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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2002, Volume 76, Issue 4, Pages 231–235
(Mi jetpl2891)
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This article is cited in 9 scientific papers (total in 9 papers)
FIELDS, PARTICLES, AND NUCLEI
Saturation of nuclear partons: the fermi statistics or nuclear opacity?
N. N. Nikolaevab, W. Schäferc, B. G. Zakharovb, V. R. Zollerd a Institute f. Kernphysik, Forschungszentrum Jülich
b Landau Institute for Theoretical Physics, Russian Academy of Sciences
c NORDITA
d Institute for Theoretical and Experimental Physics (Russian Federation State Scientific Center), Moscow
Abstract:
We derive the two-plateau momentum distribution of final state (FS) quarks produced in deep inelastic scattering (DIS) off nuclei in the saturation regime. The diffractive plateau which dominates for small $p$ measures precisely the momentum distribution of quarks in the beam photon, the rôle of the nucleus is simply to provide an opacity. The plateau for truly inelastic DIS exhibits a substantial nuclear broadening of the FS momentum distribution. We discuss the relationship between the FS quark densities and the properly defined initial state (IS) nuclear quark densities.The Weizsäcker-Williams glue of a nucleus exhibits a substantial nuclear dilution, still soft IS nuclear sea saturates because of the anti-collinear splitting of gluons into sea quarks.
Received: 10.07.2002
Citation:
N. N. Nikolaev, W. Schäfer, B. G. Zakharov, V. R. Zoller, “Saturation of nuclear partons: the fermi statistics or nuclear opacity?”, Pis'ma v Zh. Èksper. Teoret. Fiz., 76:4 (2002), 231–235; JETP Letters, 76:4 (2002), 195–200
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https://www.mathnet.ru/eng/jetpl2891 https://www.mathnet.ru/eng/jetpl/v76/i4/p231
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Abstract page: | 129 | Full-text PDF : | 44 | References: | 44 |
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