Evidence for ηc(2S) in ψ(3686)→γKS0K ±π+π+π-

BESIII Collaboration

doi:10.1103/PhysRevD.87.052005

Evidence for η_c(2S) in ψ(3686)→γKS0K ^±π⁺π⁺π^-

BESIII Collaboration

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

We search for the M1 radiative transition ψ(3686) →γη_c(2S) by reconstructing the exclusive η_c(2S)→KS0K^±π⁺π ⁺π^- decay using 1.06×108 ψ(3686) events collected with the BESIII detector. The signal is observed with a statistical significance of greater than 4 standard deviations. The measured mass of the η_c(2S) is 3646.9±1.6(stat)±3.6(syst) MeV/c2, and the width is 9.9±4.8(stat)±2.9(syst) MeV/c2. The product branching fraction is measured to be B(ψ(3686)→γη_c(2S)) ×B(η_c(2S)→KS0K^±π⁺π ⁺π^-)=(7.03±2.10(stat)±0.70(syst)) ×10^-6. This measurement complements a previous BESIII measurement of ψ(3686)→γη_c(2S) with η_c(2S)→KS0K^±π⁺ and K ⁺K^-π0.

Lingua originale	Inglese
Numero di articolo	052005
Rivista	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	87
Numero di pubblicazione	5
DOI	https://doi.org/10.1103/PhysRevD.87.052005
Stato di pubblicazione	Pubblicato - 4 mar 2013
Pubblicato esternamente	Sì

Accesso al documento

10.1103/PhysRevD.87.052005

Altri file e collegamenti

Link to publication in Scopus

Cita questo

@article{cd27f5f5ada549d98ee1a40176a20add,

title = "Evidence for ηc(2S) in ψ(3686)→γKS0K ±π+π+π- ",

abstract = "We search for the M1 radiative transition ψ(3686) →γηc(2S) by reconstructing the exclusive ηc(2S)→KS0K±π+π +π- decay using 1.06×108 ψ(3686) events collected with the BESIII detector. The signal is observed with a statistical significance of greater than 4 standard deviations. The measured mass of the ηc(2S) is 3646.9±1.6(stat)±3.6(syst) MeV/c2, and the width is 9.9±4.8(stat)±2.9(syst) MeV/c2. The product branching fraction is measured to be B(ψ(3686)→γηc(2S)) ×B(ηc(2S)→KS0K±π+π +π-)=(7.03±2.10(stat)±0.70(syst)) ×10-6. This measurement complements a previous BESIII measurement of ψ(3686)→γηc(2S) with ηc(2S)→KS0K±π+ and K +K-π0.",

author = "\{BESIII Collaboration\} and M. Ablikim and Achasov, \{M. N.\} and O. Albayrak and Ambrose, \{D. J.\} and An, \{F. F.\} and Q. An and Bai, \{J. Z.\} and \{Baldini Ferroli\}, R. and Y. Ban and J. Becker and Bennett, \{J. V.\} and M. Bertani and Bian, \{J. M.\} and E. Boger and O. Bondarenko and I. Boyko and Briere, \{R. A.\} and V. Bytev and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, \{G. F.\} and Cetin, \{S. A.\} and Chang, \{J. F.\} and G. Chelkov and G. Chen and Chen, \{H. S.\} and Chen, \{J. C.\} and Chen, \{M. L.\} and Chen, \{S. J.\} and X. Chen and Chen, \{Y. B.\} and Cheng, \{H. P.\} and Chu, \{Y. P.\} and D. Cronin-Hennessy and Dai, \{H. L.\} and Dai, \{J. P.\} and D. Dedovich and Deng, \{Z. Y.\} and A. Denig and I. Denysenko and M. Destefanis and Ding, \{W. M.\} and Y. Ding and Dong, \{L. Y.\} and Dong, \{M. Y.\} and Du, \{S. X.\} and J. Fang and Fang, \{S. S.\}",

note = "Publisher Copyright: {\textcopyright} 2013 American Physical Society.",

year = "2013",

month = mar,

day = "4",

doi = "10.1103/PhysRevD.87.052005",

language = "English",

volume = "87",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Evidence for ηc(2S) in ψ(3686)→γKS0K ±π+π+π-

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Albayrak, O.

AU - Ambrose, D. J.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Becker, J.

AU - Bennett, J. V.

AU - Bertani, M.

AU - Bian, J. M.

AU - Boger, E.

AU - Bondarenko, O.

AU - Boyko, I.

AU - Briere, R. A.

AU - Bytev, V.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, Y. B.

AU - Cheng, H. P.

AU - Chu, Y. P.

AU - Cronin-Hennessy, D.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Denysenko, I.

AU - Destefanis, M.

AU - Ding, W. M.

AU - Ding, Y.

AU - Dong, L. Y.

AU - Dong, M. Y.

AU - Du, S. X.

AU - Fang, J.

AU - Fang, S. S.

PY - 2013/3/4

Y1 - 2013/3/4

N2 - We search for the M1 radiative transition ψ(3686) →γηc(2S) by reconstructing the exclusive ηc(2S)→KS0K±π+π +π- decay using 1.06×108 ψ(3686) events collected with the BESIII detector. The signal is observed with a statistical significance of greater than 4 standard deviations. The measured mass of the ηc(2S) is 3646.9±1.6(stat)±3.6(syst) MeV/c2, and the width is 9.9±4.8(stat)±2.9(syst) MeV/c2. The product branching fraction is measured to be B(ψ(3686)→γηc(2S)) ×B(ηc(2S)→KS0K±π+π +π-)=(7.03±2.10(stat)±0.70(syst)) ×10-6. This measurement complements a previous BESIII measurement of ψ(3686)→γηc(2S) with ηc(2S)→KS0K±π+ and K +K-π0.

AB - We search for the M1 radiative transition ψ(3686) →γηc(2S) by reconstructing the exclusive ηc(2S)→KS0K±π+π +π- decay using 1.06×108 ψ(3686) events collected with the BESIII detector. The signal is observed with a statistical significance of greater than 4 standard deviations. The measured mass of the ηc(2S) is 3646.9±1.6(stat)±3.6(syst) MeV/c2, and the width is 9.9±4.8(stat)±2.9(syst) MeV/c2. The product branching fraction is measured to be B(ψ(3686)→γηc(2S)) ×B(ηc(2S)→KS0K±π+π +π-)=(7.03±2.10(stat)±0.70(syst)) ×10-6. This measurement complements a previous BESIII measurement of ψ(3686)→γηc(2S) with ηc(2S)→KS0K±π+ and K +K-π0.

UR - https://www.scopus.com/pages/publications/84875021954

U2 - 10.1103/PhysRevD.87.052005

DO - 10.1103/PhysRevD.87.052005

M3 - Article

SN - 1550-7998

VL - 87

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 5

M1 - 052005