• Open Access

Energy evolution and the Bose-Einstein enhancement for double parton densities

E. Gotsman and E. Levin
Phys. Rev. D 99, 054015 – Published 22 March 2019

Abstract

In this paper we show that Bose-Einstein enhancement generates strong correlations which, in the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution, increase with energy. This increase leads to double gluon densities (Φ), which are much larger than the product of the single gluon densities (ϕ). However, numerically, it turns out that the ratio Φ/ϕ2(1/x)δ2 with δ2α¯S/(Nc21)2/31, and so we do not expect a large correction for the experimentally accessible range of energies. However, for Nc=3, δ2=0.07ΔBFKL, where ΔBFKL denotes the intercept of the BFKL Pomeron, and thus we can anticipate a substantial increase for the range of rapidities Y20. We show that all 1/(Nc21) corrections to the double gluon densities stem from Bose-Einstein enhancement.

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  • Received 30 August 2018

DOI:https://doi.org/10.1103/PhysRevD.99.054015

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

E. Gotsman1,* and E. Levin1,2,†

  • 1Department of Particle Physics, School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Science, Tel Aviv University, Tel Aviv 69978, Israel
  • 2Departemento de Física, Universidad Técnica Federico Santa María, and Centro Científico- Tecnológico de Valparaíso, avenida Espana 1680, Casilla 110-V, Valparaíso, Chile

  • *gotsman@post.tau.ac.il
  • leving@post.tau.ac.il, eugeny.levin@usm.cl

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Vol. 99, Iss. 5 — 1 March 2019

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