Measurement of $e^+e^- \to \pi^+\pi^-\psi(2S)$ via Initial State Radiation at Belle - INSPIRE

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Measurement of $e^+e^- \to \pi^+\pi^-\psi(2S)$ via Initial State Radiation at Belle

Belle

Collaboration

•

X.L. Wang
(
- Virginia Tech.
)

Oct 28, 2014

15 pages

Published in:

Phys.Rev.D 91 (2015) 112007

Published: Jun 12, 2015

e-Print:

1410.7641 [hep-ex]

DOI:

10.1103/PhysRevD.91.112007

PDG:

{{\mathit \psi}{(4360)}}

\rightarrow

{{\mathit e}^{+}}{{\mathit e}^{-}}

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

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reference search188 citations

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Abstract: (APS)

We report measurement of the cross section of e+e-→π+π-ψ(2S) between 4.0 and 5.5 GeV, based on an analysis of initial state radiation events in a 980 fb−1 data sample recorded with the Belle detector. The properties of the Y(4360) and Y(4660) states are determined. Fitting the mass spectrum of π+π-ψ(2S) with two coherent Breit-Wigner functions, we find two solutions with identical mass and width but different couplings to electron-positron pairs: MY(4360)=(4347±6±3) MeV/c2, ΓY(4360)=(103±9±5) MeV, MY(4660)=(4652±10±8) MeV/c2, ΓY(4660)=(68±11±1) MeV; and B[Y(4360)→π+π-ψ(2S)]·ΓY(4360)e+e-=(10.9±0.6±0.7) eV and B[Y(4660)→π+π-ψ(2S)]·ΓY(4660)e+e-=(8.1±1.1±0.5) eV for one solution; or B[Y(4360)→π+π-ψ(2S)]·ΓY(4360)e+e-=(9.2±0.6±0.6) eV and B[Y(4660)→π+π-ψ(2S)]·ΓY(4660)e+e-=(2.0±0.3±0.2) eV for the other. Here, the first errors are statistical and the second systematic. Evidence for a charged charmoniumlike structure at 4.05 GeV/c2 is observed in the π±ψ(2S) intermediate state in the Y(4360) decays.

Note:

21 pages, 12 figures

14.40.Pq
13.25.Gv
13.66.Bc
electron positron: annihilation
electron positron: colliding beams
radiation: initial-state interaction
psi(3685): electroproduction
psi(3685): hadronic decay
pi: pair production
cross section: energy dependence

References(31)

Figures(13)

[1]

Heavy Quarkonium: Progress, Puzzles, and Opportunities

N. Brambilla
(
- Munich, Tech. U.
)
,
S. Eidelman
(
- Novosibirsk State U. and
- Novosibirsk, IYF
)
,
B.K. Heltsley
(
- Cornell U., Phys. Dept.
)
,
R. Vogt
(
- UC, Davis and
- LLNL, Livermore
)
,
G.T. Bodwin
(
- Argonne
)

et al.

- Eur.Phys.J.C 71 (2011) 1534
•
e-Print:
- 1010.5827
•
DOI:
- 10.1140/epjc/s10052-010-1534-9

[1]

QCD and Strongly Coupled Gauge Theories: Challenges and Perspectives

N. Brambilla
(
- Munich, Tech. U.
)
,
S. Eidelman
(
- Novosibirsk, IYF and
- Novosibirsk State U.
)
,
P. Foka
(
- Darmstadt, GSI
)
,
S. Gardner
(
- Kentucky U.
)
,
A.S. Kronfeld
(
- Fermilab
)

et al.

- Eur.Phys.J.C 74 (2014) 10, 2981
•
e-Print:
- 1404.3723
•
DOI:
- 10.1140/epjc/s10052-014-2981-5

[2]

Recent progress on the study of the charmoniumlike states

Chang-Zheng Yuan
(
- Beijing, Inst. High Energy Phys.
)

- Int.J.Mod.Phys.A 29 (2014) 1430046
•
e-Print:
- 1404.7768
•
DOI:
- 10.1142/S0217751X14300464

[3]

Observation of a broad structure in the $\pi^+ \pi^- J/\psi$ mass spectrum around 4.26-GeV/c $^2$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 95 (2005) 142001
•
e-Print:
- hep-ex/0506081
•
DOI:
- 10.1103/PhysRevLett.95.142001

[4]

Confirmation of the Y(4260) resonance production in ISR

CLEO

Collaboration

•

Q. He
(
- Rochester U.
)

et al.

- Phys.Rev.D 74 (2006) 091104
•
e-Print:
- hep-ex/0611021
•
DOI:
- 10.1103/PhysRevD.74.091104

[5]

Measurement of e+ e- ---> pi+ pi- J/psi cross-section via initial state radiation at Belle

Belle

Collaboration

•

C.Z. Yuan

et al.

- Phys.Rev.Lett. 99 (2007) 182004
•
e-Print:
- 0707.2541
•
DOI:
- 10.1103/PhysRevLett.99.182004

[6]

Evidence of a broad structure at an invariant mass of 4.32- $GeV/c^{2}$ in the reaction $e^{+} e^{-} \to \pi^{+} \pi^{-} \psi_{2S}$ measured at BaBar

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 98 (2007) 212001
•
e-Print:
- hep-ex/0610057
•
DOI:
- 10.1103/PhysRevLett.98.212001

[7]

Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle

Belle

Collaboration

•

X.L. Wang

et al.

- Phys.Rev.Lett. 99 (2007) 142002
•
e-Print:
- 0707.3699
•
DOI:
- 10.1103/PhysRevLett.99.142002

[8]

Study of the reaction $e^{+}e^{-} \to J/\psi\pi^{+}\pi^{-}$ via initial-state radiation at BaBar

BaBar

Collaboration

•

J.P. Lees
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 86 (2012) 051102
•
e-Print:
- 1204.2158
•
DOI:
- 10.1103/PhysRevD.86.051102

[9]

Study of $e^+e^- → π^+ π^- J/ψ$ and Observation of a Charged Charmoniumlike State at Belle

Belle

Collaboration

•

Z.Q. Liu
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.Lett. 110 (2013) 252002,
- Phys.Rev.Lett. 111 (2013) 019901 (erratum)
•
e-Print:
- 1304.0121
•
DOI:
- 10.1103/PhysRevLett.110.252002

[10]

Study of the reaction $e^{+}e^{-}\to \psi(2S)\pi^{-}\pi^{-}$ via initial-state radiation at BaBar

BaBar

Collaboration

•

J.P. Lees
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 89 (2014) 11, 111103
•
e-Print:
- 1211.6271
•
DOI:
- 10.1103/PhysRevD.89.111103

[11]

Observation of ψ(4040) and ψ(4160) decay into ηJ/ψ

Belle

Collaboration

•

X.L. Wang
(
- Beijing, Inst. High Energy Phys. and
- Virginia Tech., Blacksburg
)

et al.

- Phys.Rev.D 87 (2013) 5, 051101
•
e-Print:
- 1210.7550
•
DOI:
- 10.1103/PhysRevD.87.051101

[12]

Observation of a Charged Charmoniumlike Structure in $e^+e^- \to \pi^+\pi^- J/\psi$ at $\sqrt{s}$ =4.26 GeV

BESIII

Collaboration

•

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

et al.

- Phys.Rev.Lett. 110 (2013) 252001
•
e-Print:
- 1303.5949
•
DOI:
- 10.1103/PhysRevLett.110.252001

[13]

Observation of a Charged Charmoniumlike Structure $Z_c$ (4020) and Search for the $Z_c$ (3900) in $e^+e^- \to π^+π^-h_c$

BESIII

Collaboration

•

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

et al.

- Phys.Rev.Lett. 111 (2013) 24, 242001
•
e-Print:
- 1309.1896
•
DOI:
- 10.1103/PhysRevLett.111.242001

[14]

The Belle Detector

Belle

Collaboration

•

A. Abashian

et al.

- Nucl.Instrum.Meth.A 479 (2002) 117-232
•
DOI:
- 10.1016/S0168-9002(01)02013-7

[14]

Physics Achievements from the Belle Experiment

Belle

Collaboration

•

Jolanta Brodzicka
(
- Cracow, INP
)

et al.

- PTEP 2012 (2012) 04D001
•
e-Print:
- 1212.5342
•
DOI:
- 10.1093/ptep/pts072

[15]

Overview of the KEKB accelerators

S. Kurokawa
(
- KEK, Tsukuba
)
,
Eiji Kikutani
(
- KEK, Tsukuba
)

- Nucl.Instrum.Meth.A 499 (2003) 1-7
•
DOI:
- 10.1016/S0168-9002(02)01771-0

[15]

Achievements of KEKB

et al.

- PTEP 2013 (2013) 03A001
•
DOI:
- 10.1093/ptep/pts102

[15]

Accelerator design at SuperKEKB

et al.

- PTEP 2013 (2013) 03A011
•
DOI:
- 10.1093/ptep/pts083

[16]

GEANT3

[17]

Radiative return at NLO and the measurement of the hadronic cross-section in electron positron annihilation

German Rodrigo
(
- CERN
)
,
Henryk Czyz
(
- Silesia U. and
- Bologna U.
)
,
Johann H. Kuhn
(
- CERN and
- Karlsruhe U., TTP
)
,
Marcin Szopa
(
- Silesia U.
)

- Eur.Phys.J.C 24 (2002) 71-82
•
e-Print:
- hep-ph/0112184
•
DOI:
- 10.1007/s100520200912

[17]

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Collaborations

•

S. Actis
(
- PSI, Villigen
)

et al.

- Eur.Phys.J.C 66 (2010) 585-686
•
e-Print:
- 0912.0749
•
DOI:
- 10.1140/epjc/s10052-010-1251-4

[18]

Belle PID

E. Nakano
(
- Osaka City U.
)

- Nucl.Instrum.Meth.A 494 (2002) 402-408
•
DOI:
- 10.1016/S0168-9002(02)01510-3

[19]

Electron identification in Belle

- Nucl.Instrum.Meth.A 485 (2002) 490-503
•
e-Print:
- hep-ex/0108044
•
DOI:
- 10.1016/S0168-9002(01)02113-1

[20]

Muon identification in the Belle experiment at KEKB

et al.

- Nucl.Instrum.Meth.A 491 (2002) 1-2, 69-82
•
DOI:
- 10.1016/S0168-9002(02)01164-6

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