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18 papers · 2 filters
Fate of k_perp-factorization for hard processes in nuclear environment
N. N. Nikolaev
Large thickness of heavy nuclei brings in a new scale into the pQCD description of hard processes in nuclear environment. The familiar linear -factorization breaks down…
The radiative decays in the molecular model for the scalar mesons
Yu. S. Kalashnikova, A. E. Kudryavtsev, A. V. Nefediev +2
We investigate the radiative decays of the meson to the scalar mesons and . We demonstrate that, contrary to earlier claims, these decays should be of the…
Near threshold enhancement of the ppbar mass spectrum in J/Psi decay
A. Sibirtsev, J. Haidenbauer, S. Krewald +2
We investigate the nature of the near-threshold enhancement in the ppbar invariant mass spectrum of the reaction J/Psi -> gamma ppbar reported recently by the BES Collaboration. Us…
Infrared regularization for spin-1 fields
Peter C. Bruns, Ulf-G. Meißner
We extend the method of infrared regularization to spin-1 fields. As applications, we discuss the chiral extrapolation of the rho meson mass from lattice QCD data and the pion-rho…
Breaking of k_\perp-factorization for Single Jet Production off Nuclei
N. N. Nikolaev, W. Schäfer
The linear k_\perp-factorization is part and parcel of the pQCD description of high energy hard processes off free nucleons. In the case of heavy nuclear targets the very concept o…
Remarks on the parity determination of narrow resonances
C. Hanhart, J. Haidenbauer, K. Nakayama +1
Recently several proposals were put forward to determine the parity of narrow baryonic resonances, in particular the . In these proceedings we will briefly comment on the gene…