Dependence on the Identification of the Scale Energy Parameter Q 2 in the Quark Distribution Functions for a DIS Production of Za

  • M. Gómez-Bock Institute of Physics, Meritorious Autonomous University of Puebla (BUAP), PO Box J-48, 52570 Puebla, Mexico.
  • W. Gonzalez Institute of Physics, Meritorious Autonomous University of Puebla (BUAP), PO Box J-48, 52570 Puebla, Mexico.
  • L. López Lozano Academic area of Mathematics and Physics. Hidalgo State Autonomous University. Kilometer 4.5 Pachuca-Tulancingo highway. 42184 Pachuca, Hidalgo. México.
  • S. Rosado-Navarro Faculty of Physical Mathematical Sciences, Meritorious Autonomous University of Puebla (BUAP), PO Box 1364, 72000 Puebla, Mexico.
  • A. Rosado Institute of Physics, Meritorious Autonomous University of Puebla (BUAP), PO Box J-48, 52570 Puebla, Mexico.
Keywords: Bosonic Production, Deep inelastic scattering, Momentum Transferred, Parton Distribution Function, Parton Model

Abstract

We discuss the Z-production in a DIS (Deep Inelastic Scattering) process e + p → e + Z + X using the Parton Model, within the context of the Standard Model. In contrast with deep inelastic eP-scattering (e + p → e + X), where the choice of Q2, as the transferred momentum squared, is unambiguous; whereas in the case of boson production , the transferred momentum squared, at quark level, depends on the reaction mechanism (where is the EW interaction taking place). We suggest a proposal based on kinematics of the process considered and the usual criterion for Q2 , which leads to a simple and practical prescription to calculate Z-production via ep-DIS. We also introduce different options in order o perform the convolution of the parton distribution functions (PDFs) and the scattering amplitude of he quark processes. Our aim in this work is to analyze and show how large could be the dependence of the total cross section rates on different possible prescriptions used for the identification of the scale energy parameter Q2 . We present results for the total cross section as a function of the total energy √s of the system ep, in the range 300 <√s ≤ 1300 GeV

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Published
2018-08-06
How to Cite
(1)
M. Gómez-Bock; W. Gonzalez; L. López Lozano; S. Rosado-Navarro; A. Rosado. Dependence on the Identification of the Scale Energy Parameter Q 2 in the Quark Distribution Functions for a DIS Production of Za. J. Nucl. Phy. Mat. Sci. Rad. A. 2018, 6, 27-32.
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Articles