Amplitude analysis of the χc1 →ηπ+π- decays

Standard

Amplitude analysis of the χc1 →ηπ+π- decays. / The BELLE collaboration.

In: Physical Review D, Vol. 95, No. 3, 032002, 13.02.2017.

Research output: Contribution to journal › Article › peer-review

Harvard

The BELLE collaboration 2017, 'Amplitude analysis of the χc1 →ηπ+π- decays', Physical Review D, vol. 95, no. 3, 032002. https://doi.org/10.1103/PhysRevD.95.032002

APA

The BELLE collaboration (2017). Amplitude analysis of the χc1 →ηπ+π- decays. Physical Review D, 95(3), [032002]. https://doi.org/10.1103/PhysRevD.95.032002

Vancouver

The BELLE collaboration. Amplitude analysis of the χc1 →ηπ+π- decays. Physical Review D. 2017 Feb 13;95(3):032002. doi: 10.1103/PhysRevD.95.032002

Author

The BELLE collaboration. / Amplitude analysis of the χc1 →ηπ+π- decays. In: Physical Review D. 2017 ; Vol. 95, No. 3.

BibTeX

@article{7168c72c86854955ab08bdcdf64645d2,

title = "Amplitude analysis of the χc1 →ηπ+π- decays",

abstract = "Using 448.0×106 ψ(3686) events collected with the BESIII detector, an amplitude analysis is performed for ψ(3686)→γχc1, χc1→ηπ+π- decays. The most dominant two-body structure observed is a0(980)±π+; a0(980)±→ηπ±. The a0(980) line shape is modeled using a dispersion relation, and a significant nonzero a0(980) coupling to the η′π channel is measured. We observe χc1→a2(1700)π production for the first time, with a significance larger than 17σ. The production of mesons with exotic quantum numbers, JPC=1-+, is investigated, and upper limits for the branching fractions χc1→π1(1400)±π+, χc1→π1(1600)±π+, and χc1→π1(2015)±π+, with subsequent π1(X)±→ηπ± decay, are determined.",

keywords = "EXOTIC MESON, PI-ETA, PI(0)PI(0)ETA, SYSTEM, GEV/C",

author = "{The BELLE collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and Ai, {X. C.} and O. Albayrak and M. Albrecht and Ambrose, {D. J.} and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and Bian, {J. M.} and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and S. Chen and Chen, {S. J.} and X. Chen and Chen, {X. R.} and Chen, {Y. B.} and Cheng, {H. P.} and Chu, {X. K.} and G. Cibinetto and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = feb,

day = "13",

doi = "10.1103/PhysRevD.95.032002",

language = "English",

volume = "95",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "3",

}

RIS

TY - JOUR

T1 - Amplitude analysis of the χc1 →ηπ+π- decays

AU - The BELLE collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Ai, X. C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

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.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, H. P.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2017/2/13

Y1 - 2017/2/13

N2 - Using 448.0×106 ψ(3686) events collected with the BESIII detector, an amplitude analysis is performed for ψ(3686)→γχc1, χc1→ηπ+π- decays. The most dominant two-body structure observed is a0(980)±π+; a0(980)±→ηπ±. The a0(980) line shape is modeled using a dispersion relation, and a significant nonzero a0(980) coupling to the η′π channel is measured. We observe χc1→a2(1700)π production for the first time, with a significance larger than 17σ. The production of mesons with exotic quantum numbers, JPC=1-+, is investigated, and upper limits for the branching fractions χc1→π1(1400)±π+, χc1→π1(1600)±π+, and χc1→π1(2015)±π+, with subsequent π1(X)±→ηπ± decay, are determined.

AB - Using 448.0×106 ψ(3686) events collected with the BESIII detector, an amplitude analysis is performed for ψ(3686)→γχc1, χc1→ηπ+π- decays. The most dominant two-body structure observed is a0(980)±π+; a0(980)±→ηπ±. The a0(980) line shape is modeled using a dispersion relation, and a significant nonzero a0(980) coupling to the η′π channel is measured. We observe χc1→a2(1700)π production for the first time, with a significance larger than 17σ. The production of mesons with exotic quantum numbers, JPC=1-+, is investigated, and upper limits for the branching fractions χc1→π1(1400)±π+, χc1→π1(1600)±π+, and χc1→π1(2015)±π+, with subsequent π1(X)±→ηπ± decay, are determined.

KW - EXOTIC MESON

KW - PI-ETA

KW - PI(0)PI(0)ETA

KW - SYSTEM

KW - GEV/C

UR - http://www.scopus.com/inward/record.url?scp=85022032634&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.95.032002

DO - 10.1103/PhysRevD.95.032002

M3 - Article

VL - 95

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 032002

ER -

ID: 10095626