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Title: Observation of a Near-Threshold Enhancement in the {omega}{phi} Mass Spectrum from the Doubly OZI-Suppressed Decay J/{psi}{yields}{gamma}{omega}{phi}

Abstract

An enhancement near threshold is observed in the {omega}{phi} invariant mass spectrum from the doubly Okubo-Zweig-Iizuka-suppressed decays of J/{psi}{yields}{gamma}{omega}{phi}, based on a sample of 5.8x10{sup 7} J/{psi} events collected with the BESII detector. A partial wave analysis shows that this enhancement favors J{sup P}=0{sup +}, and its mass and width are M=1812{sub -26}{sup +19}(stat){+-}18(syst) MeV/c{sup 2} and {gamma}=105{+-}20(stat){+-}28(syst) MeV/c{sup 2}. The product branching fraction is determined to be B(J/{psi}{yields}{gamma}X)B(X{yields}{omega}{phi})=[2.61{+-}0.27(stat){+-}0.65(syst)]x= 10{sup -4}.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Institute of High Energy Physics, Beijing 100049 (China) (and others)
Publication Date:
OSTI Identifier:
20775179
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 16; Other Information: DOI: 10.1103/PhysRevLett.96.162002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; HADRONIC PARTICLE DECAY; J PSI-3097 MESONS; MASS SPECTRA; MEV RANGE 100-1000; PARTIAL WAVES; QUANTUM CHROMODYNAMICS

Citation Formats

Ablikim, M., Bai, J.Z., Bian, J.G., Cai, X., Chen, H.S., Chen, H.X., Chen, J.C., Chen Jin, Chen, Y.B., Chu, Y.P., Cui, X.Z., Deng, Z.Y., Du, S.X., Fang, J., Fu, C.D., Gao, C.S., Gu, S.D., Guo, Y.N., Guo, Y.Q., and He, K.L. Observation of a Near-Threshold Enhancement in the {omega}{phi} Mass Spectrum from the Doubly OZI-Suppressed Decay J/{psi}{yields}{gamma}{omega}{phi}. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.162002.
Ablikim, M., Bai, J.Z., Bian, J.G., Cai, X., Chen, H.S., Chen, H.X., Chen, J.C., Chen Jin, Chen, Y.B., Chu, Y.P., Cui, X.Z., Deng, Z.Y., Du, S.X., Fang, J., Fu, C.D., Gao, C.S., Gu, S.D., Guo, Y.N., Guo, Y.Q., & He, K.L. Observation of a Near-Threshold Enhancement in the {omega}{phi} Mass Spectrum from the Doubly OZI-Suppressed Decay J/{psi}{yields}{gamma}{omega}{phi}. United States. doi:10.1103/PhysRevLett.96.162002.
Ablikim, M., Bai, J.Z., Bian, J.G., Cai, X., Chen, H.S., Chen, H.X., Chen, J.C., Chen Jin, Chen, Y.B., Chu, Y.P., Cui, X.Z., Deng, Z.Y., Du, S.X., Fang, J., Fu, C.D., Gao, C.S., Gu, S.D., Guo, Y.N., Guo, Y.Q., and He, K.L. Fri . "Observation of a Near-Threshold Enhancement in the {omega}{phi} Mass Spectrum from the Doubly OZI-Suppressed Decay J/{psi}{yields}{gamma}{omega}{phi}". United States. doi:10.1103/PhysRevLett.96.162002.
@article{osti_20775179,
title = {Observation of a Near-Threshold Enhancement in the {omega}{phi} Mass Spectrum from the Doubly OZI-Suppressed Decay J/{psi}{yields}{gamma}{omega}{phi}},
author = {Ablikim, M. and Bai, J.Z. and Bian, J.G. and Cai, X. and Chen, H.S. and Chen, H.X. and Chen, J.C. and Chen Jin and Chen, Y.B. and Chu, Y.P. and Cui, X.Z. and Deng, Z.Y. and Du, S.X. and Fang, J. and Fu, C.D. and Gao, C.S. and Gu, S.D. and Guo, Y.N. and Guo, Y.Q. and He, K.L.},
abstractNote = {An enhancement near threshold is observed in the {omega}{phi} invariant mass spectrum from the doubly Okubo-Zweig-Iizuka-suppressed decays of J/{psi}{yields}{gamma}{omega}{phi}, based on a sample of 5.8x10{sup 7} J/{psi} events collected with the BESII detector. A partial wave analysis shows that this enhancement favors J{sup P}=0{sup +}, and its mass and width are M=1812{sub -26}{sup +19}(stat){+-}18(syst) MeV/c{sup 2} and {gamma}=105{+-}20(stat){+-}28(syst) MeV/c{sup 2}. The product branching fraction is determined to be B(J/{psi}{yields}{gamma}X)B(X{yields}{omega}{phi})=[2.61{+-}0.27(stat){+-}0.65(syst)]x= 10{sup -4}.},
doi = {10.1103/PhysRevLett.96.162002},
journal = {Physical Review Letters},
number = 16,
volume = 96,
place = {United States},
year = {Fri Apr 28 00:00:00 EDT 2006},
month = {Fri Apr 28 00:00:00 EDT 2006}
}