First measurements of χcJ → Σ−¯Σ+(J=0,1,2) decays

BESIII Collaboration; M. Ablikim; M.N. Achasov; P. Adlarson; S. Ahmed; M. Albrecht; A. Amoroso; Q. An; Nasser Kalantar-Nayestanaki; Rosa Kappert; Myroslav Kavatsyuk; Johan Messchendorp; Viktor Rodin

doi:10.1103/PhysRevD.101.092002

First measurements of χ_cJ→ Σ⁻¯Σ⁺(J=0,1,2) decays

BESIII Collaboration, M. Ablikim, M.N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht, A. Amoroso, Q. An, Nasser Kalantar-Nayestanaki, Rosa Kappert, Myroslav Kavatsyuk, Johan Messchendorp, Viktor Rodin

Energy and Sustainability Research Institute Groningen

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Abstract

We measured the branching fractions of the decays χcJ→ς-ς¯+ for the first time using the final states nn¯π+π-. The data sample exploited here is 448.1×106 ψ(3686) events collected with BESIII. We find B(χcJ→ς-ς¯+)=(51.3±2.4±4.1)×10-5,(5.7±1.4±0.6)×10-5, and (4.4±1.7±0.5)×10-5, for J=0, 1, 2, respectively, where the first uncertainties are statistical and the second systematic.

Original language	English
Article number	092002
Number of pages	9
Journal	Physical Review D
Volume	101
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.101.092002
Publication status	Published - 1-May-2020

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@article{a09d9181a71440649677e51df9b2692c,

title = "First measurements of χcJ → Σ−¯Σ+(J=0,1,2) decays",

abstract = "We measured the branching fractions of the decays χcJ→ς-ς¯+ for the first time using the final states nn¯π+π-. The data sample exploited here is 448.1×106 ψ(3686) events collected with BESIII. We find B(χcJ→ς-ς¯+)=(51.3±2.4±4.1)×10-5,(5.7±1.4±0.6)×10-5, and (4.4±1.7±0.5)×10-5, for J=0, 1, 2, respectively, where the first uncertainties are statistical and the second systematic.",

author = "{BESIII Collaboration} and M. Ablikim and M.N. Achasov and P. Adlarson and S. Ahmed and M. Albrecht and A. Amoroso and Q. An and Nasser Kalantar-Nayestanaki and Rosa Kappert and Myroslav Kavatsyuk and Johan Messchendorp and Viktor Rodin",

year = "2020",

month = may,

day = "1",

doi = "10.1103/PhysRevD.101.092002",

language = "English",

volume = "101",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "AMER PHYSICAL SOC",

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TY - JOUR

T1 - First measurements of χcJ → Σ−¯Σ+(J=0,1,2) decays

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M.N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, Q.

AU - Kalantar-Nayestanaki, Nasser

AU - Kappert, Rosa

AU - Kavatsyuk, Myroslav

AU - Messchendorp, Johan

AU - Rodin, Viktor

PY - 2020/5/1

Y1 - 2020/5/1

N2 - We measured the branching fractions of the decays χcJ→ς-ς¯+ for the first time using the final states nn¯π+π-. The data sample exploited here is 448.1×106 ψ(3686) events collected with BESIII. We find B(χcJ→ς-ς¯+)=(51.3±2.4±4.1)×10-5,(5.7±1.4±0.6)×10-5, and (4.4±1.7±0.5)×10-5, for J=0, 1, 2, respectively, where the first uncertainties are statistical and the second systematic.

AB - We measured the branching fractions of the decays χcJ→ς-ς¯+ for the first time using the final states nn¯π+π-. The data sample exploited here is 448.1×106 ψ(3686) events collected with BESIII. We find B(χcJ→ς-ς¯+)=(51.3±2.4±4.1)×10-5,(5.7±1.4±0.6)×10-5, and (4.4±1.7±0.5)×10-5, for J=0, 1, 2, respectively, where the first uncertainties are statistical and the second systematic.

U2 - 10.1103/PhysRevD.101.092002

DO - 10.1103/PhysRevD.101.092002

M3 - Article

SN - 1550-7998

VL - 101

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092002

ER -