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Partonic transverse momenta in soft collisions

Khoze, V.A.; Martin, A.D.; Ryskin, M.G.

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V.A. Khoze

A.D. Martin

M.G. Ryskin


The partonic transverse momentum, kt , distribution plays a crucial role in driving high-energy hadron interactions. If kt is limited we have old fashioned Regge theory. If kt increases with energy the interaction may be described by perturbative QCD. We use BFKL diffusion in lnkt , supplemented by a stronger absorption of low kt partons, to estimate the growth of the mean transverse momenta ⟨kt⟩ with energy. This growth reveals itself in the distribution of secondaries produced at the collider energies. We present a simple, BFKL-based, model to demonstrate the possible size of the effect. Moreover, we propose a way to evaluate experimentally the shape of the parton transverse momenta distribution by studying the spectra of the ( D or B ) mesons which contain one heavy quark.


Khoze, V., Martin, A., & Ryskin, M. (2014). Partonic transverse momenta in soft collisions. The European Physical Journal C, 74(12), Article 3199.

Journal Article Type Article
Acceptance Date Nov 22, 2014
Online Publication Date Dec 12, 2014
Publication Date Dec 31, 2014
Deposit Date Apr 16, 2019
Publicly Available Date Apr 16, 2019
Journal European Physical Journal C: Particles and Fields
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 74
Issue 12
Article Number 3199


Published Journal Article (329 Kb)

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Copyright Statement
© The Author(s) 2014. <br /> This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0.

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