J Ψ decay lepton distribution in hadronic collisions

E. Mirkes, C. S. Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)


We propose the measurement of the decay angular distribution of leptons from J ψ's produced at high transverse momentum balanced by a photon [or gluon] in hadronic collisions. The polar and azimuthal angular distribution are calculated in the color singlet model (CSM). It is shown that the general structure of the decay lepton distribution is controlled by four invariant structure functions, which are functions of the transverse momentum and the rapidity of the J ψ. We found that two of these structure functions [the longitudinal and transverse interference structure functions] are identical in the CSM. We present analytical and numerical results in the Collins-Soper and in the Gottfried-Jackson frame.

Original languageEnglish
Pages (from-to)124-128
Number of pages5
JournalPhysics Letters B
Issue number1-2
Publication statusPublished - 1995 Mar 2

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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