Archivio Istituzionale della RicercaThe production of the charm-strange baryon Xi(0)(c) is measured for the first time at the LHC via its semileptonic decay into e(+) Xi(-) nu(e) in ppcollisions at root s = 7 TeV with the ALICE detector. The transverse momentum ( p(T)) differential cross section multiplied by the branching ratio is presented in the interval 1 < p(T)< 8 GeV/c at mid-rapidity, vertical bar y vertical bar < 0.5. The transverse momentum dependence of the Xi(0)(c) baryon production relative to the D-0 meson production is compared to predictions of event generators with various tunes of the hadronisation mechanism, which are found to underestimate the measured cross-section ratio.
First measurement of Ξc0 production in pp collisions at s=7 TeV / Acharya, S.; Adamová, D.; Adolfsson, J.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Bufalino, S.; Concas, M.; Grosa, F.; Ravasenga, I. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 781:(2018), pp. 8-19. [10.1016/j.physletb.2018.03.061]
First measurement of Ξc0 production in pp collisions at s=7 TeV
Agnello, M.;Bufalino, S.;Concas, M.;Grosa, F.;Ravasenga, I
2018
Abstract
The production of the charm-strange baryon Xi(0)(c) is measured for the first time at the LHC via its semileptonic decay into e(+) Xi(-) nu(e) in ppcollisions at root s = 7 TeV with the ALICE detector. The transverse momentum ( p(T)) differential cross section multiplied by the branching ratio is presented in the interval 1 < p(T)< 8 GeV/c at mid-rapidity, vertical bar y vertical bar < 0.5. The transverse momentum dependence of the Xi(0)(c) baryon production relative to the D-0 meson production is compared to predictions of event generators with various tunes of the hadronisation mechanism, which are found to underestimate the measured cross-section ratio.
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https://hdl.handle.net/11583/2711721
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