TY - JOUR
T1 - Measurement of (Formula presented) asymmetries in (Formula presented) decays
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 - Back, J. J.
AU - Baladron Rodriguez, P.
AU - Balagura, V.
AU - Balboni, A.
AU - LHCb collaboration
AU - da silva Bolognani, Carolina
AU - Burgos Marcos, Marta
AU - Chiotopoulos, Xenofon
AU - de Vries, Jacco
AU - Merk, Marcel
AU - Nicotra, Davide
AU - Onderwater, Gerco
AU - Pawley, Chris
AU - Vos, Keri
AU - Cámpora Pérez, Daniel Hugo
AU - Lucio Martinez, Miriam
N1 - Funding Information:
We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: ARC (Australia); CAPES, CNPq, FAPERJ and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MCID/IFA (Romania); MICIU and AEI (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP and NSF (USA). We acknowledge the computing resources that are provided by ARDC (Australia), CBPF (Brazil), CERN, IHEP and LZU (China), IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), Polish WLCG (Poland), IFIN-HH (Romania), PIC (Spain), CSCS (Switzerland), and GridPP (United Kingdom). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from Key Research Program of Frontier Sciences of CAS, CAS PIFI, CAS CCEPP, Fundamental Research Funds for the Central Universities, and Sci. & Tech. Program of Guangzhou (China); Minciencias (Colombia); EPLANET, Marie Sk\u0142odowska-Curie Actions, ERC and NextGenerationEU (European Union); A*MIDEX, ANR, IPhU and Labex P2IO, and Re\u0301gion Auvergne-Rho\u0302ne-Alpes (France); Alexander-von-Humboldt Foundation (Germany); ICSC (Italy); Severo Ochoa and Mar\u00EDa de Maeztu Units of Excellence, GVA, XuntaGal, GENCAT, InTalent-Inditex and Prog. Atracci\u00F3n Talento CM (Spain); SRC (Sweden); the Leverhulme Trust, the Royal Society and UKRI (United Kingdom).
Publisher Copyright:
© 2025 CERN, for the LHCb Collaboration.
PY - 2025/5/8
Y1 - 2025/5/8
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.
U2 - 10.1103/PhysRevD.111.092004
DO - 10.1103/PhysRevD.111.092004
M3 - Article
SN - 1550-7998
VL - 111
JO - Physical Review D
JF - Physical Review D
IS - 9
M1 - 092004
ER -