Measurement of ϒ production in pp collisions at √s = 13 TeV

The production cross-sections of ϒ(1S), ϒ(2S) and ϒ(3S) mesons in proton-proton collisions at √s = 13 TeV are measured with a data sample corresponding to an integrated luminosity of 277 ± 11 pb⁻¹ recorded by the LHCb experiment in 2015. The ϒ mesons are reconstructed in the decay mode ϒ → μ⁺μ⁻. The...

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Main Authors: Aaij, R. (Author), Adeva, B. (Author), Adinolfi, M. (Author), Ajaltouni, Z. (Author), Akar, S. (Author), Albrecht, J. (Author), Alessio, F. (Author), Alexander, M. (Author), Alfonso Albero, A. (Author), Ali, S. (Author), Alkhazov, G. (Author), Alvarez Cartelle, P. (Author), Alves, A. A (Author), Amato, S. (Author), Amerio, S. (Author), Amhis, Y. (Author), An, L. (Author), Anderlini, L. (Author), Andreassi, G. (Author), Andreotti, M. (Author), Andrews, J. E (Author), Appleby, R. B (Author), Archilli, F. (Author), d'Argent, P. (Author), Arnau Romeu, J. (Author), Artamonov, A. (Author), Artuso, M. (Author), Aslanides, E. (Author), Atzeni, M. (Author), Auriemma, G. (Author), Bachmann, S. (Author), Back, J. J (Author), Baesso, C. (Author), Baker, S. (Author), Balagura, V. (Author), Baldini, W. (Author), Baranov, A. (Author), Barlow, R. J (Author), Barsuk, S. (Author), Barter, W. (Author), Baryshnikov, F. (Author), Batozskaya, V. (Author), Battista, V. (Author), Bay, A. (Author), Beddow, J. (Author), Bedeschi, F. (Author), Bediaga, I. (Author), Beiter, A. (Author), Bel, L. J (Author), Beliy, N. (Author), Bellee, V. (Author), Belloli, N. (Author), Belous, K. (Author), Belyaev, I. (Author), Ben-Haim, E. (Author), Bencivenni, G. (Author), Benson, S. (Author), Beranek, S. (Author), Berezhnoy, A. (Author), Bernet, R. (Author), Berninghoff, D. (Author), Bertholet, E. (Author), Bertolin, A. (Author), Betancourt, C. (Author), Betti, F. (Author), Bettler, M. O (Author), van Beuzekom, M. (Author), Bezshyiko, Ia (Author), Bifani, S. (Author), Billoir, P. (Author), Birnkraut, A. (Author), Bizzeti, A. (Author), Bjørn, M. (Author), Blake, T. (Author), Blanc, F. (Author), Blusk, S. (Author), Bocci, V. (Author), Bondar, A. (Author), Bondar, N. (Author), Borghi, S. (Author), Borisyak, M. (Author), Borsato, M. (Author), Bossu, F. (Author), Boubdir, M. (Author), Bowcock, T. J V (Author), Bowen, E. (Author), Bozzi, C. (Author), Braun, S. (Author), Brodski, M. 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(Author), LHCB Collaboration (Author), Boettcher, Thomas Julian (Contributor), Craik, Daniel C (Contributor), Weisser, Constantin (Contributor), Williams, Michael (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor)
Format: Article
Language:English
Published: Springer Berlin Heidelberg, 2018-07-31T17:59:02Z.
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Description
Summary:The production cross-sections of ϒ(1S), ϒ(2S) and ϒ(3S) mesons in proton-proton collisions at √s = 13 TeV are measured with a data sample corresponding to an integrated luminosity of 277 ± 11 pb⁻¹ recorded by the LHCb experiment in 2015. The ϒ mesons are reconstructed in the decay mode ϒ → μ⁺μ⁻. The differential production cross-sections times the dimuon branching fractions are measured as a function of the ϒ transverse momentum, pT, and rapidity, y, over the range 0 < pT < 30 GeV/c and 2.0 < y < 4.5. The ratios of the cross-sections with respect to the LHCb measurement at √s = 8 TeV are also determined. The measurements are compared with theoretical predictions based on NRQCD.