Abstract
A Born-approximation calculation of the direct photon spectrum for $x\ensuremath{\lesssim}1$ in the inclusive decay $\frac{J}{\ensuremath{\psi}}\ensuremath{\rightarrow}\ensuremath{\gamma}+\mathrm{hadrons}$ is given in the framework of the QCD multipole expansion in which bound-state contributions to the intermediate states are taken into account. The obtained photon spectrum in the $x\ensuremath{\lesssim}1$ region is quite close to the experimental data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
