Study of the P-wave charmonium state χcJ in ψ/(2S) decays

被引：40

作者：

Bai, JZ ^{[1
]}

Bian, JG

Blum, I

Chai, ZW

Chen, GP

Chen, HF

Chen, J

Chen, JC

Chen, Y

Chen, YB

Chen, YQ

Cheng, BS

Cui, XZ

Ding, HL

Ding, LY

Dong, LY

Du, ZZ

Dunwoodie, W

Feng, S

Gao, CS

Cao, ML

Gao, SQ

Gratton, P

Gu, JH

Gu, SD

Gu, WX

Gu, YF

Guo, YN

Han, SW

Han, Y

Harris, FA

He, J

He, JT

He, M

Hitlin, DG

Hu, GY

Hu, HM

Hu, JL

Hu, QH

Hu, T

Hu, XQ

Huang, JD

Huang, YZ

Izen, JM

Jiang, CH

Jin, Y

Ke, ZJ

Kelsey, MH

Kim, BK

Kong, D

机构：

[1] Inst High Energy Phys, Beijing 100039, Peoples R China

[2] CALTECH, Pasadena, CA 91125 USA

[3] Colorado State Univ, Ft Collins, CO 80523 USA

[4] Hangzhou Univ, Hangzhou 310028, Peoples R China

[5] Shandong Univ, Jinan 250100, Peoples R China

[6] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China

[7] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

[8] Univ Hawaii, Honolulu, HI 96822 USA

[9] Univ Calif Irvine, Irvine, CA 92717 USA

[10] Univ Sci & Technol China, Hefei 230026, Peoples R China

[11] Univ Texas, Richardson, TX 75083 USA

[12] CCAST, World Lab, Beijing 100080, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.81.3091

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The processes psi(2S) --> gamma pi(+)pi(-), gamma K+K-, and gamma p (p) over bar have been studied using a sample of 3.79 x 10(6) psi(2S) decays. We determine the total width of the chi(c0) to be Gamma(chi c0)(tot) = 14.3 +/- 2.0 +/- 3.0 MeV. We present the first measurement of the branching fraction B(chi(c0) --> p (p) over bar) = (15.9 1 4.3 i 5.3) x 10(-5) where the first error is statistical and the second one is systematic. Branching fractions of chi(c0,2) --> pi(+)pi(-) and K+K- are also reported. [S0031-9007(98)07355-4].

引用

页码：3091 / 3095

页数：5

共 13 条

[11] QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)
Huang, HW
Chao, KT
[J]. PHYSICAL REVIEW D, 1996, 54 (11): : 6850 - 6854
[12] SPIN TESTS FOR INTERMEDIATE STATES IN RADIATIVE PSI'(3684) DECAY CHAINS
KABIR, PK
HEY, AJG
[J]. PHYSICAL REVIEW D, 1976, 13 (11): : 3161 - 3163
[13] AN UPDATE ON X(C) DECAYS - PERTURBATIVE QCD VERSUS DATA
MANGANO, ML
PETRELLI, A
[J]. PHYSICS LETTERS B, 1995, 352 (3-4) : 445 - 450

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