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Restrictions on pp scattering amplitude imposed by first diffraction minimum data obtained by TOTEM at LHC. / Kovalenko, V.; Putchkov, A.; Vechernin, V.; Diatchenko, D.
Proceedings of the International Conference Days on Diffraction, DD 2015, St. Petersburg, Russian Federation, 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 165-169.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Restrictions on pp scattering amplitude imposed by first diffraction minimum data obtained by TOTEM at LHC
AU - Kovalenko, V.
AU - Putchkov, A.
AU - Vechernin, V.
AU - Diatchenko, D.
PY - 2015
Y1 - 2015
N2 - We present systematic analysis of the behavior of elastic pp scattering cross section in the region of the diffraction peak and the first diffraction minimum in the framework of quasi-eikonal Gribov-Regge approach, taking into account the unitarity condition. We use the formalism taking into consideration the dependence of pomeron signature factor on t. We show that although in this approach one can describe the general features of pp scattering, the behavior of pp elastic differential cross section in the vicinity of the first diffraction minimum measured by the TOTEM experiment at LHC can not be reproduced under any parameter values at standard assumptions of the model. Physically, in the quasi-eikonal Regge approach the proton proved to be “gray” and rather large, whereas the TOTEM data indicate that it is smaller and closer to “black” at LHC energies.
AB - We present systematic analysis of the behavior of elastic pp scattering cross section in the region of the diffraction peak and the first diffraction minimum in the framework of quasi-eikonal Gribov-Regge approach, taking into account the unitarity condition. We use the formalism taking into consideration the dependence of pomeron signature factor on t. We show that although in this approach one can describe the general features of pp scattering, the behavior of pp elastic differential cross section in the vicinity of the first diffraction minimum measured by the TOTEM experiment at LHC can not be reproduced under any parameter values at standard assumptions of the model. Physically, in the quasi-eikonal Regge approach the proton proved to be “gray” and rather large, whereas the TOTEM data indicate that it is smaller and closer to “black” at LHC energies.
U2 - 10.1109/DD.2015.7354853
DO - 10.1109/DD.2015.7354853
M3 - Conference contribution
SN - 978-1-4673-8630-2
SP - 165
EP - 169
BT - Proceedings of the International Conference Days on Diffraction, DD 2015, St. Petersburg, Russian Federation, 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 Days on Diffraction Аnnual international conference
Y2 - 24 May 2015 through 28 May 2015
ER -
ID: 3954883