First observation of the decays {chi}{sub cJ}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}

Journal Article · Fri Dec 31 23:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.012006· OSTI ID:21503853

Ablikim, M; An, Z H; Bai, J Z; Berger, N; Bian, J M; Cai, X; Cao, G F; Cao, X X; Chang, J F; Chen, G; Chen, H S; Chen, J C; Chen, M L; Chen, Y; Chen, Y B; Chu, Y P; Dai, H L; Dai, J P; Deng, Z Y; Dong, L Y ^[1]

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1. Institute of High Energy Physics, Beijing 100049 (China)

We present a study of the P-wave spin-triplet charmonium {chi}{sub cJ} decays (J=0, 1, 2) into {pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}. The analysis is based on 106x10{sup 6} {psi}{sup '} decays recorded with the BESIII detector at the BEPCII electron positron collider. The decay into the {pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0} hadronic final state is observed for the first time. We measure the branching fractions B({chi}{sub c0}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0})=(3.34{+-}0.06{+-}0.44)x10{sup -3}, B({chi}{sub c1}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0})=(0.57{+-}0.03{+-}0.08)x10{sup -3}, and B({chi}{sub c2}{yields}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0}{pi}{sup 0})=(1.21{+-}0.05{+-}0.16)x10{sup -3}, where the uncertainties are statistical and systematical, respectively.

• OSTI ID: 21503853
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BOSONS
BRANCHING RATIO
CHARMONIUM
COLLISIONS
DECAY
DIMENSIONLESS NUMBERS
ELECTRON COLLISIONS
ELECTRON-POSITRON COLLISIONS
ELEMENTARY PARTICLES
HADRONS
MESONS
MULTIPLETS
P WAVES
PARTIAL WAVES
PARTICLE DECAY
PARTICLE PROPERTIES
PIONS
PIONS NEUTRAL
POSITRON COLLISIONS
PSEUDOSCALAR MESONS
QUARKONIUM
SPIN
TRIPLETS