Abstract
The inclusive Ds ± 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 Ds ± mesons are used, which decay as Ds ± → ϕπ±, with ϕ → K+K−. The measurement is performed in bins of transverse momentum, pT, and rapidity, y, covering the range 2.5 < pT< 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero Ds ± production asymmetry is found with a significance of 3.3 standard deviations.[Figure not available: see fulltext.].
| Original language | English |
|---|---|
| Article number | 8 |
| Journal | Journal of High Energy Physics |
| Volume | 2018 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2018 |
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Keywords
- Charm physics
- Forward physics
- Hadron-Hadron scattering (experiments)
- Heavy quark production
- QCD
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Measurement of Ds ± production asymmetry in pp collisions at √s=7 and 8 TeV. / The LHCb Collaboration.
In: Journal of High Energy Physics, Vol. 2018, No. 8, 8, 01.08.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement of Ds ± production asymmetry in pp collisions at √s=7 and 8 TeV
AU - The LHCb Collaboration
AU - Aaij, R.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albicocco, P.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Alfonso Albero, A.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andreassi, G.
AU - Andreotti, M.
AU - Andrews, J. E.
AU - Appleby, R. B.
AU - Archilli, F.
AU - d’Argent, P.
AU - Arnau Romeu, J.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Auriemma, G.
AU - Bachmann, S.
AU - Back, J. J.
AU - Baker, S.
AU - Balagura, V.
AU - Baldini, W.
AU - Baranov, A.
AU - Barlow, R. J.
AU - Barsuk, S.
AU - Barter, W.
AU - Baryshnikov, F.
AU - Batozskaya, V.
AU - Battista, V.
AU - Bay, A.
AU - Beddow, J.
AU - Bedeschi, F.
AU - Mazurov, A.
AU - Petrov, A.
AU - Strokov, S.
AU - Vagner, A.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - The inclusive Ds ± 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 Ds ± mesons are used, which decay as Ds ± → ϕπ±, with ϕ → K+K−. The measurement is performed in bins of transverse momentum, pT, and rapidity, y, covering the range 2.5 < pT< 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero Ds ± production asymmetry is found with a significance of 3.3 standard deviations.[Figure not available: see fulltext.].
AB - The inclusive Ds ± 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 Ds ± mesons are used, which decay as Ds ± → ϕπ±, with ϕ → K+K−. The measurement is performed in bins of transverse momentum, pT, and rapidity, y, covering the range 2.5 < pT< 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero Ds ± production asymmetry is found with a significance of 3.3 standard deviations.[Figure not available: see fulltext.].
KW - Charm physics
KW - Forward physics
KW - Hadron-Hadron scattering (experiments)
KW - Heavy quark production
KW - QCD
UR - http://www.scopus.com/inward/record.url?scp=85051220284&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051220284&partnerID=8YFLogxK
U2 - 10.1007/JHEP08(2018)008
DO - 10.1007/JHEP08(2018)008
M3 - Article
VL - 2018
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 8
M1 - 8
ER -