Journal
PHYSICAL REVIEW C
Volume 108, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.108.045203
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ALICE measures the production cross section of inclusive J/psi pairs in pp collisions at 13 TeV, reporting a value of 10.3 +/- 2.3 (stat.) +/- 1.3 (syst.) nb for a specific kinematic interval. The contribution from nonprompt J/psi is evaluated, and the effective double-parton scattering cross section is computed.
The production cross section of inclusive J/psi pairs in pp collisions at a center-of-mass energy root s = 13 TeV is measured with ALICE. The measurement is performed for J/psi in the rapidity interval 2.5 < y < 4.0 and for transverse momentum p(T) > 0. The production cross section of inclusive J/psi pairs is reported to be 10.3 +/- 2.3 (stat.) +/- 1.3 (syst.) nb in this kinematic interval. The contribution from nonprompt J/psi (i.e., originated from beauty-hadron decays) to the inclusive sample is evaluated. The effective double-parton scattering cross section is computed, neglecting the single-parton scattering contribution.
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