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 pT > 0. The production cross section of inclusive J/G. 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.
Measurement of inclusive J/ψ pair production cross section in pp collisions at s=13 TeV
De Caro, A.;De Gruttola, D.;De Pasquale, S.;Dello Stritto, L.;Funicello, N.;Ricci, R.;Virgili, T.;
2023-01-01
Abstract
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 pT > 0. The production cross section of inclusive J/G. 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.