A study of prompt charm-hadron pair production in proton-lead collisions at √sNN=8.16  TeV is performed using data corresponding to an integrated luminosity of about 30  nb−1, collected with the LHCb experiment. Production cross sections for different pairs of charm hadrons are measured and kinematic correlations between the two charm hadrons are investigated. This is the first measurement of associated production of two charm hadrons in proton-lead collisions. The results confirm the predicted enhancement of double parton scattering production in proton-lead collisions compared to the single parton scattering production.

Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at sNN =8.16 TeV / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 125:21(2020). [10.1103/PhysRevLett.125.212001]

Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at sNN =8.16 TeV

Capriotti, L.;Sarti, A.;Sciubba, A.;
2020

Abstract

A study of prompt charm-hadron pair production in proton-lead collisions at √sNN=8.16  TeV is performed using data corresponding to an integrated luminosity of about 30  nb−1, collected with the LHCb experiment. Production cross sections for different pairs of charm hadrons are measured and kinematic correlations between the two charm hadrons are investigated. This is the first measurement of associated production of two charm hadrons in proton-lead collisions. The results confirm the predicted enhancement of double parton scattering production in proton-lead collisions compared to the single parton scattering production.
2020
B physics, Hadron-Hadron scattering (experiments), Heavy quark production, Spectroscopy
01 Pubblicazione su rivista::01a Articolo in rivista
Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at sNN =8.16 TeV / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 125:21(2020). [10.1103/PhysRevLett.125.212001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1580103
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