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CP Violation Analysis of Local and Nonlocal Amplitudes in the B¯0→K¯*0μ+μ- Decay

Academic Article
Publication Date:
2026
Short description:
(2026). CP Violation Analysis of Local and Nonlocal Amplitudes in the B¯0→K¯*0μ+μ- Decay [journal article - articolo]. In PHYSICAL REVIEW LETTERS. Retrieved from https://hdl.handle.net/10446/335234
abstract:
A search for CP violation in the B¯0→K̄∗0μ+μ- decay is performed using proton-proton collision data collected by the LHCb experiment during Run 1 and Run 2, corresponding to an integrated luminosity of 8.4 fb-1. The analysis exploits the full angular distribution of the decay, providing sensitivity to CP-violating effects in both vector and axial-vector contributions to this flavor-changing neutral-current process. The complex Wilson coefficients are determined within the weak effective theory through an unbinned maximum-likelihood fit to the angular observables, incorporating nonlocal hadronic amplitudes across the full dimuon mass spectrum. The precision of the CP-violation observables is improved by an order of magnitude relative to previous measurements, with the imaginary parts of the Wilson coefficients now determined more precisely than the real parts. No significant CP violation is observed, and the results are consistent with the standard model.
Iris type:
1.1.01 Articoli/Saggi in rivista - Journal Articles/Essays
List of contributors:
Aaij, R.; Abdelfatah, M.; Abdelmotteleb, A.  s.  w.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adefisoye, A.  a.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoulou, C.; Aidala, C.  a.; Akar, S.; Akiba, K.; Albicocco, P.; Albrecht, J.; Aleksiejunas, R.; Alessio, F.; Alvarez Cartelle, P.; Amato, S.; Amey, J.  l.; Amhis, Y.; An, L.; Anderlini, L.; Andersson, M.; Andreola, P.; Andreotti, M.; Andres Estrada, S.; Anelli, A.; Ao, D.; Arata, C.; Archilli, F.; Areg, Z.; Argenton, M.; Arguedas Cuendis, S.; Arnone, L.; Artuso, M.; Aslanides, E.; Ataíde Da Silva, R.; Atzeni, M.; Audurier, B.; Authier, J.  a.; Bacher, D.; Bachiller Perea, I.; Bachmann, S.; Bachmayer, M.; Back, J.  j.; Bai, Z.  b.; Balagura, V.; Balboni, A.; Baldini, W.; Baldwin, Z.; Balzani, L.; Bao, H.; Baptista De Souza Leite, J.; Barbero Pretel, C.; Barbetti, M.; Barbosa, I.  r.; Barlow, R.  j.; Barnyakov, M.; Baron, S.; Barsuk, S.; Barter, W.; Bartz, J.; Bashir, S.; Batsukh, B.; Battista, P.  b.; Bavarchee, A.; Bay, A.; Beck, A.; Becker, M.; Bedeschi, F.; Bediaga, I.  b.; Behling, N.  a.; Belin, S.; Bellavista, A.; Belov, I.; Belyaev, I.; Bencivenni, G.; Ben-Haim, E.; Bernet, R.; Bertolin, A.; Betti, F.; Bex, J.; Bezshyyko, O.; Bhattacharya, S.; Bieker, M.  s.; Biesuz, N.  v.; Biolchini, A.; Birch, M.; Bishop, F.  c.  r.; Bitadze, A.; Bizzeti, A.; Blake, T.; Blanc, F.; Blank, J.  e.; Blusk, S.; Boelhauve, J.  a.; Boente Garcia, O.; Boettcher, T.; Bohare, A.; Bolognani, C.; Bolzonella, R.; Bonacci, R.  b.; Bordelius, A.; Borgato, F.; Borghi, S.; Borsato, M.; Borsuk, J.  t.; Bottalico, E.; Bouchiba, S.  a.; Bovill, M.; Bowcock, T.  j.  v.; Boyer, A.; Bozzi, C.; Brandenburg, J.  d.; Brea Rodriguez, A.; Breer, N.; Breitfeld, C.; Brodzicka, J.; Brown, J.; Brundu, D.; Buchanan, E.; Burgos Marcos, M.; Burr, C.; Buti, C.; Butter, J.  s.; Buytaert, J.; Byczynski, W.; Cadeddu, S.; Cai, H.; Cai, Y.; Caillet, A.; Calabrese, R.; Calefice, L.; Calvi, M.; Calvo Gomez, M.; Camargo Magalhaes, P.; Cambon Bouzas, J.  i.; Campana, P.; Campos, A.  c.; Campoverde Quezada, A.  f.; Cao, Y.; Capelli, S.; Caporale, M.; Capriotti, L.; Caravaca-Mora, R.; Carbone, A.; Carcedo Salgado, L.; Cardinale, R.; Cardini, A.; Carniti, P.; Carus, L.; Casais Vidal, A.; Caspary, R.; Casse, G.; Cattaneo, M.; Cavallero, G.; Cavallini, V.; Celani, S.; Celestino, I.; Cesare, S.; Chadwick, A.  j.; Chahrour, I.; Charles, M.; Charpentier, Ph.; Chatzianagnostou, E.; Cheaib, R.; Chefdeville, M.; Chen, C.; Chen, J.; Chen, S.; Chen, Z.; Chen Hu, A.; Cherif, M.; Chernyshenko, S.; Chiotopoulos, X.; Chizhik, G.; Chobanova, V.; Chrzaszcz, M.; Chulikov, V.; Ciambrone, P.; Cid Vidal, X.; Cifra, P.; Clarke, P.  e.  l.; Clemencic, M.; Cliff, H.  v.; Closier, J.; Cocha Toapaxi, C.; Coco, V.; Cogan, J.; Cogneras, E.; Cojocariu, L.; Collaviti, S.; Collins, P.; Colombo, T.; Colonna, M.; Comerma-Montells, A.; Congedo, L.; Connaughton, J.; Contu, A.; Cooke, N.; Cordova, G.; Coronel, C.; Corredoira, I.; Correia, A.; Corti, G.; Costantino, G.  c.; Cottee Meldrum, J.; Couturier, B.; Craik, D.  c.; Crepet, N.; Cruz Torres, M.; Cubero Campos, M.; Curras Rivera, E.; Currie, R.; Da Silva, C.  l.; Dai, X.; Dalseno, J.; D'Ambrosio, C.; Darze, G.; Davidson, A.; Davies, J.  e.; De Aguiar Francisco, O.; De Angelis, C.; De Benedetti, F.; De Boer, J.; De Bruyn, K.; De Capua, S.; De Cian, M.; De Freitas Carneiro Da Graca, U.; De Lucia, E.; De Miranda, J.  m.; De Paula, L.; De Serio, M.; De Simone, P.; De Vellis, F.; De Vries, J.  a.; Debernardis, F.; Decamp, D.; Dekkers, S.; Del Buono, L.; Delaney, B.; Deng, J.; Denysenko, V.; Deschamps, O.; Dettori, F.; Dey, B.; Di Nezza, P.; Ding, S.; Ding, Y.; Dittmann, L.; Docheva, A.  d.; Doheny, A.; Dong, C.; Dordei, F.; Dos Reis, A.  c.; Dowling, A.  d.; Dreyfus, L.; Duan, W.; Duda, P.; Dufour, L.; Duk, V.; Durante, P.; Duras, M.  m.; Durham, J.  m.; Durmus, O.  d.; Duwe, K.; Dziurda, A.; Easo, S.; Ecks
Authors of the University:
LUPATO Anna
REDI Federico Leo
Handle:
https://aisberg.unibg.it/handle/10446/335234
Full Text:
https://aisberg.unibg.it/retrieve/handle/10446/335234/982170/NEW_gg5v-mp26.pdf
Published in:
PHYSICAL REVIEW LETTERS
Journal
  • Research

Research

Concepts (2)


PE2_3 - Experimental particle physics with accelerators - (2024)

Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
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