Measurement of (Formula presented) asymmetries in (Formula presented) decays

LHCb Collaboration

doi:10.1103/PhysRevD.111.092004

Measurement of (Formula presented) asymmetries in (Formula presented) decays

LHCb Collaboration

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University of Warwick
Physik-Institut der Universität Zürich
University of Liverpool
Syracuse University
Universidade de Santiago de Compostela
University of Bristol
Uppsala University
University of Glasgow
Université Paris-Saclay
University of Michigan, Ann Arbor
Clermont-Auvergne University
LNF-INFN
University of Dortmund
Lamarr Institute for Machine Learning and Artificial Intelligence
European Organization for Nuclear Research
University of Manchester
University of Cambridge
Sorbonne Université
Instituto de Biofisica da UFRJ
State Key Laboratory of Nuclear Physics and Technology
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
University of Chinese Academy of Sciences
INFN Roma Tor Vergata
University of Rome “Tor Vergata”
Consejo Nacional de Rectores (CONARE)
Aix-Marseille Université
Institute of Physics
Massachusetts Institute of Technology
University of Oxford
Laboratoire de Physique des Particules
University of Heidelberg
Pontifícia Universidade Católica do Rio de Janeiro
INFN Sezione di Bologna
University of Edinburgh
RWTH Aachen University
Agh University of Science and Technology Faculty of Computer Science
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Scuola Normale Superiore di Pisa
Institute of High Energy Physics, Chinese Academy of Sciences
Centro Brasileiro de Pesquisas Fisicas
Sezione di Genova
Sezione di Roma
Universitat Ramon LLull - CSIC
INFN
Institute for Nuclear Physics
Imperial College London
Ip Paris
University of Cincinnati
Maastricht University
University of Ferrara
Monash University
The Ohio State University
MST-8, Los Alamos National Laboratory
Sezione INFN di Cagliari
University of Padova
Tsinghua University
Wuhan University
University of Barcelona
Facultad de Ciencias Fisicas
University of Bologna
University of Genoa
Sezione INFN di Milano
University of Milano
Institute of Nuclear Research, National Academy of Sciences in Ukraine
Universidade da Coruña
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Bari
Universidad Nacional Autónoma de Honduras
Hunan University
Central China Normal University
Universitá di Cagliari
ICS/University of Groningen
Centro Federal De Educacão Tecnológica Celso Suckow Da Fonseca
Università degli studi di Bari Aldo Moro
Eötvös Loránd University
University College Dublin
South China Normal University
Tadeusz Kosciuszko Cracow University of Technology
INFN Sezione di Perugia
CCLRC Rutherford Appleton Laboratory
University Bonn
University of Perugia
University of Valencia
University of Maryland, College Park
University of Freiburg
National Centre for Nuclear Research (NCBJ)
National University of Kyiv
University of Pisa
Universidad Nacional de Colombia
University of Birmingham
Kharkov Institute of Physics and Technology
Vrije Universiteit Amsterdam
Lanzhou University
Henan University
Dipartimento di Fisica
Ruhr-University Bochum
Universidad de Ingeniería y Tecnología (UTEC)
University of Siena
Division of Particle Physics
Vilnius University
Università degli Studi della Basilicata
Max-Planck-Institut für Kernphysik
Universidad de Alcalá
University of Urbino Carlo Bo

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14 Citations (Scopus)

Abstract

A search for (Formula presented) violation in (Formula presented) and (Formula presented) decays is presented using the full Run 1 and Run 2 data samples of (Formula presented) collisions collected with the LHCb detector, corresponding to an integrated luminosity of (Formula presented) at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the (Formula presented)-violating asymmetries are measured to be (Formula presented) and (Formula presented), where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be (Formula presented) and (Formula presented), constituting the most precise measurements of these asymmetries to date.

Original language	English
Article number	092004
Journal	Physical Review D
Volume	111
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.111.092004
Publication status	Published - 1 May 2025

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10.1103/PhysRevD.111.092004

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@article{6465f9e7093a4f749d351f69f662a829,

title = "Measurement of (Formula presented) asymmetries in (Formula presented) decays",

abstract = "A search for (Formula presented) violation in (Formula presented) and (Formula presented) decays is presented using the full Run 1 and Run 2 data samples of (Formula presented) collisions collected with the LHCb detector, corresponding to an integrated luminosity of (Formula presented) at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the (Formula presented)-violating asymmetries are measured to be (Formula presented) and (Formula presented), where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be (Formula presented) and (Formula presented), constituting the most precise measurements of these asymmetries to date.",

author = "\{LHCb Collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and Adefisoye, \{A. A.\} and B. Adeva and M. Adinolfi and P. Adlarson and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and Z. Aliouche and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and P. Andreola and M. Andreotti and D. Andreou and A. Anelli and D. Ao and F. Archilli and M. Argenton and \{Arguedas Cuendis\}, S. and A. Artamonov and M. Artuso and E. Aslanides and \{Ata{\'i}de Da Silva\}, R. and M. Atzeni and B. Audurier and D. Bacher and \{Bachiller Perea\}, I. and S. Bachmann and M. Bachmayer and V. Balagura and F. Fleuret and E. Maurice and Niel, \{E. M.\}",

note = "Publisher Copyright: {\textcopyright} 2025 CERN, for the LHCb Collaboration.",

year = "2025",

month = may,

day = "1",

doi = "10.1103/PhysRevD.111.092004",

language = "English",

volume = "111",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "9",

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TY - JOUR

T1 - Measurement of (Formula presented) asymmetries in (Formula presented) decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adefisoye, A. A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreola, P.

AU - Andreotti, M.

AU - Andreou, D.

AU - Anelli, A.

AU - Ao, D.

AU - Archilli, F.

AU - Argenton, M.

AU - Arguedas Cuendis, S.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Ataíde Da Silva, R.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bacher, D.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Balagura, V.

AU - Fleuret, F.

AU - Maurice, E.

AU - Niel, E. M.

PY - 2025/5/1

Y1 - 2025/5/1

N2 - A search for (Formula presented) violation in (Formula presented) and (Formula presented) decays is presented using the full Run 1 and Run 2 data samples of (Formula presented) collisions collected with the LHCb detector, corresponding to an integrated luminosity of (Formula presented) at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the (Formula presented)-violating asymmetries are measured to be (Formula presented) and (Formula presented), where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be (Formula presented) and (Formula presented), constituting the most precise measurements of these asymmetries to date.

AB - A search for (Formula presented) violation in (Formula presented) and (Formula presented) decays is presented using the full Run 1 and Run 2 data samples of (Formula presented) collisions collected with the LHCb detector, corresponding to an integrated luminosity of (Formula presented) at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the (Formula presented)-violating asymmetries are measured to be (Formula presented) and (Formula presented), where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be (Formula presented) and (Formula presented), constituting the most precise measurements of these asymmetries to date.

UR - https://www.scopus.com/pages/publications/105006621784

U2 - 10.1103/PhysRevD.111.092004

DO - 10.1103/PhysRevD.111.092004

M3 - Article

AN - SCOPUS:105006621784

SN - 2470-0010

VL - 111

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092004

ER -

Measurement of (Formula presented) asymmetries in (Formula presented) decays

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