${{\mathit \phi}{(1020)}}$ MASS

INSPIRE   PDGID:
M004M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1019.461 \pm0.016}$ OUR AVERAGE
$1019.463$ $\pm0.061$ 2.3M 1
KOZYREV
2018
CMD3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$
$1019.462$ $\pm0.042$ $\pm0.056$ 28k 2
LEES
2014H
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \gamma}}$
$1019.51$ $\pm0.02$ $\pm0.05$ 3
LEES
2013Q
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \gamma}}$
$1019.30$ $\pm0.02$ $\pm0.10$ 105k
AKHMETSHIN
2006
CMD2 $0.98 - 1.06$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$1019.52$ $\pm0.05$ $\pm0.05$ 17.4k
AKHMETSHIN
2005
CMD2 0.60-1.38 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$
$1019.483$ $\pm0.011$ $\pm0.025$ 272k 4
AKHMETSHIN
2004
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$
$1019.42$ $\pm0.05$ 1900k 5
ACHASOV
2001E
 SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$, ${{\mathit K}_{{{S}}}}{{\mathit K}_{{{L}}}}$, ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$1019.40$ $\pm0.04$ $\pm0.05$ 23k
AKHMETSHIN
2001B
 CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$
$1019.36$ $\pm0.12$ 6
ACHASOV
2000B
 SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$
$1019.38$ $\pm0.07$ $\pm0.08$ 2200 7
AKHMETSHIN
1999F
 CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{}\geq{}2{{\mathit \gamma}}$
$1019.51$ $\pm0.07$ $\pm0.10$ 11169
AKHMETSHIN
1998
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$1019.5$ $\pm0.4$
BARBERIS
1998
OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}$2 ${{\mathit K}^{+}}$2 ${{\mathit K}^{-}}$
$1019.42$ $\pm0.06$ 55600
AKHMETSHIN
1995
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$1019.7$ $\pm0.3$ 2012
DAVENPORT
1986
MPSF 400 ${{\mathit p}}$ ${}^{}\mathrm {A}$ $\rightarrow$ 4 ${{\mathit K}}$ X
$1019.7$ $\pm0.1$ $\pm0.1$ 5079
ALBRECHT
1985D
 ARG 10 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ X
$1019.3$ $\pm0.1$ 1500
ARENTON
1982
AEMS 11.8 polar. ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\mathit K}}$
$1019.67$ $\pm0.17$ 25080 8
PELLINEN
1982
RVUE
$1019.52$ $\pm0.13$ 3681
BUKIN
1978C
 OLYA ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
• • We do not use the following data for averages, fits, limits, etc. • •
$1018.4$ $\pm0.5$ $\pm0.1$ 9
ALBRECHT
2020
CBAR 0.9 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$1019.21$ $\pm0.04$ $\pm0.03$ 10
HOID
2020
RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$
$1019.54$ $\pm0.10$ $\pm0.51$ 11
AAIJ
2019H
 LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{\pm}}{{\mathit X}}$
$1019.20$ $\pm0.02$ $\pm0.01$ 12
HOFERICHTER
2019
RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$1019.469$ $\pm0.061$ 1.7M
KOZYREV
2018
CMD3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$1019.457$ $\pm0.061$ 610k
KOZYREV
2016
CMD3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$
$1019.48$ $\pm0.01$
LEES
2013F
 BABR ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$
$1019.441$ $\pm0.008$ $\pm0.080$ 542k 13
AKHMETSHIN
2008
CMD2 1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$1019.63$ $\pm0.07$ 12540 14
AUBERT,B
2005J
 BABR ${{\mathit D}^{0}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$1019.8$ $\pm0.7$
ARMSTRONG
1986
OMEG 85 ${{\mathit \pi}^{+}}$ /${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}$ /${{\mathit p}}$4 ${{\mathit K}}{{\mathit p}}$
$1020.1$ $\pm0.11$ 5526 14
ATKINSON
1986
OMEG 20$-$70 ${{\mathit \gamma}}{{\mathit p}}$
$1019.7$ $\pm1.0$
BEBEK
1986
CLEO ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$1019.411$ $\pm0.008$ 642k 15
DIJKSTRA
1986
SPEC 100$-$200 ${{\mathit \pi}^{\pm}}$, ${{\overline{\mathit p}}}$, ${{\mathit p}}$, ${{\mathit K}^{\pm}}$, on ${}^{}\mathrm {Be}$
$1020.9$ $\pm0.2$ 14
FRAME
1986
OMEG 13 ${{\mathit K}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit p}}$
$1021.0$ $\pm0.2$ 14
ARMSTRONG
1983B
 OMEG 18.5 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit \Lambda}}$
$1020.0$ $\pm0.5$ 14
ARMSTRONG
1983B
 OMEG 18.5 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit \Lambda}}$
$1019.7$ $\pm0.3$ 14
BARATE
1983
GOLI 190 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ 2 ${{\mathit \mu}}$ X
$1019.8$ $\pm0.2$ $\pm0.5$ 766
IVANOV
1981
OLYA 1$-$1.4 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$1019.4$ $\pm0.5$ 337
COOPER
1978B
 HBC 0.7$-$0.8 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1020$ $\pm1$ 383 14
BALDI
1977
CNTR 10 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \phi}}{{\mathit p}}$
$1018.9$ $\pm0.6$ 800
COHEN
1977
ASPK 6 ${{\mathit \pi}^{\pm}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit N}}$
$1019.7$ $\pm0.5$ 454
KALBFLEISCH
1976
HBC 2.18 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}}{{\overline{\mathit K}}}$
$1019.4$ $\pm0.8$ 984
BESCH
1974
CNTR 2 ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$1020.3$ $\pm0.4$ 100
BALLAM
1973
HBC 2.8$-$9.3 ${{\mathit \gamma}}{{\mathit p}}$
$1019.4$ $\pm0.7$
BINNIE
1973B
 CNTR ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit n}}$
$1019.6$ $\pm0.5$ 120 16
AGUILAR-BENIT..
1972B
 HBC 3.9,4.6 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$1019.9$ $\pm0.5$ 100 16
AGUILAR-BENIT..
1972B
 HBC 3.9,4.6 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit p}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$1020.4$ $\pm0.5$ 131
COLLEY
1972
HBC 10 ${{\mathit K}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit p}}{{\mathit \phi}}$
$1019.9$ $\pm0.3$ 410
STOTTLEMYER
1971
HBC 2.9 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \Lambda}}$ ${{\mathit K}}{{\overline{\mathit K}}}$
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  Using a total width of $4.43$ $\pm0.05$ MeV. Systematic uncertainty included.
7  Using a total width of $4.43$ $\pm0.05$ MeV.
8  PELLINEN 1982 review includes AKERLOF 1977, DAUM 1981, BALDI 1977, AYRES 1974, DEGROOT 1974.
9  Width fixed at 4.2 MeV.
10  The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization. Inclusion of vacuum polarization gives $1019.457$ $\pm0.020$ MeV.
11  From the ${{\mathit D}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ Dalitz plot fit with the Triple-M amplitude in the multimeson model of AOUDE 2018.
12  The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization.
13  Strongly correlated with AKHMETSHIN 2004.
14  Systematic errors not evaluated.
15  Weighted and scaled average of 12 measurements of DIJKSTRA 1986.
16  Mass errors enlarged by us to $\Gamma /\sqrt {\mathit N }$; see the note with the ${{\mathit K}^{*}{(892)}}$ mass.
References