Study of hc(1P1) at BESIII

Bian Jianming

doi:10.1063/1.3483345

Study of h_c(¹P₁) at BESIII

Bian Jianming

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Inclusive measurements of the spin-singlet P-wave state of charmonium hc(1P1) have been performed with a sample of approximately 106 millionψ(2S) decays collected with the BESIII detector at the BEPCII electron-positron storage ring. We fitted distributions of the mass recoiling against the π⁰ in the decay ψ(2S)→π⁰h_c both inclusively and with a tag of the E1-transition photon from h _c→γh_c to obtain the following preliminary results: M(h_c) = 3525:16±0:16(stat:) MeV; Γ(h _c) = 0:89±0:57(stat:) MeV; B(ψ(2S) →π⁰h_c) = (8:42±1:29(stat:)×10 ^-4; B(ψ(2S) →π⁰h_c)×B(h _c→γη_c) = (4:69±0:48(stat:) ×10^-4; and B(h_c→γη_c) = (55:7±6:3(stat:))%:

Original language	English (US)
Title of host publication	Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy
Pages	336-340
Number of pages	5
DOIs	https://doi.org/10.1063/1.3483345
State	Published - 2010
Externally published	Yes
Event	13th International Conference on Hadron Spectroscopy, Hadron 2009 - Tallahassee, FL, United States Duration: Nov 29 2009 → Dec 4 2009

Publication series

Name	AIP Conference Proceedings
Volume	1257
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	13th International Conference on Hadron Spectroscopy, Hadron 2009
Country/Territory	United States
City	Tallahassee, FL
Period	11/29/09 → 12/4/09

Keywords

BEPCII/BESIII experiment
H(P)
Inclusive measurement

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10.1063/1.3483345

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Cite this

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title = "Study of hc(1P1) at BESIII",

abstract = "Inclusive measurements of the spin-singlet P-wave state of charmonium hc(1P1) have been performed with a sample of approximately 106 millionψ(2S) decays collected with the BESIII detector at the BEPCII electron-positron storage ring. We fitted distributions of the mass recoiling against the π0 in the decay ψ(2S)→π0hc both inclusively and with a tag of the E1-transition photon from h c→γhc to obtain the following preliminary results: M(hc) = 3525:16±0:16(stat:) MeV; Γ(h c) = 0:89±0:57(stat:) MeV; B(ψ(2S) →π0hc) = (8:42±1:29(stat:)×10 -4; B(ψ(2S) →π0hc)×B(h c→γηc) = (4:69±0:48(stat:) ×10-4; and B(hc→γηc) = (55:7±6:3(stat:))%:",

keywords = "BEPCII/BESIII experiment, H(P), Inclusive measurement",

author = "Bian Jianming",

year = "2010",

doi = "10.1063/1.3483345",

language = "English (US)",

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series = "AIP Conference Proceedings",

pages = "336--340",

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AU - Jianming, Bian

PY - 2010

Y1 - 2010

N2 - Inclusive measurements of the spin-singlet P-wave state of charmonium hc(1P1) have been performed with a sample of approximately 106 millionψ(2S) decays collected with the BESIII detector at the BEPCII electron-positron storage ring. We fitted distributions of the mass recoiling against the π0 in the decay ψ(2S)→π0hc both inclusively and with a tag of the E1-transition photon from h c→γhc to obtain the following preliminary results: M(hc) = 3525:16±0:16(stat:) MeV; Γ(h c) = 0:89±0:57(stat:) MeV; B(ψ(2S) →π0hc) = (8:42±1:29(stat:)×10 -4; B(ψ(2S) →π0hc)×B(h c→γηc) = (4:69±0:48(stat:) ×10-4; and B(hc→γηc) = (55:7±6:3(stat:))%:

AB - Inclusive measurements of the spin-singlet P-wave state of charmonium hc(1P1) have been performed with a sample of approximately 106 millionψ(2S) decays collected with the BESIII detector at the BEPCII electron-positron storage ring. We fitted distributions of the mass recoiling against the π0 in the decay ψ(2S)→π0hc both inclusively and with a tag of the E1-transition photon from h c→γhc to obtain the following preliminary results: M(hc) = 3525:16±0:16(stat:) MeV; Γ(h c) = 0:89±0:57(stat:) MeV; B(ψ(2S) →π0hc) = (8:42±1:29(stat:)×10 -4; B(ψ(2S) →π0hc)×B(h c→γηc) = (4:69±0:48(stat:) ×10-4; and B(hc→γηc) = (55:7±6:3(stat:))%:

KW - BEPCII/BESIII experiment

KW - H(P)

KW - Inclusive measurement

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