Study of the hadronic decays of {chi}{sub c} states
- Institute of High Energy Physics, Beijing 100039, Peoples Republic of (China)
- California Institute of Technology, Pasadena, California 91125 (United States)
- Colorado State University, Fort Collins, Colorado 80523 (United States)
- Hangzhou University, Hangzhou 310028, Peoples Republic of (China)
Hadronic decays of the {ital P}-wave spin-triplet charmonium states {chi}{sub cJ}(J=0,1,2) are studied using a sample of {psi}(2S) decays collected by the BES detector operating at the BEPC storage ring. Branching fractions for the decays {chi}{sub c1}{r_arrow}K{sub S}{sup 0}K{sup +}{pi}{sup {minus}}+c.c., {chi}{sub c0}{r_arrow}K{sub S}{sup 0}K{sub S}{sup 0}, {chi}{sub c2}{r_arrow}K{sub S}{sup 0}K{sub S}{sup 0}, {chi}{sub c0}{r_arrow}{phi}{phi}, {chi}{sub c2}{r_arrow}{phi}{phi} and {chi}{sub cJ}{r_arrow}K{sup +}K{sup {minus}}K{sup +}K{sup {minus}} are measured for the first time, and those for {chi}{sub cJ}{r_arrow}{pi}{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup {minus}}, {chi}{sub cJ}{r_arrow}{pi}{sup +}{pi}{sup {minus}}K{sup +}K{sup {minus}}, {chi}{sub cJ}{r_arrow}{pi}{sup +}{pi}{sup {minus}}p{bar p} and {chi}{sub cJ}{r_arrow}3({pi}{sup +}{pi}{sup {minus}}) are measured with improved precision. In addition, we determine the masses of the {chi}{sub c0} and {eta}{sub c} to be M{sub {chi}{sub c0}}=3414.1{plus_minus}0.6(stat){plus_minus}0.8(syst) MeV and M{sub {eta}{sub c}}=2975.8{plus_minus}3.9(stat){plus_minus}1.2(syst) MeV. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 698883
- Journal Information:
- Physical Review, D, Vol. 60, Issue 7; Other Information: PBD: Oct 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study of the {chi}{sub c0}(1P{sub 0}{number_sign}3) State of Charmonium Formed in {bar p}{number_sign}
Study of the {ital P }-Wave Charmonium State {ital {chi}}{sub {ital cJ}} in {ital {psi}}(2{ital S}) Decays