function of ${{\mathit M}_{{LQ}}}$.

³	TUMASYAN 2022H search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \tau}}$ . See their Fig. 27 for exclusion limit on leptoquark pair production cross section as function of ${{\mathit M}_{{LQ}}}$.

⁴	AAD 2021AG search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit e}}$ . See their Fig. 6 for exclusion limit on B( ${{\mathit t}}{{\mathit e}}$ ) as function of ${{\mathit M}_{{LQ}}}$.

⁵	AAD 2021AG search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \mu}}$ . See their Fig. 6 for exclusion limit on B( ${{\mathit t}}{{\mathit \mu}}$ ) as function of ${{\mathit M}_{{LQ}}}$.

⁶	AAD 2021AW search for scalar leptoquarks decaying to ${{\mathit b}}{{\mathit \tau}}$ . See their Fig. 9 for exclusion contour in B( ${{\mathit b}}{{\mathit \tau}}$ )$−{{\mathit M}_{{LQ}}}$ plane.

⁷	AAD 2021AW search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \tau}}$ . See their Fig. 9 for exclusion contour in B( ${{\mathit t}}{{\mathit \tau}}$ )$−{{\mathit M}_{{LQ}}}$ plane.

⁸	AAD 2021AW search for ${{\mathit \kappa}}$ = 1 vector leptoquarks decaying to ${{\mathit b}}{{\mathit \tau}}$ . See their Fig. 10 for exclusion contour in B( ${{\mathit b}}{{\mathit \tau}}$ )$−{{\mathit M}_{{LQ}}}$ plane and for limit on ${{\mathit \kappa}}$ = 0 vector leptoquarks.

⁹	AAD 2021S search for scalar leptoquarks decaying to ${{\mathit b}}{{\mathit \nu}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit above assumes B( ${{\mathit b}}{{\mathit \nu}}$ ) = 1. For B( ${{\mathit b}}{{\mathit \nu}}$ ) = 0.05, the limit becomes 400 GeV.

¹⁰

AAD 2021T search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \tau}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit above assumes B( ${{\mathit t}}{{\mathit \tau}}$ ) = 1. For B( ${{\mathit t}}{{\mathit \tau}}$ ) = 0.5, the limit becomes 1220 GeV. See their Fig. 15b for limits on B( ${{\mathit t}}{{\mathit \tau}}$ ) as a function of leptoquark mass.

¹¹	SIRUNYAN 2021J search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \tau}}$ and ${{\mathit b}}{{\mathit \nu}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.

¹²

SIRUNYAN 2021J search for vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ and ${{\mathit b}}{{\mathit \tau}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit quoted above assumes ${{\mathit \kappa}}$ = 1. If we assume ${{\mathit \kappa}}$ = 0, the limit becomes ${{\mathit M}_{{LQ}}}$ $>$ 1290 GeV.

¹³

AAD 2020AK search for scalar leptoquarks decaying to ${{\mathit e}}{{\mathit q}}$ , ${{\mathit e}}{{\mathit b}}$ , ${{\mathit e}}{{\mathit c}}$ , ${{\mathit \mu}}{{\mathit q}}$ , ${{\mathit \mu}}{{\mathit b}}$ , ${{\mathit \mu}}{{\mathit c}}$ . The quoted limit assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. See their Fig. 9 for limits on B( ${{\mathit e}}{{\mathit q}}$ ), B( ${{\mathit e}}{{\mathit b}}$ ), B( ${{\mathit e}}{{\mathit c}}$ ), B( ${{\mathit \mu}}{{\mathit q}}$ ), B( ${{\mathit \mu}}{{\mathit b}}$ ), B( ${{\mathit \mu}}{{\mathit c}}$ ) as a function of leptoquark mass.

¹⁴

AAD 2020AK search for scalar leptoquarks decaying to ${{\mathit e}}{{\mathit q}}$ , ${{\mathit e}}{{\mathit b}}$ , ${{\mathit e}}{{\mathit c}}$ , ${{\mathit \mu}}{{\mathit q}}$ , ${{\mathit \mu}}{{\mathit b}}$ , ${{\mathit \mu}}{{\mathit c}}$ . The quoted limit assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. See their Fig. 9 for limits on B( ${{\mathit e}}{{\mathit q}}$ ), B( ${{\mathit e}}{{\mathit b}}$ ), B( ${{\mathit e}}{{\mathit c}}$ ), B( ${{\mathit \mu}}{{\mathit q}}$ ), B( ${{\mathit \mu}}{{\mathit b}}$ ), B( ${{\mathit \mu}}{{\mathit c}}$ ) as a function of leptoquark mass.

¹⁵	AAD 2020S search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.

¹⁶

SIRUNYAN 2020A search for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ (${{\mathit q}}$ = ${{\mathit u}}$, ${{\mathit d}}$, ${{\mathit s}}$, ${{\mathit c}}$). The limit quoted above assumes scalar leptoquark with B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1.

¹⁷

¹⁸

¹⁹

SIRUNYAN 2020A search for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ (${{\mathit q}}$ = ${{\mathit u}}$, ${{\mathit d}}$, ${{\mathit s}}$, ${{\mathit c}}$). The limit quoted above assumes vector leptoquark with B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1 and ${{\mathit \kappa}}$ = 1. If we assume ${{\mathit \kappa}}$ = 0, the limit becomes ${{\mathit M}_{{LQ}}}$ $>$ 1560 GeV.

²⁰

SIRUNYAN 2020A search for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ (${{\mathit q}}$ = ${{\mathit u}}$, ${{\mathit d}}$, ${{\mathit s}}$, ${{\mathit c}}$). The limit quoted above assumes vector leptoquark with B( ${{\mathit \nu}}{{\mathit t}}$ ) = 1 and ${{\mathit \kappa}}$ = 1. If we assume ${{\mathit \kappa}}$ = 0, the limit becomes ${{\mathit M}_{{LQ}}}$ $>$ 1475 GeV.

²¹

SIRUNYAN 2020A search for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ (${{\mathit q}}$ = ${{\mathit u}}$, ${{\mathit d}}$, ${{\mathit s}}$, ${{\mathit c}}$). The limit quoted above assumes vector leptoquark with B( ${{\mathit \nu}}{{\mathit q}}$ ) = 1 and ${{\mathit \kappa}}$ = 1. If we assume ${{\mathit \kappa}}$ = 0, the limit becomes ${{\mathit M}_{{LQ}}}$ $>$ 1560 GeV.

²²	AABOUD 2019AX search for leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1.

²³	AABOUD 2019AX search for leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1.

²⁴	AABOUD 2019X search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.

²⁵	AABOUD 2019X search for scalar leptoquarks decaying to ${{\mathit b}}{{\mathit \tau}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.

²⁶	AABOUD 2019X search for scalar leptoquarks decaying to ${{\mathit b}}{{\mathit \nu}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.

²⁷	AABOUD 2019X search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \tau}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.

²⁸

SIRUNYAN 2019BI search for a pair of scalar leptoquarks decaying to ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ and to ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ final states in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. Limits are shown as a function of ${{\mathit \beta}}$ where ${{\mathit \beta}}$ is the branching fraction to a muon and a quark. For ${{\mathit \beta}}$ = 1.0 (0.5) LQ masses up to 1530 (1285) GeV are excluded. See Fig. 9 for exclusion limits in the plane of ${{\mathit \beta}}$ and LQ mass.

²⁹

SIRUNYAN 2019BJ search for a pair of scalar leptoquarks decaying to ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ final states in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. Limits are shown as a function of the branching fraction $\beta $ to an electron and a quark. For $\beta $ = 1.0 (0.5) LQ masses up to 1435 (1270) GeV are excluded. See Fig. 9 for exclusion limits in the plane of $\beta $ and LQ mass.

³⁰	SIRUNYAN 2019Y search for a pair of third generation scalar leptoquarks, each decaying to ${{\mathit \tau}}$ and a jet. Assuming B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1, leptoquark masses below 1.02 TeV are excluded.

³¹	SIRUNYAN 2018CZ search for scalar leptoquarks decaying to ${{\mathit \tau}}{{\mathit t}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit above assumes B( ${{\mathit \tau}}{{\mathit t}}$ ) = 1.

³²	SIRUNYAN 2018EC set limits for scalar and vector leptoquarks decaying to ${{\mathit \mu}}{{\mathit t}}$ , ${{\mathit \tau}}{{\mathit t}}$ , and ${{\mathit \nu}}{{\mathit b}}$ . The limit quoted above assumes scalar leptoquark with B( ${{\mathit \mu}}{{\mathit t}}$ ) = 1.

³³

SIRUNYAN 2018EC set limits for scalar and vector leptoquarks decaying to ${{\mathit \mu}}{{\mathit t}}$ , ${{\mathit \tau}}{{\mathit t}}$ , and ${{\mathit \nu}}{{\mathit b}}$ . The limit quoted above assumes vector leptoquark with all possible combinations of branching fractions to ${{\mathit \mu}}{{\mathit t}}$ , ${{\mathit \tau}}{{\mathit t}}$ , and ${{\mathit \nu}}{{\mathit b}}$ .

³⁴

SIRUNYAN 2018U set limits for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ . The limit quoted above assumes scalar leptoquark with B( ${{\mathit b}}{{\mathit \nu}}$ ) = 1. Vector leptoquarks with ${{\mathit \kappa}}$ = 1 are excluded below masses of 1810 GeV.

³⁵

SIRUNYAN 2018U set limits for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ . The limit quoted above assumes scalar leptoquark with B( ${{\mathit q}}{{\mathit \nu}}$ ) = 1. Vector leptoquarks with ${{\mathit \kappa}}$ = 1 are excluded below masses of 1790 GeV.

³⁶

SIRUNYAN 2018U set limits for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ . The limit quoted above assumes scalar leptoquark with B( ${{\mathit \nu}}{{\mathit t}}$ ) = 1. Vector leptoquarks with ${{\mathit \kappa}}$ = 1 are excluded below masses of 1780 GeV.

³⁷	SIRUNYAN 2018U set limits for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ . ${{\mathit \kappa}}$ = 1 and LQ $\rightarrow$ ${{\mathit b}}{{\mathit \nu}}$ are assumed.

³⁸

SIRUNYAN 2018U set limits for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ . ${{\mathit \kappa}}$ = 1 and LQ $\rightarrow$ ${{\mathit q}}{{\mathit \nu}}$ with ${\mathit {\mathit q}}$ = ${\mathit {\mathit u}},{\mathit {\mathit d}},{\mathit {\mathit s}},{\mathit {\mathit c}}$ are assumed.

³⁹	SIRUNYAN 2018U set limits for scalar and vector leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ , ${{\mathit b}}{{\mathit \nu}}$ , and ${{\mathit q}}{{\mathit \nu}}$ . ${{\mathit \kappa}}$ = 1 and LQ $\rightarrow$ ${{\mathit t}}{{\mathit \nu}}$ are assumed.

⁴⁰	KHACHATRYAN 2017J search for scalar leptoquarks decaying to ${{\mathit \tau}}{{\mathit b}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The limit above assumes B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁴¹	SIRUNYAN 2017H search for scalar leptoquarks using ${{\mathit \tau}}{{\mathit \tau}}{{\mathit b}}{{\mathit b}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁴²	AAD 2016G search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ events in collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes $\mathit B$( ${{\mathit e}}{{\mathit q}}$ ) = 1.

⁴³	AAD 2016G search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ events in collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes $\mathit B$( ${{\mathit \mu}}{{\mathit q}}$ ) = 1.

⁴⁴	AAD 2016G search for scalar leptoquarks decaying to ${{\mathit b}}{{\mathit \nu}}$ . The limit above assumes $\mathit B$( ${{\mathit b}}{{\mathit \nu}}$ ) = 1.

⁴⁵	AAD 2016G search for scalar leptoquarks decaying to ${{\mathit t}}{{\mathit \nu}}$ . The limit above assumes $\mathit B$( ${{\mathit t}}{{\mathit \nu}}$ ) = 1.

⁴⁶

KHACHATRYAN 2016AF search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ )= 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5, the limit becomes 850 GeV.

⁴⁷

KHACHATRYAN 2016AF search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5, the limit becomes 760 GeV.

⁴⁸	KHACHATRYAN 2015AJ search for scalar leptoquarks using ${{\mathit \tau}}{{\mathit \tau}}{{\mathit t}}{{\mathit t}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes $\mathit B$( ${{\mathit \tau}}{{\mathit t}}$ ) = 1.

⁴⁹

KHACHATRYAN 2014T search for scalar leptoquarks decaying to ${{\mathit \tau}}{{\mathit b}}$ using ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The limit above assumes B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1. See their Fig. 5 for the exclusion limit as function of B( ${{\mathit \tau}}{{\mathit b}}$ ).

⁵⁰

SIRUNYAN 2019BC search for scalar leptoquark (LQ) pair production in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. One LQ is assumed to decay to ${{\mathit \mu}}{{\mathit q}}$ , while the other decays to dark matter pair and SM particles. See their Fig. 4 for limits in $\mathit M_{{\mathrm {LQ}}}−\mathit M_{{\mathrm {DM}}}$ plane.

⁵¹	AAD 2013AE search for scalar leptoquarks using ${{\mathit \tau}}{{\mathit \tau}}{{\mathit b}}{{\mathit b}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7$~$TeV. The limit above assumes B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁵²	CHATRCHYAN 2013M search for scalar and vector leptoquarks decaying to ${{\mathit \tau}}{{\mathit b}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above is for scalar leptoquarks with B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁵³

AAD 2012H search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}$ ${{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5, the limit becomes 607 GeV.

⁵⁴

AAD 2012O search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5, the limit becomes 594 GeV.

⁵⁵

CHATRCHYAN 2012AG search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5, the limit becomes 640 GeV.

⁵⁶

CHATRCHYAN 2012AG search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5, the limit becomes 650 GeV.

⁵⁷	CHATRCHYAN 2012BO search for scalar leptoquarks decaying to ${{\mathit \nu}}{{\mathit b}}$ in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV. The limit above assumes B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1.

⁵⁸

AAD 2011D search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV.The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5, the limit becomes 319 GeV.

⁵⁹

AAD 2011D search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5, the limit becomes 362 GeV.

⁶⁰	ABAZOV 2011V search for scalar leptoquarks using ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5.

⁶¹	CHATRCHYAN 2011N search for scalar leptoquarks using ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5.

⁶²	KHACHATRYAN 2011D search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1.

⁶³	KHACHATRYAN 2011E search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1.

⁶⁴	ABAZOV 2010L search for pair productions of scalar leptoquark state decaying to ${{\mathit \nu}}{{\mathit b}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. The limit above assumes B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1.

⁶⁵

ABAZOV 2009 search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5, the limit becomes 270 GeV.

⁶⁶

ABAZOV 2009AF search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5 the bound becomes 284 GeV.

⁶⁷

AALTONEN 2008P search for vector leptoquarks using ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}{{\mathit b}}{{\overline{\mathit b}}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. Assuming Yang-Mills (minimal) couplings, the mass limit is $>$317 GeV (251 GeV) at 95$\%$ CL for B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁶⁸	Search for pair production of scalar leptoquark state decaying to ${{\mathit \tau}}{{\mathit b}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$= 1.96 TeV. The limit above assumes B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁶⁹	Search for scalar leptoquarks using ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\overline{\mathit p}}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. The limit above assumes B( ${{\mathit \nu}}{{\mathit q}}$ ) = 1.

⁷⁰	ABAZOV 2007J search for pair productions of scalar leptoquark state decaying to ${{\mathit \nu}}{{\mathit b}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96 TeV. The limit above assumes B( ${{\mathit \nu}}{{\mathit b}}$ ) = 1.

⁷¹

ABAZOV 2006A search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.8 TeV and 1.96 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5, the limit becomes 204 GeV.

⁷²	ABAZOV 2006L search for scalar leptoquarks using ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.8$~$TeV and at 1.96$~$TeV. The limit above assumes B( ${{\mathit \nu}}{{\mathit q}}$ ) = 1.

⁷³

ABULENCIA 2006T search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ , and ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96$~$TeV. The quoted limit assumes B( ${{\mathit \mu}}{{\mathit q}}$ ) = 1. For B( ${{\mathit \mu}}{{\mathit q}}$ ) = 0.5 or 0.1, the bound becomes 208$~$GeV or 143$~$GeV, respectively. See their Fig.$~$4 for the exclusion limit as a function of B( ${{\mathit \mu}}{{\mathit q}}$ ).

⁷⁴

ABAZOV 2005H search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ and ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\overline{\mathit p}}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.8 TeV and 1.96 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5 the bound becomes 234 GeV.

⁷⁵

ACOSTA 2005P search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\overline{\mathit p}}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 1.96TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ ) = 1. For B( ${{\mathit e}}{{\mathit q}}$ ) = 0.5 and 0.1, the bound becomes 205 GeV and 145 GeV, respectively.

⁷⁶	ABBIENDI 2003R search for scalar/vector leptoquarks in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ collisions at $\sqrt {s }$ = $189 - 209$ GeV. The quoted limits are for charge $−$4/3 isospin 0 scalar-leptoquark with B( ${{\mathit \ell}}{{\mathit q}}$ ) = 1. See their table 12 for other cases.

⁷⁷

ABAZOV 2002 search for scalar leptoquarks using ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\overline{\mathit p}}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$=1.8 TeV. The bound holds for all leptoquark generations. Vector leptoquarks are likewise constrained to lie above 200 GeV.

⁷⁸

ABAZOV 2001D search for scalar leptoquarks using ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ , and ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$=1.8 TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ )=1. For B( ${{\mathit e}}{{\mathit q}}$ )=$0.5$ and 0, the bound becomes 204 and 79$~$GeV, respectively. Bounds for vector leptoquarks are also given. Supersedes ABBOTT 1998E.

⁷⁹

ABBIENDI 2000M search for scalar/vector leptoquarks in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ collisions at $\sqrt {\mathit s }$=183 GeV. The quoted limits are for charge $-4$/3 isospin$~$0 scalar-leptoquarks with B( ${{\mathit \ell}}{{\mathit q}}$ )=1. See their Table$~$8 and Figs.$~6 - 9$ for other cases.

⁸⁰

ABBOTT 2000C search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ , and ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$=1.8 TeV. The limit above assumes B( ${{\mathit \mu}}{{\mathit q}}$ )=1. For B( ${{\mathit \mu}}{{\mathit q}}$ )=0.5 and 0, the bound becomes 180 and 79 GeV respectively. Bounds for vector leptoquarks are also given.

⁸¹

AFFOLDER 2000K search for scalar leptoquark using ${{\mathit \nu}}{{\mathit \nu}}{{\mathit c}}{{\mathit c}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}=1.8~$TeV. The quoted limit assumes B( ${{\mathit \nu}}{{\mathit c}}$ )=1. Bounds for vector leptoquarks are also given.

⁸²

AFFOLDER 2000K search for scalar leptoquark using ${{\mathit \nu}}{{\mathit \nu}}{{\mathit b}}{{\mathit b}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}=1.8~$TeV. The quoted limit assumes B( ${{\mathit \nu}}{{\mathit b}}$ )=1. Bounds for vector leptoquarks are also given.

⁸³

ABBOTT 1999J search for leptoquarks using ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$= $1.8$TeV. The quoted limit is for a scalar leptoquark with B( ${{\mathit \mu}}{{\mathit q}}$ ) = B( ${{\mathit \nu}}{{\mathit q}}$ ) = $0.5$. Limits on vector leptoquarks range from 240 to 290 GeV.

⁸⁴

ABBOTT 1998E search for scalar leptoquarks using ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ , and ${{\mathit \nu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}=1.8$ TeV. The limit above assumes B( ${{\mathit e}}{{\mathit q}}$ )=1. For B( ${{\mathit e}}{{\mathit q}}$ )=$0.5$ and 0, the bound becomes 204 and 79 GeV, respectively.

⁸⁵	ABBOTT 1998J search for charge $−$1/3 third generation scalar and vector leptoquarks in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$= $1.8$ TeV. The quoted limit is for scalar leptoquark with B( ${{\mathit \nu}}{{\mathit b}}$ )=1.

⁸⁶

ABE 1998S search for scalar leptoquarks using ${{\mathit \mu}}{{\mathit \mu}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$= $1.8~$TeV. The limit is for B( ${{\mathit \mu}}{{\mathit q}}$ )= 1. For B( ${{\mathit \mu}}{{\mathit q}}$ )=B( ${{\mathit \nu}}{{\mathit q}}$ )=$0.5$, the limit is $>160$ GeV.

⁸⁷	GROSS-PILCHER 1998 is the combined limit of the CDF and ${D0}$ Collaborations as determined by a joint CDF/${D0}$ working group and reported in this FNAL Technical Memo. Original data published in ABE 1997X and ABBOTT 1998E.

⁸⁸	ABE 1997F search for third generation scalar and vector leptoquarks in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = $1.8$ TeV. The quoted limit is for scalar leptoquark with B( ${{\mathit \tau}}{{\mathit b}}$ ) = 1.

⁸⁹	ABE 1997X search for scalar leptoquarks using ${{\mathit e}}{{\mathit e}}{{\mathit j}}{{\mathit j}}$ events in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\mathit E_{{\mathrm {cm}}}=1.8$ TeV. The limit is for B( ${{\mathit e}}{{\mathit q}}$ )=1.

⁹⁰	Limit is for charge $−$1/3 isospin-0 leptoquark with B( ${{\mathit \ell}}{{\mathit q}}$ ) = 2/3.

⁹¹	First and second generation leptoquarks are assumed to be degenerate. The limit is slightly lower for each generation.

⁹²	Limits are for charge $−$1/3, isospin-0 scalar leptoquarks decaying to ${{\mathit \ell}^{-}}{{\mathit q}}$ or ${{\mathit \nu}}{{\mathit q}}$ with any branching ratio. See paper for limits for other charge-isospin assignments of leptoquarks.

⁹³

KIM 1990 assume pair production of charge 2/3 scalar-leptoquark via photon exchange. The decay of the first (second) generation leptoquark is assumed to be any mixture of ${{\mathit d}}{{\mathit e}^{+}}$ and ${{\mathit u}}{{\overline{\mathit \nu}}}$ ( ${{\mathit s}}{{\mathit \mu}^{+}}$ and ${{\mathit c}}{{\overline{\mathit \nu}}}$ ). See paper for limits for specific branching ratios.

⁹⁴	BARTEL 1987B limit is valid when a pair of charge 2/3 spinless leptoquarks X is produced with point coupling, and when they decay under the constraint B( X $\rightarrow$ ${{\mathit c}}{{\overline{\mathit \nu}}_{{\mu}}}$ ) $+$ B( X $\rightarrow$ ${{\mathit s}}{{\mathit \mu}^{+}}$ ) = 1.

⁹⁵

BEHREND 1986B assumed that a charge 2/3 spinless leptoquark, ${{\mathit \chi}}$, decays either into ${\mathit {\mathit s}}$ ${{\mathit \mu}^{+}}$ or ${\mathit {\mathit c}}$ ${{\overline{\mathit \nu}}}$ : B( ${{\mathit \chi}}$ $\rightarrow$ ${\mathit {\mathit s}}$ ${{\mathit \mu}^{+}}$ ) $+$ B( ${{\mathit \chi}}$ $\rightarrow$ ${\mathit {\mathit c}}$ ${{\overline{\mathit \nu}}}$ ) = 1.

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