"Onset of asymptotic scaling in deuteron photodisintegration" by P. Rossi, Angela Biselli et al.
 

Document Type

Article

Article Version

Publisher's PDF

Publication Date

2005

Abstract

We investigate the transition from the nucleon-meson to the quark-gluon description of the strong interaction using the photon energy dependence of the d(γ,p)n differential cross section for photon energies above 0.5 GeV and center-of-mass proton angles between 30° and 150°. A possible signature for this transition is the onset of cross-section s-11 scaling with the total energy squared, s, at some proton transverse momentum PT. The results show that the scaling has been reached for proton transverse momentum above about 1.1  GeV/c. This may indicate that the quark-gluon regime is reached above this momentum.

Comments

Copyright American Physical Society 2005.

Final publisher version also available at http://prl.aps.org/abstract/PRL/v94/i1/e012301

Publication Title

Physical Review Letters

Published Citation

P. Rossi et al. [CLAS Collaboration], "Onset of asymptotic scaling in deuteron photodis- integration", Phys. Rev. Lett. 94, 012301 (2005) 10.1103/PhysRevLett.94.012301

DOI

10.1103/PhysRevLett.94.012301

Peer Reviewed

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