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Charged Particles Pair Production in pp Scattering: Survival Factor and Semi-Inclusive Processes

  • PHYSICS OF ELEMENTARY PARTICLES AND ATOMIC NUCLEI. THEORY
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Abstract

We discuss lepton pair production in \(pp\) scattering at the LHC. In particular we consider quasielastic processes (when both protons survive) and partially inelastic processes (when one proton disintegrates). We provide semi-analytical formulae for both cases so it is possible to calculate the cross section for the semi-inclusive process – when at least one proton have to be registered in forward detectors.

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Notes

  1. In [7], the Dirac form factor squared was used instead of \(D({{Q}^{2}})\). It leads to underestimation of the magnetic form factor contribution.

  2. Variation of \({{m}_{q}}\) from \(200\) to \(400\) MeV changes the cross sections presented in Eqs. (11), (12) by less than 1%. Therefore we neglect the uncertainty due to the choice of the quark mass.

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ACKNOWLEDGMENTS

I am grateful to the organizers for the opportunity to participate in this incredible conference. I will cherish very warm memories of the conference and of V.A. Rubakov, a great man and physicist, whom I have seen in Dubna, sadly, for the last time.

Funding

The Author is supported by RSF grant no. 19-12-00123-P.

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  1. Tamm Department of Theoretical Physics, Lebedev Physical Institute, 119991, Moscow, Russia

    S. I. Godunov

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  1. S. I. Godunov
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Correspondence to S. I. Godunov.

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Godunov, S.I. Charged Particles Pair Production in pp Scattering: Survival Factor and Semi-Inclusive Processes. Phys. Part. Nuclei Lett. 20, 351–354 (2023). https://doi.org/10.1134/S1547477123030329

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  • DOI: https://doi.org/10.1134/S1547477123030329

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