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Updated: Jul 11, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 16, 2013
Onset of asymptotic scaling in deuteron photodisintegration
P Rossi1, M Mirazita, F Ronchetti
1Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, PO 13, 00044 Frascati, Italy.
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(gamma,p)n differential cross section for photon energies above 0.5 GeV and center-of-mass proton angles between 30 degrees and 150 degrees. 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 P(T). 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.
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