Measurement of Ds ± production asymmetry in pp collisions at √s=7 and 8 TeV

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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A et al (show 90 more authors) , Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, I, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boente Garcia, O, Boettcher, T, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV ORCID: 0000-0002-3505-6915, Bowen, E, Bozzi, C, Braun, S, Brodski, M, Brodzicka, J, Brundu, D, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, Byczynski, W, Cadeddu, S and Cai, H (2018) Measurement of Ds ± production asymmetry in pp collisions at √s=7 and 8 TeV. Journal of High Energy Physics, 2018 (8). ISSN 1126-6708, 1029-8479

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Abstract

The inclusive D<inf>s</inf> ^± production asymmetry is measured in pp collisions collected by the LHCb experiment at centre-of-mass energies of s=7 and 8 TeV. Promptly produced D<inf>s</inf> ^± mesons are used, which decay as D<inf>s</inf> ^± → ϕπ^±, with ϕ → K⁺K⁻. The measurement is performed in bins of transverse momentum, p<inf>T</inf>, and rapidity, y, covering the range 2.5 < p<inf>T</inf>< 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero D<inf>s</inf> ^± production asymmetry is found with a significance of 3.3 standard deviations.[Figure not available: see fulltext.].

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	06 Sep 2018 14:13
Last Modified:	12 Jun 2025 01:25
DOI:	10.1007/JHEP08(2018)008
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3025686