# ${{\boldsymbol \phi}{(1020)}}$ WIDTH INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 4.249 \pm0.013}$ OUR AVERAGE  Error includes scale factor of 1.1.
$4.245$ $\pm0.013$ 2.3M 1
 2018
CMD3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$
$4.205$ $\pm0.103$ $\pm0.067$ 28k 2
 2014 H
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \gamma}}$
$4.29$ $\pm0.04$ $\pm0.07$ 3
 2013 Q
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \gamma}}$
$4.30$ $\pm0.06$ $\pm0.17$ 105k
 2006
CMD2 $0.98 - 1.06$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$4.280$ $\pm0.033$ $\pm0.025$ 272k 4
 2004
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$
$4.21$ $\pm0.04$ 1900k 5
 2001 E
SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_{{S}}}{{\mathit K}_{{L}}}$ , ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$4.44$ $\pm0.09$ 55600
 1995
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$4.5$ $\pm0.7$ 1500
 1982
AEMS 11.8 polar. ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\mathit K}}$
$4.2$ $\pm0.6$ 766 6
 1981
OLYA 1$-$1.4 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$4.3$ $\pm0.6$ 6
 1980
DM1 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$4.36$ $\pm0.29$ 3681 6
 1978 C
OLYA ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$4.4$ $\pm0.6$ 984 6
 1974
CNTR 2 ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$4.67$ $\pm0.72$ 681 6
 1971
OSPK ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$4.09$ $\pm0.29$
 1970
OSPK ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
• • • We do not use the following data for averages, fits, limits, etc. • • •
$4.249$ $\pm0.015$ 1.7M
 2018
CMD3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$4.240$ $\pm0.017$ 610k
 2016
CMD3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$
$4.37$ $\pm0.02$
 2013 F
BABR ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$
$4.24$ $\pm0.02$ $\pm0.03$ 542k 7
 2008
CMD2 1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$4.28$ $\pm0.13$ 12540 8
 2005 J
BABR ${{\mathit D}^{0}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$4.45$ $\pm0.06$ 271k
 1986
SPEC 100 ${{\mathit \pi}^{-}}{}^{}\mathrm {Be}$
$3.6$ $\pm0.8$ 337 6
 1978 B
HBC 0.7$-$0.8 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$4.5$ $\pm0.50$ 1300 8, 6
 1977
SPEC 400 ${{\mathit p}}$ ${}^{}\mathrm {A}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ X
$4.5$ $\pm0.8$ 500 8, 6
 1974
ASPK 3$-$6 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$ , ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \Lambda}}$ $/{{\mathit \Sigma}^{0}}$
$3.81$ $\pm0.37$
 1974 B
OSPK ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$
$3.8$ $\pm0.7$ 454 6
 1972
HBC 2.18 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit n}}$
1  Average of KOZYREV 2016 and KOZYREV 2018 values taking into account the correlated uncertainties. Supersedes individual KOZYREV 2016 and KOZYREV 2018 results.
2  Using a vector meson dominance model with contribution from ${{\mathit \phi}{(1020)}}$ and higher mass excitations of ${{\mathit \rho}{(770)}}$, ${{\mathit \omega}{(782)}}$, and ${{\mathit \phi}{(1020)}}$.
3  Using a phenomenological model based on KUHN 1990 with a sum of Breit-Wigner resonances for ${{\mathit \rho}{(770)}}$, ${{\mathit \omega}{(782)}}$, ${{\mathit \phi}{(1020)}}$ and their higher mass excitations.
4  Update of AKHMETSHIN 1999D
5  From the combined fit assuming that the total ${{\mathit \phi}{(1020)}}$ production cross section is saturated by those of ${{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_{{S}}}{{\mathit K}_{{L}}}$ , ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ , and ${{\mathit \eta}}{{\mathit \gamma}}$ decays modes and using ACHASOV 2000B for the ${{\mathit \eta}}{{\mathit \gamma}}$ decay mode.
6  Width errors enlarged by us to 4${}\Gamma /\sqrt {\mathit N }$; see the note with the ${{\mathit K}^{*}{(892)}}$ mass.
7  Strongly correlated with AKHMETSHIN 2004 .
8  Systematic errors not evaluated.
References:
 KOZYREV 2018
PL B779 64 Study of the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ in the Center-of-Mass Energy Range $1010 - 1060$ MeV with the CMD-3 Detector
 KOZYREV 2016
PL B760 314 Study of the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ in the Center-of-Mass Energy Range $1004 - 1060$ MeV with the CMD-3 Detector at the VEPP-2000 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collider
 LEES 2014H
PR D89 092002 Cross Sections for the Reactions ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ , ${{\mathit K}_S^0}{{\mathit K}_L^0}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit K}_S^0}{{\mathit K}_S^0}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, and ${{\mathit K}_S^0}{{\mathit K}_S^0}{{\mathit K}^{+}}{{\mathit K}^{-}}$ from Events with Initial-State Radiation
 LEES 2013Q
PR D88 032013 Precision Measurement of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$( ${{\mathit \gamma}}$) Cross Section with the Initial-State Radiation Method at BaBar
 LEES 2013F
PR D87 052010 Search for Direct $\mathit CP$ Violation in Singly Cabibbo-Suppressed ${{\mathit D}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{\pm}}$ Decays
 AKHMETSHIN 2008
PL B669 217 Measurement of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ Cross Section with CMD-2 Detector at VEPP-2M Collider
 AKHMETSHIN 2006
PL B642 203 Study of ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ with CMD-2 Detector
 AUBERT,B 2005J
PR D72 052008 Dalitz Plot Analysis of ${{\mathit D}^{0}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
 AKHMETSHIN 2004
PL B578 285 Reanalysis of Hadronic Cross Section Measurements at CMD-2
 ACHASOV 2001E
PR D63 072002 Measurements of the Parameters of the ${{\mathit \phi}{(1020)}}$ Resonance through Studies of the Processes ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_S^0}{{\mathit K}_L^0}$ , and ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
 AKHMETSHIN 1995
PL B364 199 Measurement of ${{\mathit \phi}}$-Meson Parameters with CMD-2 Detector at VEPP-2M Collider
 DIJKSTRA 1986
ZPHY C31 375 High Statistics Inclusive ${{\mathit \phi}}$ Meson Production at SPS Energy
 ARENTON 1982
PR D25 2241 ${{\mathit \phi}}$ Meson Production in the Reaction ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit p}}$ at 11.75 ${\mathrm {GeV/}}\mathit c$
 IVANOV 1981
PL 107B 297 Measurement of the Charged Kaon Formfactor in the Energy Range 1.0 to 1.4 GeV
 CORDIER 1980
NP B172 13 Cross Section of the Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ for Center-of-Mass Energies from 750 to 1100 MeV
 BUKIN 1978C
SJNP 27 516 The ${{\mathit \phi}}$ Meson: Precision Measurement of its Mass, Observation of the ${{\mathit \omega}}{{\mathit \phi}}$ Interference
 COOPER 1978B
NP B146 1 ${{\mathit \phi}}$ and ${{\mathit \omega}}$ Meson Production in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilations at $0.70 - 0.76$ ${\mathrm {GeV/}}\mathit c$ and the OZI Rule
 AKERLOF 1977
PRL 39 861 Measurement of ${{\mathit \phi}}$ Production in Proton Nucleus Collisions at 400 ${\mathrm {GeV/}}\mathit c$
 AYRES 1974
PRL 32 1463 ${{\mathit \phi}}$ Meson Production in ${{\mathit \pi}^{-}}{{\mathit p}}$ and ${{\mathit K}^{-}}{{\mathit p}}$ Interactions from 3 to 6 ${\mathrm {GeV/}}\mathit c$
 BESCH 1974
NP B70 257 Photoproduction of ${{\mathit \phi}}$ Mesons on Protons at 2.0 GeV
 COSME 1974B
PL 48B 159 ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ Production by ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation at ${{\mathit \phi}}$ Energy
 BORENSTEIN 1972
PR D5 1559 Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Xi}^{-}}{{\mathit K}^{0}}{{\mathit \pi}^{+}}$ at 2.18 ${\mathrm {GeV/}}\mathit c$
 BALAKIN 1971
PL 34B 328 Investigation of the ${{\mathit \phi}}$ Meson Resonance by Electron Positron Colliding Beams
 BIZOT 1970
PL 32B 416 Study of the ${{\mathit \phi}}$ Meson by ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation into Charged ${{\mathit K}}$ Mesons and Tests of Vector Dominance Models