Evidence for Modification of b Quark Hadronization in High-Multiplicity pp Collisions at s =13 TeV

(LHCb Collaboration)

doi:10.1103/PhysRevLett.131.061901

Evidence for Modification of b Quark Hadronization in High-Multiplicity pp Collisions at s =13 TeV

(LHCb Collaboration)

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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The production rate of Bs0 mesons relative to B0 mesons is measured by the LHCb experiment in pp collisions at a center-of-mass energy s=13 TeV over the forward rapidity interval 2<y<4.5 as a function of the charged particle multiplicity measured in the event. Evidence at the 3.4σ level is found for an increase of the ratio of Bs0 to B0 cross sections with multiplicity at transverse momenta below 6 GeV/c, with no significant multiplicity dependence at higher transverse momentum. Comparison with data from e+e- collisions implies that the density of the hadronic medium may affect the production rates of B mesons. This is qualitatively consistent with the emergence of quark coalescence as an additional hadronization mechanism in high-multiplicity collisions.

langue originale	Anglais
Numéro d'article	061901
journal	Physical Review Letters
Volume	131
Numéro de publication	6
Les DOIs	https://doi.org/10.1103/PhysRevLett.131.061901
état	Publié - 11 août 2023

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10.1103/PhysRevLett.131.061901

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@article{7a604e46e6dc4b32ad4451fab6682885,

title = "Evidence for Modification of b Quark Hadronization in High-Multiplicity pp Collisions at s =13 TeV",

abstract = "The production rate of Bs0 mesons relative to B0 mesons is measured by the LHCb experiment in pp collisions at a center-of-mass energy s=13 TeV over the forward rapidity interval 2",

author = "\{(LHCb Collaboration)\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and K. Akiba and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-Reyre and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista De Souza Leite\}, J. and M. Barbetti and Barlow, \{R. J.\} and S. Barsuk and W. Barter and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2023 CERN. ",

year = "2023",

month = aug,

day = "11",

doi = "10.1103/PhysRevLett.131.061901",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "6",

}

TY - JOUR

T1 - Evidence for Modification of b Quark Hadronization in High-Multiplicity pp Collisions at s =13 TeV

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-Reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista De Souza Leite, J.

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2023/8/11

Y1 - 2023/8/11

N2 - The production rate of Bs0 mesons relative to B0 mesons is measured by the LHCb experiment in pp collisions at a center-of-mass energy s=13 TeV over the forward rapidity interval 2

AB - The production rate of Bs0 mesons relative to B0 mesons is measured by the LHCb experiment in pp collisions at a center-of-mass energy s=13 TeV over the forward rapidity interval 2

U2 - 10.1103/PhysRevLett.131.061901

DO - 10.1103/PhysRevLett.131.061901

M3 - Article

C2 - 37625046

AN - SCOPUS:85168723742

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 061901

ER -

Evidence for Modification of b Quark Hadronization in High-Multiplicity pp Collisions at s =13 TeV

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