Measurement of prompt D+ and Ds+ production in pPb collisions at sNN = 5.02 TeV

• Published in: The journal of high energy physics 2024-01, Vol.2024 (1), p.70
• Main Authors: Agapopoulou, C., Alessio, F., Aliouche, Z., Artamonov, A., Audurier, B., Barbetti, M., Barsuk, S., Becker, M., Belous, K., Bernet Andres, S., Bolognani, C. S., Brodzicka, J., Calefice, L., Caspary, R., Chadwick, A. J., Cholak, S., Collins, P., De Capua, S., De Cian, M., de Vries, J. A., Debernardis, F., Didenko, S., Eirea Orro, C., Ely, S., Fan, Y., Feng, M., Filippov, S., Fleuret, F., Forty, R., Gandelman, M., Gao, R., Garau, M., Garcia Plana, B., Gioventù, A., Gizdov, K., Guittiere, M., Guliaeva, V., Gushchin, E., Halvorsen, M. M., Hollitt, S. E., Hu, W., Huang, X., Ilin, D., Jones, T. P., Kopecna, R., Landesa Gomez, C., Lane, R., Langer, J., Lian, Z., Liu, K., Longstaff, I., Maciuc, F., Majewski, M. W., Malecki, B., Manca, G., Matev, R., Mauricio, J., Mazurek, M., McHugh, N. T., Monk, M., Mulder, M., Murta, R., Muzzetto, P., Nandakumar, R., O’Neil, R. H., Owen, P., Paolucci, L., Pappenheimer, C., Perazzini, S., Pham, H., Popov, D., Robbe, P., Romero Lamas, M., Rudolph, M. S., Saborido Silva, J. J., Sahoo, N., Saitta, B., Santoro, L., Satta, A., Scarabotto, A., Schertz, A. M., Serra, N., Shekhtman, L., Skidmore, N., Slater, M. W., Smith, M., Song, R., Souza De Almeida, F. L., Sriskaran, V., Stagni, F., Szumlak, T., Tong, X., Usachov, A., Uwer, U., Vazquez Regueiro, P., Venkateswaran, A., Williams, M. R. J., Witola, L., Xu, A., Zhu, X.
• Format: Article
• Language: English
• Subjects: Center of mass; Charm (particle physics); Classical and Quantum Gravitation; Collisions; Cross-sections; Elementary Particles; High energy physics; Large Hadron Collider; Luminosity; Mesons; Nucleons; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Experimental Physics; Relativity Theory; String Theory; Transverse momentum
• ISSN: 1029-8479
• DOI: 10.1007/JHEP01(2024)070

A bstract The production of prompt D + and D s + mesons is studied in proton-lead collisions at a centre-of-mass energy of s NN = 5 . 02 TeV. The data sample corresponding to an integrated luminosity of (1 . 58 ± 0 . 02)nb − 1 is collected by the LHCb experiment at the LHC. The differential production cross-sections are measured using D + and D s + candidates with transverse momentum in the range of 0 < p T < 14 GeV /c and rapidities in the ranges of 1 . 5 < y ∗ < 4 . 0 and –5 . 0 < y ∗ < –2 . 5 in the nucleon-nucleon centre-of-mass system. For both particles, the nuclear modification factor and the forward-backward production ratio are determined. These results are compared with theoretical models that include initial-state nuclear effects. In addition, measurements of the cross-section ratios between D + , D s + and D 0 mesons are presented, providing a baseline for studying the charm hadronization in lead-lead collisions at LHC energies.