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

The Lhcb Collaboration

doi:10.1007/JHEP08(2018)008

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

The Lhcb Collaboration

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

The inclusive D_s ^± 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_s ^± mesons are used, which decay as D_s ^± → ϕπ^±, with ϕ → K⁺K⁻. The measurement is performed in bins of transverse momentum, p_T, and rapidity, y, covering the range 2.5 < p_T< 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero D_s ^± production asymmetry is found with a significance of 3.3 standard deviations.[Figure not available: see fulltext.].

Original language	English
Article number	8
Pages (from-to)	1-21
Number of pages	21
Journal	Journal of High Energy Physics
Volume	2018
Issue number	8
Early online date	2 Aug 2018
DOIs	https://doi.org/10.1007/JHEP08(2018)008
Publication status	Published - Aug 2018

Funding

Open Access, Copyright CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3.

Funders	Funder number
???publication-publication-funding-organisation-not-added???	ST/N000250/1, ST/N000447/1, 1681016, ST/K003410/1, 1796908, ST/N000234/1, ST/N000463/1, ST/N000455/1, ST/L003163/1, ST/N000242/1
AvH Foundation
CNRS/IN2P3
FASO
Herchel Smith Fund
Lev-erhulme Trust
Marie Sklo dowska-Curie Actions
MinES
OCEVU
Yandex LLC
National Science Foundation
School of Energy Resources, University of Wyoming
CERN
College of Arts and Sciences, University of Nebraska-Lincoln
Science and Technology Facilities Council	ST/J004332/1, LHCb, LHCb Upgrades
Royal Society
English-Speaking Union
European Commission
European Research Council
Deutsche Forschungsgemeinschaft
Agence Nationale de la Recherche
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	166208
National Natural Science Foundation of China
Russian Foundation for Basic Research
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Bundesministerium für Bildung und Forschung
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Generalitat Valenciana
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science and Technology
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum Nauki
Ministerstwo Nauki i Szkolnictwa Wyższego
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
National Academy of Sciences of Ukraine
Financiadora de Estudos e Projetos
Russian Science Foundation
Région Auvergne-Rhône-Alpes
Recruitment Program of Global Experts

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Charm physics
Forward physics
Hadron-Hadron scattering (experiments)
Heavy quark production
QCD

Access to Document

10.1007/JHEP08(2018)008

Persistent URL (handle)

Persistent link

Cite this

@article{e6cd2a4736084cf49cc8336a52f313e0,

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

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.].",

keywords = "Charm physics, Forward physics, Hadron-Hadron scattering (experiments), Heavy quark production, QCD",

author = "R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and F. Archilli and P. d{\textquoteright}Argent and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and G. Auriemma and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and \{Carvalho Akiba\}, K. and V. Coco and \{De Bruyn\}, K. and M. Ferro-Luzzi and T. Ketel and M. Merk and Onderwater, \{C. J.G.\} and G. Raven and M. Schiller and N. Serra and B. Storaci and V. Syropoulos and \{van Tilburg\}, J. and S. Tolk and N. Tuning and \{The Lhcb Collaboration\}",

year = "2018",

month = aug,

doi = "10.1007/JHEP08(2018)008",

language = "English",

volume = "2018",

pages = "1--21",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "8",

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TY - JOUR

T1 - Measurement of Ds ± production asymmetry in pp collisions at √s=7 and 8 TeV

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 - Carvalho Akiba, K.

AU - Coco, V.

AU - De Bruyn, K.

AU - Ferro-Luzzi, M.

AU - Ketel, T.

AU - Merk, M.

AU - Onderwater, C. J.G.

AU - Raven, G.

AU - Schiller, M.

AU - Serra, N.

AU - Storaci, B.

AU - Syropoulos, V.

AU - van Tilburg, J.

AU - Tolk, S.

AU - Tuning, N.

AU - The Lhcb Collaboration

PY - 2018/8

Y1 - 2018/8

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 - https://www.scopus.com/pages/publications/85051220284

UR - https://www.scopus.com/pages/publications/85051220284#tab=citedBy

U2 - 10.1007/JHEP08(2018)008

DO - 10.1007/JHEP08(2018)008

M3 - Article

AN - SCOPUS:85051220284

SN - 1126-6708

VL - 2018

SP - 1

EP - 21

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 8

ER -