Measurement of the branching fraction for psi(3770) -> gamma chi c0

BESIII Collaboration

doi:10.1016/j.physletb.2015.11.074

Measurement of the branching fraction for psi(3770) -> gamma chi c0

BESIII Collaboration

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Abstract

By analyzing a data set of 2.92 fb(-1) of e(+) e(-) collision data taken at root s = 3.773 GeVand 106.41 x 10(6) psi(3686) decays taken at root s = 3.686 GeVwith the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for psi(3770)->gamma chi c0 to be B(psi(3770)->gamma chi c0) = (6.88 +/- 0.28 +/- 0.67) x 10(-3) and Gamma[psi(3770)->gamma chi c0] = (187 +/- 8 +/- 19) keV, respectively. These are the most precise measurements to date. (C) 2015 The Authors. Published by Elsevier B.V.

Original language	English
Pages (from-to)	103-109
Number of pages	7
Journal	Physics Letters B
Volume	753
DOIs	https://doi.org/10.1016/j.physletb.2015.11.074
Publication status	Published - 10-Feb-2016

Keywords

CROSS-SECTIONS
HEAVY QUARKONIUM
FINAL-STATES
MONTE-CARLO
TRANSITIONS
DECAY
MASS

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Measurement of the branching fraction for ψ(3770) → γ χc0Final publisher's version, 516 KBLicence: CC BY

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@article{3c6ab64baea446aeadeda8ca0054a08d,

title = "Measurement of the branching fraction for psi(3770) -> gamma chi c0",

abstract = "By analyzing a data set of 2.92 fb(-1) of e(+) e(-) collision data taken at root s = 3.773 GeVand 106.41 x 10(6) psi(3686) decays taken at root s = 3.686 GeVwith the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for psi(3770)->gamma chi c0 to be B(psi(3770)->gamma chi c0) = (6.88 +/- 0.28 +/- 0.67) x 10(-3) and Gamma[psi(3770)->gamma chi c0] = (187 +/- 8 +/- 19) keV, respectively. These are the most precise measurements to date. (C) 2015 The Authors. Published by Elsevier B.V.",

keywords = "CROSS-SECTIONS, HEAVY QUARKONIUM, FINAL-STATES, MONTE-CARLO, TRANSITIONS, DECAY, MASS",

author = "M. Ablikim and M.N. Achasov and X.C. Ai and O. Albayrak and M. Albrecht and D.J. Ambrose and A. Amoroso and Z. Haddadi and N. Kalantar-Nayestanaki and M. Kavatsyuk and H. Loehner and J.G. Messchendorp and M. Tiemens and {BESIII Collaboration}",

year = "2016",

month = feb,

day = "10",

doi = "10.1016/j.physletb.2015.11.074",

language = "English",

volume = "753",

pages = "103--109",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

}

TY - JOUR

T1 - Measurement of the branching fraction for psi(3770) -> gamma chi c0

AU - Ablikim, M.

AU - Achasov, M.N.

AU - Ai, X.C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D.J.

AU - Amoroso, A.

AU - Haddadi, Z.

AU - Kalantar-Nayestanaki, N.

AU - Kavatsyuk, M.

AU - Loehner, H.

AU - Messchendorp, J.G.

AU - Tiemens, M.

AU - BESIII Collaboration

PY - 2016/2/10

Y1 - 2016/2/10

N2 - By analyzing a data set of 2.92 fb(-1) of e(+) e(-) collision data taken at root s = 3.773 GeVand 106.41 x 10(6) psi(3686) decays taken at root s = 3.686 GeVwith the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for psi(3770)->gamma chi c0 to be B(psi(3770)->gamma chi c0) = (6.88 +/- 0.28 +/- 0.67) x 10(-3) and Gamma[psi(3770)->gamma chi c0] = (187 +/- 8 +/- 19) keV, respectively. These are the most precise measurements to date. (C) 2015 The Authors. Published by Elsevier B.V.

AB - By analyzing a data set of 2.92 fb(-1) of e(+) e(-) collision data taken at root s = 3.773 GeVand 106.41 x 10(6) psi(3686) decays taken at root s = 3.686 GeVwith the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for psi(3770)->gamma chi c0 to be B(psi(3770)->gamma chi c0) = (6.88 +/- 0.28 +/- 0.67) x 10(-3) and Gamma[psi(3770)->gamma chi c0] = (187 +/- 8 +/- 19) keV, respectively. These are the most precise measurements to date. (C) 2015 The Authors. Published by Elsevier B.V.

KW - CROSS-SECTIONS

KW - HEAVY QUARKONIUM

KW - FINAL-STATES

KW - MONTE-CARLO

KW - TRANSITIONS

KW - DECAY

KW - MASS

U2 - 10.1016/j.physletb.2015.11.074

DO - 10.1016/j.physletb.2015.11.074

M3 - Article

SN - 0370-2693

VL - 753

SP - 103

EP - 109

JO - Physics Letters B

JF - Physics Letters B

ER -

Measurement of the branching fraction for psi(3770) -> gamma chi c0

Abstract

Keywords

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