Results are presented on the difference in R, the ratio of longitudinally to transversely polarised virtual photon absorption cross sections, for the deuteron and the proton. They are obtained by comparing the ratio of cross sections for the deep inelastic scattering of muons from deuterium and hydrogen targets at 90 and 280 GeV incident energy. The results cover the range x = 0.01 -0.30, at an average Q2 of 9 GeV2. The measured difference R(d)-R(p) shows no significant x dependence and is compatible with zero, as well as with expectations from perturbative QCD. We use the same method to obtain the difference R(Ca)-R(C) from cross section ratios measured on carbon and calcium targets at 90 and 200 GeV incident energy.

Measurements of Rd-rp and Rca-rc In Deep Inelastic Muon Scattering

PERONI, Cristiana;
1992-01-01

Abstract

Results are presented on the difference in R, the ratio of longitudinally to transversely polarised virtual photon absorption cross sections, for the deuteron and the proton. They are obtained by comparing the ratio of cross sections for the deep inelastic scattering of muons from deuterium and hydrogen targets at 90 and 280 GeV incident energy. The results cover the range x = 0.01 -0.30, at an average Q2 of 9 GeV2. The measured difference R(d)-R(p) shows no significant x dependence and is compatible with zero, as well as with expectations from perturbative QCD. We use the same method to obtain the difference R(Ca)-R(C) from cross section ratios measured on carbon and calcium targets at 90 and 200 GeV incident energy.
1992
294
120
126
http://dx.doi.org/10.1016/0370-2693(92)91650-X
HIGH STATISTICS MEASUREMENT; R=SIGMA-L/SIGMA-T; HIGH Q2
P. AMAUDRUZ;M. ARNEODO;A. ARVIDSON;B. BADELEK;G. BAUM;J. BEAUFAYS;I. G. BIRD;M. BOTJE;C. BROGGINI;W. BRUCKNER;A. BRULL;W. J. BURGER;J. CIBOROWSKI;R. VANDANTZIG;H. DOBBELING;J. DOMINGO;J. DRINKARD;H. ENGELIEN;M. I. FERRERO;L. FLURI;P. GRAFSTROM;T. GRANIER;D. VONHARRACH;M. VANDERHEIJDEN;C. HEUSCH;Q. INGRAM;K. JANSONPRYTZ;M. DEJONG;E. M. KABUSS;R. KAISER;T. J. KETEL;F. KLEIN;B. KORZEN;U. KRUNER;S. KULLANDER;U. LANDGRAF;F. LETTENSTROM;T. LINDQVIST;G. K. MALLOT;C. MARIOTTI;G. VANMIDDELKOOP;A. MILSZTAJN;Y. MIZUNO;J. NASSALSKI;D. NOWOTNY;N. PAVEL;C. PERONI;H. PESCHEL;B. POVH;R. RIEGER;K. RITH;K. ROHRICH;E. RONDIO;L. ROPELEWSKI;A. SANDACZ;C. SCHOLZ;R. SCHUMACHER;U. SENNHAUSER;F. SEVER;T. A. SHIBATA;M. SIEBLER;A. SIMON;A. STAIANO;G. TAYLOR;M. TREICHEL;M. VIRCHAUX;J. L. VUILLEUMIER;T. WALCHER;R. WINDMOLDERS;F. ZETSCHE
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/109505
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