Double parton scattering in p¯ p interactions at √s =1 .96TeV

Gogota, O. (2016) Double parton scattering in p¯ p interactions at √s =1 .96TeV. Il nuovo cimento C, 39 (4). pp. 1-7. ISSN 1826-9885

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We present the observation of doubly produced J/ψ mesons as an example of processes containing a substantial fraction of double parton scattering. Measurements of the production cross sections for singly and doubly-produced J/ψ mesons were done with the D0 detector at Fermilab in p¯ p collisions at√s =1 .96TeV with an integrated luminosity of 8.1fb−1. For the first time, the double J/ψ production cross section is separated into two parts: contributions from both single and double parton scattering. This separation allowed us to determine the effective cross section σeff, a parameter related to the parton spatial density inside the hadron.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 16 Nov 2020 20:14
Last Modified: 16 Nov 2020 20:14

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