Search for C-parity violation in $J/ \psi \to \gamma\gamma$ and $ \gamma \phi$ - INSPIRE

DataBETA

Search for C-parity violation in $J/ \psi \to \gamma\gamma$ and $\gamma \phi$

BESIII

Collaboration

Sep 14, 2014

7 pages

Published in:

Phys.Rev.D 90 (2014) 9, 092002

Published: Nov 3, 2014

e-Print:

1409.4040 [hep-ex]

DOI:

10.1103/PhysRevD.90.092002

PDG:

{{\mathit J / \psi}{(1S)}}

\rightarrow

{{\mathit \gamma}}{{\mathit \phi}}

Experiments:

BEPC-BES-III

View in:

reference search8 citations

Citations per year

Abstract: (APS)

Using 1.06×108 ψ(3686) events recorded in e+e- collisions at s=3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity violation in J/ψ→γγ and γϕ decays via ψ(3686)→J/ψπ+π-. No significant signals are observed in either channel. Upper limits on the branching fractions are set to be B(J/ψ→γγ)<2.7×10-7 and B(J/ψ→γϕ)<1.4×10-6 at the 90% confidence level. The former is one order of magnitude more stringent than the previous upper limit, and the latter represents the first limit on this decay channel.

Note:

7 pages, 2 figures

13.25.Gv
12.38.Qk
11.30.Er
charge conjugation: violation
Beijing Stor
BES
electron positron: annihilation
psi(3685): hadronic decay
J/psi(3100): radiative decay
branching ratio: upper limit

References(23)

Figures(2)

[1]

Review of Particle Physics (RPP)

J. Beringer
(
- LBL, Berkeley
)
,
J.F. Arguin
(
- LBL, Berkeley and
- Montreal U.
)
,
R.M. Barnett
(
- LBL, Berkeley
)
,
K. Copic
(
- LBL, Berkeley
)
,
O. Dahl
(
- LBL, Berkeley
)

et al.

- Phys.Rev.D 86 (2012) 010001
•
DOI:
- 10.1103/PhysRevD.86.010001

[2]

Neutral Decays of the J/psi Particle

et al.

- Phys.Lett.B 66 (1977) 489-492
•
DOI:
- 10.1016/0370-2693(77)90594-9

[3]

Search for the C-parity violating process J/psi ---> gamma gamma via psi(2S) ---> pi+ pi- J/psi

BES

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.D 76 (2007) 117101
•
e-Print:
- 0709.3371
•
DOI:
- 10.1103/PhysRevD.76.117101

[4]

Search for resonant $B^\pm \to K^\pm$ h $\to K^\pm \gamma \gamma$ Decays at Belle

Belle

Collaboration

•

I. Adachi

et al.

- Phys.Lett.B 662 (2008) 323-329
•
e-Print:
- hep-ex/0608037
•
DOI:
- 10.1016/j.physletb.2008.03.029

[5]

Observation of J/psi --> 3 gamma

CLEO

Collaboration

•

G.S. Adams
(
- Rensselaer Poly.
)

et al.

- Phys.Rev.Lett. 101 (2008) 101801
•
e-Print:
- 0806.0671
•
DOI:
- 10.1103/PhysRevLett.101.101801

[6]

Determination of the number of $\psi^{\prime}$ event at BESIII

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Chin.Phys.C 37 (2013) 063001
•
e-Print:
- 1209.6199
•
DOI:
- 10.1088/1674-1137/37/6/063001

[7]

Measurement of the integrated luminosities of the data taken by BESIII at $\sqrt{s}=$ 3.650 and 3.773 GeV

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

for the collaboration.

- Chin.Phys.C 37 (2013) 123001
•
e-Print:
- 1307.2022
•
DOI:
- 10.1088/1674-1137/37/12/123001

[8]

Design and Construction of the BESIII Detector

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Nucl.Instrum.Meth.A 614 (2010) 345-399
•
e-Print:
- 0911.4960
•
DOI:
- 10.1016/j.nima.2009.12.050

[9]

The BES detector

BES

Collaboration

•

J.Z. Bai
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Nucl.Instrum.Meth.A 344 (1994) 319-334
•
DOI:
- 10.1016/0168-9002(94)90081-7

[9]

The BES upgrade

BES

Collaboration

•

J.Z. Bai

et al.

- Nucl.Instrum.Meth.A 458 (2001) 627-637
•
DOI:
- 10.1016/S0168-9002(00)00934-7

[10]

Special issue on Physics at BES-III Int. J Mod. Phys. A 24 Supp

K.T. Chao
,
Y.F. Wang

[11]

High Energy Physics &

Z.Y. Deng

- Nucl.Phys. 30 (2006) 371

[12]

The Precision Monte Carlo event generator K K for two fermion final states in e+ e- collisions

S. Jadach
(
- DESY and
- Cracow, INP and
- CERN
)
,
B.F.L. Ward
(
- Tennessee U. and
- CERN and
- SLAC
)
,
Z. Was
(
- Cracow, INP and
- CERN
)

- Comput.Phys.Commun. 130 (2000) 260-325
•
e-Print:
- hep-ph/9912214
•
DOI:
- 10.1016/S0010-4655(00)00048-5

[12]

Coherent exclusive exponentiation for precision Monte Carlo calculations

S. Jadach
(
- Tennessee U. and
- Cracow, INP
)
,
B.F.L. Ward
(
- Tennessee U.
)
,
Z. Was
(
- Cracow, INP and
- CERN
)

- Phys.Rev.D 63 (2001) 113009
•
e-Print:
- hep-ph/0006359
•
DOI:
- 10.1103/PhysRevD.63.113009

[13]

Event generators at BESIII

Rong-Gang Ping
(
- Beijing, Inst. High Energy Phys.
)

- Chin.Phys.C 32 (2008) 599
•
DOI:
- 10.1088/1674-1137/32/8/001

[13]

The EvtGen particle decay simulation package

D.J. Lange
(
- LLNL, Livermore
)

- Nucl.Instrum.Meth.A 462 (2001) 152-155
•
DOI:
- 10.1016/S0168-9002(01)00089-4

[14]

Review of particle physics

K. Nakamura
(
- Tokyo U., IPMU and
- KEK, Tsukuba
)
,
K. Hagiwara
(
- KEK, Tsukuba
)
,
K. Hikasa
(
- Tohoku U.
)
,
H. Murayama
(
- LBL, Berkeley and
- UC, Berkeley and
- Tokyo U., IPMU
)
,
M. Tanabashi
(
- Nagoya U.
)

et al.

- J.Phys.G 37 (2010) 075021
•
DOI:
- 10.1088/0954-3899/37/7A/075021

[15]

Event generator for J / psi and psi (2S) decay

- Phys.Rev.D 62 (2000) 034003
•
DOI:
- 10.1103/PhysRevD.62.034003

[16]

psi(2S) ---> pi+ pi- J / psi decay distributions

BES

Collaboration

•

J.Z. Bai

et al.

- Phys.Rev.D 62 (2000) 032002
•
e-Print:
- hep-ex/9909038
•
DOI:
- 10.1103/PhysRevD.62.032002

[17]

Bayesian credible interval construction for Poisson statistics

Yong-Sheng Zhu
(
- Beijing, Inst. High Energy Phys.
)

- Chin.Phys.C 32 (2008) 363
•
e-Print:
- 0812.2705
•
DOI:
- 10.1088/1674-1137/32/5/007

[18]

A Unified approach to the classical statistical analysis of small signals

Gary J. Feldman
(
- Harvard U.
)
,
Robert D. Cousins
(
- UCLA
)

- Phys.Rev.D 57 (1998) 3873-3889
•
e-Print:
- physics/9711021
•
DOI:
- 10.1103/PhysRevD.57.3873

[19]

Study of $\chi_{cJ}$ radiative decays into a vector meson

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.D 83 (2011) 112005
•
e-Print:
- 1103.5564
•
DOI:
- 10.1103/PhysRevD.83.112005

[20]

Evidence for $\psi^\prime$ decays into $\gamma \pi^0$ and $\gamma \eta$

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.Lett. 105 (2010) 261801
•
e-Print:
- 1011.0885
•
DOI:
- 10.1103/PhysRevLett.105.261801