Limits on 1/$\mathit R$ = $\mathit M_{{{\mathit c}}}$

INSPIRE   PDGID:
S071KK
This section includes limits on 1/$\mathit R$ = $\mathit M_{{{\mathit c}}}$, the compactification scale in models with one TeV-sized extra dimension, due to exchange of Standard Model KK excitations. Bounds assume fermions are not in the bulk, unless stated otherwise. See the “Extra Dimensions” review for discussion of model dependence.

VALUE (TeV) CL% DOCUMENT ID TECN  COMMENT
$\bf{> 4.16}$ 95 1
AAD
2012CC
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \ell}}{{\overline{\mathit \ell}}}$
$\bf{> 6.1}$ 2
BARBIERI
2004
RVUE Electroweak
• • We do not use the following data for averages, fits, limits, etc. • •
3
FLORES
2023
RVUE minimal universal extra dims
4
AVNISH
2021
RVUE ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ multijet
5
AABOUD
2018AV
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$
6
AABOUD
2018CE
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$
$> 3.8$ 95 7
ACCOMANDO
2015
RVUE Electroweak
$> 3.40$ 95 8
KHACHATRYAN
2015T
 CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit X}}$
9
CHATRCHYAN
2013AQ
 CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit X}}$
$> 1.38$ 95 10
CHATRCHYAN
2013W
 CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, $\delta $=6, ${{\mathit M}_{{{D}}}}$=5 TeV
$> 0.715$ 95 11
EDELHAUSER
2013
RVUE ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \ell}}{{\overline{\mathit \ell}}}{+}$ ${{\mathit X}}$
$> 1.40$ 95 12
AAD
2012CP
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, $\delta $=6, ${{\mathit M}_{{{D}}}}$=5 TeV
$> 1.23$ 95 13
AAD
2012X
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, $\delta $=6, ${{\mathit M}_{{{D}}}}$=5 TeV
$> 0.26$ 95 14
ABAZOV
2012M
 D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \mu}}$
$> 0.75$ 95 15
BAAK
2012
RVUE Electroweak
16
FLACKE
2012
RVUE Electroweak
$> 0.43$ 95 17
NISHIWAKI
2012
RVUE ${{\mathit H}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$, ${{\mathit \gamma}}{{\mathit \gamma}}$
$> 0.729$ 95 18
AAD
2011F
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, $\delta $=6, ${{\mathit M}_{{{D}}}}$=5 TeV
$> 0.961$ 95 19
AAD
2011X
 ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, $\delta $=6, ${{\mathit M}_{{{D}}}}$=5 TeV
$> 0.477$ 95 20
ABAZOV
2010P
 D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, $\delta $=6, ${{\mathit M}_{{{D}}}}$=5 TeV
$> 1.59$ 95 21
ABAZOV
2009AE
 D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ dijet, angular dist.
$> 0.6$ 95 22
HAISCH
2007
RVUE ${{\overline{\mathit B}}}$ $\rightarrow$ ${{\mathit X}_{{{s}}}}{{\mathit \gamma}}$
$> 0.6$ 90 23
GOGOLADZE
2006
RVUE Electroweak
$>3.3$ 95 24
CORNET
2000
RVUE Electroweak
$\text{>3.3 - 3.8}$ 95 25
RIZZO
2000
RVUE Electroweak
1  AAD 2012CC use 4.9 and 5.0 fb${}^{-1}$ of data from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV in the dielectron and dimuon channels, respectively, to place a lower bound on the mass of the lightest KK ${{\mathit Z}}/{{\mathit \gamma}}$ boson (equivalent to 1/${{\mathit R}}$ = ${{\mathit M}_{{{c}}}}$). The limit quoted here assumes a flat prior corresponding to when the pure ${{\mathit Z}}/{{\mathit \gamma}}$ KK cross section term dominates. See their Section 15 for more details.
2  BARBIERI 2004 use electroweak precision observables to place a lower bound on the compactification scale 1/$\mathit R$. Both the gauge bosons and the Higgs boson are assumed to propagate in the bulk.
3  FLORES 2023 use a number of 13 TeV Run 2 searches at the LHC to place constraints on the compactification scale 1/$\mathit R$ and cutoff scale ${{\mathit \Lambda}}$ in the minimal universal extra dimension model with Standard Model fields propagating in the bulk (see their Fig.6).
4  AVNISH 2021 perform a study on the ATLAS collaboration search for multiple jets plus missing transverse energy from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV and integrated luminosity of 139 fb${}^{-1}$, to place constraints on the compactification scale and cutoff scale ${{\mathit \Lambda}}$ in universal extra dimension models with Standard Model fields propagating in the bulk.
5  AABOUD 2018AV use 36.1 fb${}^{-1}$ of data from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV in final states with multiple b-jets, to place a lower bound on the compactification scale in a model with two universal extra dimensions. Assuming the radii of the two extra dimensions are equal, a lower limit of 1.8 TeV for the Kaluza-Klein mass is obtained.
6  AABOUD 2018CE use 36.1 fb${}^{-1}$ of data from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV in final states with same-charge leptons and b-jets, to place a lower bound on the compactification scale in a model with two universal extra dimensions. Assuming the radii of the two extra dimensions are equal, a lower limit of 1.45 TeV for the Kaluza-Klein mass is obtained.
7  ACCOMANDO 2015 use electroweak precision observables to place a lower bound on the compactification scale 1/$\mathit R$. See their Fig. 2 for the bound as a function of sin$\beta $, which parametrizes the VEV contribution from brane and bulk Higgs fields. The quoted value is for the minimum bound which occurs at sin$\beta $ = 0.45.
8  KHACHATRYAN 2015T use 19.7 fb${}^{-1}$ of data from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV to place a lower bound on the compactification scale 1/$\mathit R$.
9  CHATRCHYAN 2013AQ use 5.0 fb${}^{-1}$ of data from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV and a further 3.7 fb${}^{-1}$ of data at $\sqrt {s }$ = 8 TeV to place a lower bound on the compactification scale 1/$\mathit R$, in models with universal extra dimensions and Standard Model fields propagating in the bulk. See their Fig. 5 for the bound as a function of the universal bulk fermion mass parameter ${{\mathit \mu}}$.
10  CHATRCHYAN 2013W use diphoton events with large missing transverse momentum in 4.93 fb${}^{-1}$ of data produced from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV to place a lower bound on the compactification scale in a universal extra dimension model with gravitational decays. The bound assumes that the cutoff scale ${{\mathit \Lambda}}$, for the radiative corrections to the Kaluza-Klein masses, satisfies $\Lambda /{{\mathit M}_{{{c}}}}$ = 20. The model parameters are chosen such that the decay ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit G}}{{\mathit \gamma}}$ occurs with an appreciable branching fraction.
11  EDELHAUSER 2013 use 19.6 and 20.6 fb${}^{-1}$ of data from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV analyzed by the CMS Collaboration in the dielectron and dimuon channels, respectively, to place a lower bound on the mass of the second lightest Kaluza-Klein ${{\mathit Z}}/{{\mathit \gamma}}$ boson (converted to a limit on 1/${{\mathit R}}$ = ${{\mathit M}_{{{c}}}}$). The bound assumes Standard Model fields propagating in the bulk and that the cutoff scale ${{\mathit \Lambda}}$, for the radiative corrections to the Kaluza-Klein masses, satisfies $\Lambda /{{\mathit M}_{{{c}}}}$ = 20.
12  AAD 2012CP use diphoton events with large missing transverse momentum in 4.8 fb${}^{-1}$ of data produced from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV to place a lower bound on the compactification scale in a universal extra dimension model with gravitational decays. The bound assumes that the cutoff scale ${{\mathit \Lambda}}$, for the radiative corrections to the Kaluza-Klein masses, satisfies $\Lambda /{{\mathit M}_{{{c}}}}$ = 20. The model parameters are chosen such that the decay ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit G}}{{\mathit \gamma}}$ occurs with an appreciable branching fraction.
13  AAD 2012X use diphoton events with large missing transverse momentum in 1.07 fb${}^{-1}$ of data produced from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV to place a lower bound on the compactification scale in a universal extra dimension model with gravitational decays. The bound assumes that the cutoff scale ${{\mathit \Lambda}}$, for the radiative corrections to the Kaluza-Klein masses, satisfies ${{\mathit \Lambda}}/{{\mathit M}_{{{c}}}}$ = 20. The model parameters are chosen such that the decay ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit G}}{{\mathit \gamma}}$ occurs with an appreciable branching fraction.
14  ABAZOV 2012M use same-sign dimuon events in 7.3 fb${}^{-1}$ of data from ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV to place a lower bound on the compactification scale 1/$\mathit R$, in models with universal extra dimensions where all Standard Model fields propagate in the bulk.
15  BAAK 2012 use electroweak precision observables to place a lower bound on the compactification scale 1/$\mathit R$, in models with universal extra dimensions and Standard Model fields propagating in the bulk. Bound assumes a 125 GeV Higgs mass. See their Fig. 25 for the bound as a function of the Higgs mass.
16  FLACKE 2012 use electroweak precision observables to place a lower bound on the compactification scale 1/$\mathit R$, in models with universal extra dimensions and Standard Model fields propagating in the bulk. See their Fig. 1 for the bound as a function of the universal bulk fermion mass parameter ${{\mathit \mu}}$.
17  NISHIWAKI 2012 use up to 2 fb${}^{-1}$ of data from the ATLAS and CMS experiments that constrains the production cross section of a Higgs-like particle to place a lower bound on the compactification scale 1/$\mathit R$ in universal extra dimension models. The quoted bound assumes Standard Model fields propagating in the bulk and a 125 GeV Higgs mass. See their Fig. 1 for the bound as a function of the Higgs mass.
18  AAD 2011F use diphoton events with large missing transverse energy in 3.1 pb${}^{-1}$ of data produced from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV to place a lower bound on the compactification scale in a universal extra dimension model with gravitational decays. The bound assumes that the cutoff scale ${{\mathit \Lambda}}$, for the radiative corrections to the Kaluza-Klein masses, satisfies ${{\mathit \Lambda}}/M_{c}$ = 20. The model parameters are chosen such that the decay ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit G}}{{\mathit \gamma}}$ occurs with an appreciable branching fraction.
19  AAD 2011X use diphoton events with large missing transverse energy in 36 pb${}^{-1}$ of data produced from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV to place a lower bound on the compactification scale in a universal extra dimension model with gravitational decays. The bound assumes that the cutoff scale ${{\mathit \Lambda}}$, for the radiative corrections to the Kaluza-Klein masses, satisfies ${{\mathit \Lambda}}/{{\mathit M}_{{{c}}}}$ = 20. The model parameters are chosen such that the decay ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit G}}{{\mathit \gamma}}$ occurs with an appreciable branching fraction.
20  ABAZOV 2010P use diphoton events with large missing transverse energy in 6.3 fb${}^{-1}$ of data produced from ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV to place a lower bound on the compactification scale in a universal extra dimension model with gravitational decays. The bound assumes that the cutoff scale $\Lambda $, for the radiative corrections to the Kaluza-Klein masses, satisfies $\Lambda /M_{c}$=20. The model parameters are chosen such that the decay ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit G}}{{\mathit \gamma}}$ occurs with an appreciable branching fraction.
21  ABAZOV 2009AE use dijet angular distributions in 0.7 fb${}^{-1}$ of data from ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV to place a lower bound on the compactification scale.
22  HAISCH 2007 use inclusive ${{\overline{\mathit B}}}$-meson decays to place a Higgs mass independent bound on the compactification scale 1/$\mathit R$ in the minimal universal extra dimension model.
23  GOGOLADZE 2006 use electroweak precision observables to place a lower bound on the compactification scale in models with universal extra dimensions. Bound assumes a 115 GeV Higgs mass. See their Fig. 3 for the bound as a function of the Higgs mass.
24  CORNET 2000 translates a bound on the coefficient of the 4-fermion operator (${{\overline{\mathit \ell}}}{{\mathit \gamma}_{{{\mu}}}}{{\mathit \tau}^{a}}{{\mathit \ell}})({{\overline{\mathit \ell}}}{{\mathit \gamma}}{}^{{{\mathit \mu}}}$ ${{\mathit \tau}^{a}}{{\mathit \ell}}$) derived by Hagiwara and Matsumoto into a limit on the mass scale of KK ${{\mathit W}}~$bosons.
25  RIZZO 2000 obtains limits from global electroweak fits in models with a Higgs in the bulk (3.8 TeV) or on the standard brane (3.3 TeV).
References