|国家预印本平台
| 注册
首页|Measurement of $CP$ asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays at Belle II

Measurement of $CP$ asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays at Belle II

Measurement of $CP$ asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays at Belle II

来源：Arxiv_logoArxiv
英文摘要

We report a measurement of decay-time dependent charge-parity ($CP$) asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays. We use $387 \times 10^6 B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle II detector at the SuperKEKB asymmetric-energy electron-positron collider. We reconstruct 220 signal events and extract the $CP$-violating parameters $S$ and $C$ from a fit to the distribution of the decay-time difference between the two $B$ mesons. The resulting confidence region is consistent with previous measurements in $B^0 \rightarrow K^0_S K^0_S K^0_S$ and $B^0 \rightarrow (c\bar{c})K^0$ decays, and with predictions based on the standard model.

M. Merola、L. Santelj、F. Pham、T. Grammatico、F. Keil、V. S. Vismaya、C. Cecchi、M. Bertemes、T. Iijima、T. Koga、M. Uchida、K. Gudkova、C. Miller、H. Kindo、U. Tamponi、A. Selce、N. Molina-Gonzalez、C. Wessel、P. Urquijo、A. Lozar、D. Epifanov、A. J. Schwartz、M. Neu、A. Bondar、Y. Sue、M. Mirra、G. Casarosa、Y. Seino、N. Toutounji、M. De Nuccio、R. Ayad、M. Bessner、O. Tittel、L. Aggarwal、F. Forti、E. Prencipe、M. Naruki、S. H. Robertson、L. Zani、S. K. Maurya、T. Hara、K. Dort、Z. Dole?al、E. Bertholet、V. Chekelian、B. Bhuyan、S. E. Vahsen、N. Rad、L. Lanceri、P. Stavroulakis、F. Simon、A. Bolz、A. Garmash、S. Wallner、S. Bettarini、L. Bierwirth、G. Gaudino、A. Sokolov、S. Lacaprara、M. Takahashi、P. K. Behera、T. M. G. Kraetzschmar、Z. Q. Liu、Z. Gruberov¨￠、E. Solovieva、S. Yamada、Y. Nakazawa、W. W. Jacobs、S. Watanuki、Y. Onishchuk、T. K. Pedlar、M. Reif、H. Miyake、C. Z. Yuan、A. Frey、H. Junkerkalefeld、R. Peschke、M. Stari?、S. P. Maharana、X. D. Shi、E. De La Cruz-Burelo、J. S. Zhou、A. Ishikawa、G. Raeuber、P. Pakhlov、F. Becherer、S. Dey、K. Lautenbach、A. Aloisio、H. Svidras、V. Babu、S. Das、M. -C. Chang、H. Hayashii、R. Leboucher、M. E. Sevior、T. Kunigo、Q. Y. Liu、H. Ahmed、A. Thaller、K. Yoshihara、D. Dossett、K. Sumisawa、J. V. Bennett、N. Rauls、T. Ferber、H. Ghumaryan、D. Sahoo、R. Kumar、K. Inami、J. Libby、N. K. Nisar、S. Mondal、G. De Nardo、C. Li、A. Fodor、W. Sutcliffe、J. Skorupa、S. B. Yang、F. Di Capua、R. van Tonder、M. Nakao、H. Park、W. Shan、Y. Sato、K. Chirapatpimol、B. D. Yabsley、Y. Guan、C. Praz、S. Nishida、K. Hara、K. Kumara、R. Dhamija、A. Narimani Charan、K. Kinoshita、C. Ketter、M. Garcia-Hernandez、F. Tenchini、G. Rizzo、F. Meier、C. Marinas、Y. -K. Kim、I. Tsaklidis、S. Uno、D. Marcantonio、Y. Ma、V. Gaur、T. Shillington、H. Ono、Y. Yusa、K. -H. Kim、E. Wang、L. E. Piilonen、P. Goldenzweig、A. Natochii、R. Mussa、W. Gradl、K. E. Varvell、E. Torassa、R. Manfredi、T. Kuhr、D. E. Jaffe、J. Cerasoli、C. -L. Hsu、A. Gabrielli、N. Akopov、M. Wakai、H. Aihara、S. Raiz、Y. Kulii、S. Dreyer、T. Fillinger、D. Levit、J. S. Lange、K. Miyabayashi、Z. S. Stottler、A. Panta、J. H. Yin、V. I. Zhukova、X. P. Xu、Y. Zhang、T. Aushev、L. Corona、D. Bodrov、K. Tanida、Y. Li、M. Kumar、S. Jia、A. Korobov、M. Eliachevitch、Y. -J. Kwon、A. Rostomyan、K. Chilikin、R. Pestotnik、S. Granderath、J. Serrano、J. Dingfelder、P. Oskin、P. Cheema、E. Ganiev、M. Veronesi、Belle II Collaboration、M. Sobotzik、G. Mancinelli、N. Anh Ky、J. Baudot、N. Rout、D. Ghosh、A. Glazov、S. Sandilya、G. Dujany、P. Kri?an、M. Hoek、M. Milesi、T. Matsuda、L. K. Li、I. Ueda、S. Kang、A. Johnson、T. Higuchi、A. Beaubien、A. Soffer、J. Borah、S. Kohani、P. Rados、M. T. Prim、T. Lam、A. B. Kaliyar、S. Maity、P. Chang、I. Peruzzi、S. -J. Cho、M. Hohmann、X. L. Wang、T. Kawasaki、K. Cho、A. Gaz、M. Mrvar、B. Spruck、A. Martini、K. Trabelsi、B. Wach、K. Senyo、G. De Pietro、R. Maiti、R. Mehta、F. Dattola、Y. Unno、H. -G. Moser、A. Bozek、M. Roehrken、S. Choudhury、C. Schmitt、R. Cheaib、J. Strube、A. Di Canto、S. Longo、E. Graziani、I. Ripp-Baudot、A. Heidelbach、T. Shimasaki、M. Watanabe、A. Sibidanov、A. Paladino、D. A. Sanders、B. G. Cheon、M. Mantovano、H. -E. Cho、G. Karyan、M. Sumihama、D. Matvienko、D. Kalita、T. Martinov、G. Ghevondyan、H. Tanigawa、S. -H. Park、Y. Jin、C. -H. Kim、M. Bra?ko、H. Kakuno、R. Kowalewski、G. Pakhlova、L. Nayak、L. M. Cremaldi、O. Gogota、E. -J. Jang、R. J. Sobie、L. B. Rizzuto、D. Biswas、M. Welsch、A. Bobrov、K. Kojima、B. G. Fulsom、S. Dubey、L. Vitale、D. Shtol、C. Finck、B. Paschen、Q. P. Ji、D. Y. Kim、E. Kovalenko、R. Garg、K. H. Kang、V. Vobbilisetti、D. Greenwald、T. Podobnik、R. Godang、K. R. Nakamura、A. Giri、Z. Natkaniec、S. -K. Choi、K. K. Joo、F. Metzner、J. Kumar、H. Purwar、S. Bahinipati、F. R. Le Diberder、I. Adachi、T. Uglov、L. Martel、S. Ogawa、P. Leitl、J. A. McKenna、J. Cochran、B. Gobbo、R. Giordano、S. Stefkova、S. Bussino、J. M. Roney、E. Paoloni、S. Patra、M. Iwasaki、G. Russo、I. Heredia de la Cruz、G. Finocchiaro、A. Hershenhorn、M. Campajola、L. Massaccesi、S. Korpar、E. C. Hill、A. Passeri、K. Unger、M. Piccolo、K. Hayasaka、F. U. Bernlochner、Y. -T. Lai、M. -Z. Wang、D. Tonelli、M. Aversano、T. Bilka、I. Nakamura、S. Hazra、C. Martellini、S. Pokharel、S. Bansal、I. Dom¨anguez Jim¨|nez、K. Uno、C. Chen、M. Bauer、F. Otani、C. Sharma、J. Becker、C. Lyu、T. Lueck、V. Zhilich、M. Masuda、R. Mizuk、D. Ferlewicz、C. Niebuhr、S. Marcello、R. Stroili、H. Atmacan、G. B. Mohanty、B. Scavino、T. Gu、P. Horak、J. B. Singh、G. Nazaryan、T. Konno、S. Reiter、L. Cao、H. Bae、S. Ito、R. Volpe、T. E. Browder、R. A. Briere、A. De Yta-Hernandez、C. Schwanda、P. Feichtinger、N. Ipsita、M. Nayak、F. Bianchi、C. Hearty、E. Manoni、D. M. Asner、S. Moneta、S. Spataro、A. Sangal、M. T. Hedges、G. S. Varner、D. Liventsev、R. Tiwary、C. Sfienti、P. Bambade、V. Savinov、Y. Ushiroda、T. Humair、A. Baur、R. de Sangro、P. Krokovny、A. Warburton、J. -G. Shiu、M. Takizawa、S. Halder、W. Yan、M. Laurenza、M. Barrett、Sw. Banerjee、M. Remnev、Y. Uematsu、P. Ecker、M. Destefanis、C. Kiesling、A. Gellrich、J. Yelton、S. Paul、V. Aushev、P. Jackson、V. Bertacchi、M. Kaleta、Y. Han、Y. Onuki、M. Maggiora、G. Giakoustidis、P. L. M. Podesta-Lerma、G. Pinna Angioni、M. Dorigo、P. Branchini、S. Prell、S. Pardi、Z. Wang、M. Hern¨￠ndez Villanueva、A. Kuzmin、B. Shwartz、A. Budano、K. Parham、R. Itoh、X. Y. Zhou、Q. D. Zhou、T. V. Dong、S. A. De La Motte、P. Kody?、J. Kandra

物理学

M. Merola,L. Santelj,F. Pham,T. Grammatico,F. Keil,V. S. Vismaya,C. Cecchi,M. Bertemes,T. Iijima,T. Koga,M. Uchida,K. Gudkova,C. Miller,H. Kindo,U. Tamponi,A. Selce,N. Molina-Gonzalez,C. Wessel,P. Urquijo,A. Lozar,D. Epifanov,A. J. Schwartz,M. Neu,A. Bondar,Y. Sue,M. Mirra,G. Casarosa,Y. Seino,N. Toutounji,M. De Nuccio,R. Ayad,M. Bessner,O. Tittel,L. Aggarwal,F. Forti,E. Prencipe,M. Naruki,S. H. Robertson,L. Zani,S. K. Maurya,T. Hara,K. Dort,Z. Dole?al,E. Bertholet,V. Chekelian,B. Bhuyan,S. E. Vahsen,N. Rad,L. Lanceri,P. Stavroulakis,F. Simon,A. Bolz,A. Garmash,S. Wallner,S. Bettarini,L. Bierwirth,G. Gaudino,A. Sokolov,S. Lacaprara,M. Takahashi,P. K. Behera,T. M. G. Kraetzschmar,Z. Q. Liu,Z. Gruberov¨￠,E. Solovieva,S. Yamada,Y. Nakazawa,W. W. Jacobs,S. Watanuki,Y. Onishchuk,T. K. Pedlar,M. Reif,H. Miyake,C. Z. Yuan,A. Frey,H. Junkerkalefeld,R. Peschke,M. Stari?,S. P. Maharana,X. D. Shi,E. De La Cruz-Burelo,J. S. Zhou,A. Ishikawa,G. Raeuber,P. Pakhlov,F. Becherer,S. Dey,K. Lautenbach,A. Aloisio,H. Svidras,V. Babu,S. Das,M. -C. Chang,H. Hayashii,R. Leboucher,M. E. Sevior,T. Kunigo,Q. Y. Liu,H. Ahmed,A. Thaller,K. Yoshihara,D. Dossett,K. Sumisawa,J. V. Bennett,N. Rauls,T. Ferber,H. Ghumaryan,D. Sahoo,R. Kumar,K. Inami,J. Libby,N. K. Nisar,S. Mondal,G. De Nardo,C. Li,A. Fodor,W. Sutcliffe,J. Skorupa,S. B. Yang,F. Di Capua,R. van Tonder,M. Nakao,H. Park,W. Shan,Y. Sato,K. Chirapatpimol,B. D. Yabsley,Y. Guan,C. Praz,S. Nishida,K. Hara,K. Kumara,R. Dhamija,A. Narimani Charan,K. Kinoshita,C. Ketter,M. Garcia-Hernandez,F. Tenchini,G. Rizzo,F. Meier,C. Marinas,Y. -K. Kim,I. Tsaklidis,S. Uno,D. Marcantonio,Y. Ma,V. Gaur,T. Shillington,H. Ono,Y. Yusa,K. -H. Kim,E. Wang,L. E. Piilonen,P. Goldenzweig,A. Natochii,R. Mussa,W. Gradl,K. E. Varvell,E. Torassa,R. Manfredi,T. Kuhr,D. E. Jaffe,J. Cerasoli,C. -L. Hsu,A. Gabrielli,N. Akopov,M. Wakai,H. Aihara,S. Raiz,Y. Kulii,S. Dreyer,T. Fillinger,D. Levit,J. S. Lange,K. Miyabayashi,Z. S. Stottler,A. Panta,J. H. Yin,V. I. Zhukova,X. P. Xu,Y. Zhang,T. Aushev,L. Corona,D. Bodrov,K. Tanida,Y. Li,M. Kumar,S. Jia,A. Korobov,M. Eliachevitch,Y. -J. Kwon,A. Rostomyan,K. Chilikin,R. Pestotnik,S. Granderath,J. Serrano,J. Dingfelder,P. Oskin,P. Cheema,E. Ganiev,M. Veronesi,Belle II Collaboration,M. Sobotzik,G. Mancinelli,N. Anh Ky,J. Baudot,N. Rout,D. Ghosh,A. Glazov,S. Sandilya,G. Dujany,P. Kri?an,M. Hoek,M. Milesi,T. Matsuda,L. K. Li,I. Ueda,S. Kang,A. Johnson,T. Higuchi,A. Beaubien,A. Soffer,J. Borah,S. Kohani,P. Rados,M. T. Prim,T. Lam,A. B. Kaliyar,S. Maity,P. Chang,I. Peruzzi,S. -J. Cho,M. Hohmann,X. L. Wang,T. Kawasaki,K. Cho,A. Gaz,M. Mrvar,B. Spruck,A. Martini,K. Trabelsi,B. Wach,K. Senyo,G. De Pietro,R. Maiti,R. Mehta,F. Dattola,Y. Unno,H. -G. Moser,A. Bozek,M. Roehrken,S. Choudhury,C. Schmitt,R. Cheaib,J. Strube,A. Di Canto,S. Longo,E. Graziani,I. Ripp-Baudot,A. Heidelbach,T. Shimasaki,M. Watanabe,A. Sibidanov,A. Paladino,D. A. Sanders,B. G. Cheon,M. Mantovano,H. -E. Cho,G. Karyan,M. Sumihama,D. Matvienko,D. Kalita,T. Martinov,G. Ghevondyan,H. Tanigawa,S. -H. Park,Y. Jin,C. -H. Kim,M. Bra?ko,H. Kakuno,R. Kowalewski,G. Pakhlova,L. Nayak,L. M. Cremaldi,O. Gogota,E. -J. Jang,R. J. Sobie,L. B. Rizzuto,D. Biswas,M. Welsch,A. Bobrov,K. Kojima,B. G. Fulsom,S. Dubey,L. Vitale,D. Shtol,C. Finck,B. Paschen,Q. P. Ji,D. Y. Kim,E. Kovalenko,R. Garg,K. H. Kang,V. Vobbilisetti,D. Greenwald,T. Podobnik,R. Godang,K. R. Nakamura,A. Giri,Z. Natkaniec,S. -K. Choi,K. K. Joo,F. Metzner,J. Kumar,H. Purwar,S. Bahinipati,F. R. Le Diberder,I. Adachi,T. Uglov,L. Martel,S. Ogawa,P. Leitl,J. A. McKenna,J. Cochran,B. Gobbo,R. Giordano,S. Stefkova,S. Bussino,J. M. Roney,E. Paoloni,S. Patra,M. Iwasaki,G. Russo,I. Heredia de la Cruz,G. Finocchiaro,A. Hershenhorn,M. Campajola,L. Massaccesi,S. Korpar,E. C. Hill,A. Passeri,K. Unger,M. Piccolo,K. Hayasaka,F. U. Bernlochner,Y. -T. Lai,M. -Z. Wang,D. Tonelli,M. Aversano,T. Bilka,I. Nakamura,S. Hazra,C. Martellini,S. Pokharel,S. Bansal,I. Dom¨anguez Jim¨|nez,K. Uno,C. Chen,M. Bauer,F. Otani,C. Sharma,J. Becker,C. Lyu,T. Lueck,V. Zhilich,M. Masuda,R. Mizuk,D. Ferlewicz,C. Niebuhr,S. Marcello,R. Stroili,H. Atmacan,G. B. Mohanty,B. Scavino,T. Gu,P. Horak,J. B. Singh,G. Nazaryan,T. Konno,S. Reiter,L. Cao,H. Bae,S. Ito,R. Volpe,T. E. Browder,R. A. Briere,A. De Yta-Hernandez,C. Schwanda,P. Feichtinger,N. Ipsita,M. Nayak,F. Bianchi,C. Hearty,E. Manoni,D. M. Asner,S. Moneta,S. Spataro,A. Sangal,M. T. Hedges,G. S. Varner,D. Liventsev,R. Tiwary,C. Sfienti,P. Bambade,V. Savinov,Y. Ushiroda,T. Humair,A. Baur,R. de Sangro,P. Krokovny,A. Warburton,J. -G. Shiu,M. Takizawa,S. Halder,W. Yan,M. Laurenza,M. Barrett,Sw. Banerjee,M. Remnev,Y. Uematsu,P. Ecker,M. Destefanis,C. Kiesling,A. Gellrich,J. Yelton,S. Paul,V. Aushev,P. Jackson,V. Bertacchi,M. Kaleta,Y. Han,Y. Onuki,M. Maggiora,G. Giakoustidis,P. L. M. Podesta-Lerma,G. Pinna Angioni,M. Dorigo,P. Branchini,S. Prell,S. Pardi,Z. Wang,M. Hern¨￠ndez Villanueva,A. Kuzmin,B. Shwartz,A. Budano,K. Parham,R. Itoh,X. Y. Zhou,Q. D. Zhou,T. V. Dong,S. A. De La Motte,P. Kody?,J. Kandra.Measurement of $CP$ asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays at Belle II[EB/OL].(2024-03-04)[2025-05-13].https://arxiv.org/abs/2403.02590.点此复制

评论