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Measurement of the branching fraction and CP asymmetry of B0 →π0π0 decays using 198×106 B B ¯ pairs in Belle II data

Publication ,  Journal Article
Abudinén, F; Adachi, I; Adamczyk, K; Aggarwal, L; Ahmed, H; Aihara, H; Akopov, N; Aloisio, A; Anh Ky, N; Asner, DM; Atmacan, H; Aushev, T ...
Published in: Physical Review D
June 1, 2023

We report measurements of the branching fraction and CP asymmetry in B0→π0π0 decays reconstructed at Belle II in an electron-positron collision sample containing 198×106 BB¯ pairs. We measure a branching fraction B(B0→π0π0)=(1.38±0.27±0.22)×10-6 and a CP asymmetry ACP(B0→π0π0)=0.14±0.46±0.07, where the first uncertainty is statistical and the second is systematic.

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Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

June 1, 2023

Volume

107

Issue

11
 

Citation

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Abudinén, F., Adachi, I., Adamczyk, K., Aggarwal, L., Ahmed, H., Aihara, H., … Ferber, T. (2023). Measurement of the branching fraction and CP asymmetry of B0 →π0π0 decays using 198×106 B B ¯ pairs in Belle II data. Physical Review D, 107(11). https://doi.org/10.1103/PhysRevD.107.112009
Abudinén, F., I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, et al. “Measurement of the branching fraction and CP asymmetry of B0 →π0π0 decays using 198×106 B B ¯ pairs in Belle II data.” Physical Review D 107, no. 11 (June 1, 2023). https://doi.org/10.1103/PhysRevD.107.112009.
Abudinén F, Adachi I, Adamczyk K, Aggarwal L, Ahmed H, Aihara H, et al. Measurement of the branching fraction and CP asymmetry of B0 →π0π0 decays using 198×106 B B ¯ pairs in Belle II data. Physical Review D. 2023 Jun 1;107(11).
Abudinén, F., et al. “Measurement of the branching fraction and CP asymmetry of B0 →π0π0 decays using 198×106 B B ¯ pairs in Belle II data.” Physical Review D, vol. 107, no. 11, June 2023. Scopus, doi:10.1103/PhysRevD.107.112009.
Abudinén F, Adachi I, Adamczyk K, Aggarwal L, Ahmed H, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Bae H, Bahinipati S, Bambade P, Banerjee S, Bansal S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becker J, Behera PK, Bennett JV, Bernieri E, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhardwaj V, Bhuyan B, Bianchi F, Bilka T, Bilokin S, Biswas D, Bodrov D, Bolz A, Borah J, Bozek A, Bračko M, Branchini P, Briere RA, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Chang MC, Chang P, Cheaib R, Cheema P, Chekelian V, Chen C, Chen YQ, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Choudhury S, Cinabro D, Cochran J, Corona L, Cunliffe S, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, De Marino G, De Nardo G, De Nuccio M, De Pietro G, De Sangro R, Destefanis M, Dey S, De Yta-Hernandez A, Dhamija R, Di Canto A, Di Capua F, DoleŽal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dossett D, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Feichtinger P, Ferber T. Measurement of the branching fraction and CP asymmetry of B0 →π0π0 decays using 198×106 B B ¯ pairs in Belle II data. Physical Review D. 2023 Jun 1;107(11).

Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

June 1, 2023

Volume

107

Issue

11