Study of CP violation in B0→ DK⋆(892)0 decays with D → Kπ(ππ), ππ(ππ), and KK final states

R Aaij,A S W Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,C Agapopoulou,C A Aidala,Z Ajaltouni,S Akar,K Akiba,P Albicocco,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,J L Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,P Andreola,M Andreotti,D Andreou,A Anelli,D Ao,F Archilli,M Argenton,S Arguedas Cuendis,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,D Bacher,I Bachiller Perea,S Bachmann,M Bachmayer,J J Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista De Souza Leite,M Barbetti,I R Barbosa,R J Barlow,S Barsuk,W Barter,M Bartolini,J Bartz,F Baryshnikov,J M Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I B Bediaga,A Beiter,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,H C Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,J Bex,Ia Bezshyiko,J Bhom,M S Bieker,N V Biesuz,P Billoir,A Biolchini,M Birch,F C R Bishop,A Bitadze,A Bizzeti,M P Blago,T Blake,F Blanc,J E Blank,S Blusk,D Bobulska,V Bocharnikov,J A Boelhauve,O Boente Garcia,T Boettcher,A Bohare,A Boldyrev,C S Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,J T Borsuk,S A Bouchiba,T J V Bowcock,A Boyer,C Bozzi,M J Bradley,A Brea Rodriguez,N Breer,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,A T Burke,C Burr,A Bursche,A Butkevich,J S Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Calvo Gomez,J Cambon Bouzas,P Campana,D H Campora Perez,A F Campoverde Quezada,S Capelli,L Capriotti,R Caravaca-Mora,A Carbone,L Carcedo Salgado,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,J Castro Godinez,M Cattaneo,G Cavallero,V Cavallini,S Celani,J Cerasoli,D Cervenkov,S Cesare,A J Chadwick,I Chahrour,M Charles,Ph Charpentier,C A Chavez Barajas,M Chefdeville,C Chen,S Chen,Z Chen,A Chernov,S Chernyshenko,V Chobanova,S Cholak,M 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Duk,P Durante,M M Duras,J M Durham,A Dziurda,A Dzyuba,S Easo,E Eckstein,U Egede,A Egorychev,V Egorychev,C Eirea Orro,S Eisenhardt,E Ejopu,S Ek-In,L Eklund,M Elashri,J Ellbracht,S Ely,A Ene,E Epple,S Escher,J Eschle,S Esen,T Evans,F Fabiano,L N Falcao,Y Fan,B Fang,L Fantini,M Faria,K Farmer,D Fazzini,L Felkowski,M Feng,M Feo,M Fernandez Gomez,A D Fernez,F Ferrari,F Ferreira Rodrigues,S Ferreres Sole,M Ferrillo,M Ferro-Luzzi,S Filippov,R A Fini,M Fiorini,K M Fischer,D S Fitzgerald,C Fitzpatrick,F Fleuret,M Fontana,L F Foreman,R Forty,D Foulds-Holt,M Franco Sevilla,M Frank,E Franzoso,G Frau,C Frei,D A Friday,L Frontini,J Fu,Q Fuehring,Y Fujii,T Fulghesu,E Gabriel,G Galati,M D Galati,A Gallas Torreira,D Galli,S Gambetta,M Gandelman,P Gandini,H Gao,R Gao,Y Gao,M Garau,L M Garcia Martin,P Garcia Moreno,J García Pardiñas,B Garcia Plana,K G Garg,L Garrido,C Gaspar,R E Geertsema,L L Gerken,E Gersabeck,M Gersabeck,T Gershon,Z Ghorbanimoghaddam,L Giambastiani,F I Giasemis,V Gibson,H K Giemza,A L 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doi:10.1007/jhep05(2024)025

Abstract

A measurement of CP-violating observables associated with the interference of B0→ D0K⋆(892)0 and B0→D¯0K⋆8920\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$ {B}^0\ o {\\overline{D}}^0{K}^{\\star }{(892)}^0 $$\\end{document} decay amplitudes is performed in the D0→ K∓π±(π+π−), D0→ π+π−(π+π−), and D0→ K+K− final states using data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb−1. CP-violating observables related to the interference of Bs0→D0K¯⋆8920\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$ {B}_s^0\ o {D}^0{\\overline{K}}^{\\star }{(892)}^0 $$\\end{document} and Bs0→D¯0K¯⋆8920\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$ {B}_s^0\ o {\\overline{D}}^0{\\overline{K}}^{\\star }{(892)}^0 $$\\end{document} are also measured, but no evidence for interference is found. The B0 observables are used to constrain the parameter space of the CKM angle γ and the hadronic parameters rB0DK⋆\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$ {r}_{B^0}^{DK\\star } $$\\end{document} and δB0DK⋆\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$ {\\delta}_{B^0}^{DK\\star } $$\\end{document} with inputs from other measurements. In a combined analysis, these measurements allow for four solutions in the parameter space, only one of which is consistent with the world average.

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