Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons

R. Aaij; A. S. W. Abdelmotteleb; C. Abellan Beteta; F. Abudinen; T. Ackernley; B. Adeva; M. Adinolfi; P. Adlarson; H. Afsharnia; 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; M. Andreotti; D. Andreou; D. Ao; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; M. Atzeni; B. Audurier; I. B. Bachiller Perea; S. Bachmann; M. Bachmayer; J. J. Back; A. Bailly-reyre; P. Baladron Rodriguez; V. Balagura; W. Baldini; J. Baptista de Souza Leite; M. Barbetti; R. J. Barlow; S. Barsuk; LHCb collaboration; Gerco Onderwater

doi:10.1007/JHEP09(2023)202

Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons

R. Aaij^*, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinen, T. Ackernley, B. Adeva, M. Adinolfi, P. Adlarson, H. Afsharnia, C. Agapopoulou, C. A. Aidala, Z. Ajaltouni, S. Akar, K. Akiba, P. Albicocco, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. AlioucheP. Alvarez Cartelle, R. Amalric, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, D. Andreou, D. Ao, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, I. B. Bachiller Perea, S. Bachmann, M. Bachmayer, J. J. Back, A. Bailly-reyre, P. Baladron Rodriguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite, M. Barbetti, R. J. Barlow, S. Barsuk, LHCb collaboration, Gerco Onderwater

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The CP asymmetries of seven B- decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb(-1) of proton-proton collisions collected by the LHCb experiment. Decays involving a D*(0) or D-s(*-) meson are analysed by reconstructing only the D-0 or D-s(-) decay products. This paper presents the first measurement of A(CP) (B- -> D-s(*-) D-0) and A(CP) (B- -> D-s(-) D*(0)), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.

Original language	English
Article number	202
Number of pages	30
Journal	Journal of High Energy Physics
Volume	2023
Issue number	9
DOIs	https://doi.org/10.1007/JHEP09(2023)202
Publication status	Published - 28 Sept 2023

Keywords

CP Violation
Flavour Physics
Hadron-Hadron Scattering
Branching fraction

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10.1007/JHEP09(2023)202Licence: CC BY

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Aaij, R., Abdelmotteleb, A. S. W., Beteta, C. A., Abudinen, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C. A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Albero, A. A., ... Onderwater, G. (2023). Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons. Journal of High Energy Physics, 2023(9), Article 202. https://doi.org/10.1007/JHEP09(2023)202

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title = "Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons",

abstract = "The CP asymmetries of seven B- decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb(-1) of proton-proton collisions collected by the LHCb experiment. Decays involving a D*(0) or D-s(*-) meson are analysed by reconstructing only the D-0 or D-s(-) decay products. This paper presents the first measurement of A(CP) (B- -> D-s(*-) D-0) and A(CP) (B- -> D-s(-) D*(0)), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.",

keywords = "CP Violation, Flavour Physics, Hadron-Hadron Scattering, Branching fraction",

author = "R. Aaij and Abdelmotteleb, {A. S. W.} and Beteta, {C. Abellan} and F. Abudinen and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and H. Afsharnia and C. Agapopoulou and Aidala, {C. A.} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and Albero, {A. Alfonso} and Z. Aliouche and Cartelle, {P. Alvarez} and R. Amalric and S. Amato and Amey, {J. L.} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and Perea, {I. B. Bachiller} and S. Bachmann and M. Bachmayer and Back, {J. J.} and A. Bailly-reyre and Rodriguez, {P. Baladron} and V. Balagura and W. Baldini and Leite, {J. Baptista de Souza} and M. Barbetti and Barlow, {R. J.} and S. Barsuk and {LHCb collaboration} and Gerco Onderwater",

year = "2023",

month = sep,

day = "28",

doi = "10.1007/JHEP09(2023)202",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "9",

}

Aaij, R, Abdelmotteleb, ASW, Beteta, CA, Abudinen, F, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P, Afsharnia, H, Agapopoulou, C, Aidala, CA, Ajaltouni, Z, Akar, S, Akiba, K, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Albero, AA, Aliouche, Z, Cartelle, PA, Amalric, R, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Perea, IBB, Bachmann, S, Bachmayer, M, Back, JJ, Bailly-reyre, A, Rodriguez, PB, Balagura, V, Baldini, W, Leite, JBDS, Barbetti, M, Barlow, RJ, Barsuk, S, LHCb collaboration & Onderwater, G 2023, 'Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons', Journal of High Energy Physics, vol. 2023, no. 9, 202. https://doi.org/10.1007/JHEP09(2023)202

TY - JOUR

T1 - Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons

AU - Aaij, R.

AU - Abdelmotteleb, A. S. W.

AU - Beteta, C. Abellan

AU - Abudinen, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Afsharnia, H.

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 - Albero, A. Alfonso

AU - Aliouche, Z.

AU - Cartelle, P. Alvarez

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 - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Perea, I. B. Bachiller

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-reyre, A.

AU - Rodriguez, P. Baladron

AU - Balagura, V.

AU - Baldini, W.

AU - Leite, J. Baptista de Souza

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - LHCb collaboration

AU - Onderwater, Gerco

PY - 2023/9/28

Y1 - 2023/9/28

N2 - The CP asymmetries of seven B- decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb(-1) of proton-proton collisions collected by the LHCb experiment. Decays involving a D*(0) or D-s(*-) meson are analysed by reconstructing only the D-0 or D-s(-) decay products. This paper presents the first measurement of A(CP) (B- -> D-s(*-) D-0) and A(CP) (B- -> D-s(-) D*(0)), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.

AB - The CP asymmetries of seven B- decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb(-1) of proton-proton collisions collected by the LHCb experiment. Decays involving a D*(0) or D-s(*-) meson are analysed by reconstructing only the D-0 or D-s(-) decay products. This paper presents the first measurement of A(CP) (B- -> D-s(*-) D-0) and A(CP) (B- -> D-s(-) D*(0)), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.

KW - CP Violation

KW - Flavour Physics

KW - Hadron-Hadron Scattering

KW - Branching fraction

U2 - 10.1007/JHEP09(2023)202

DO - 10.1007/JHEP09(2023)202

M3 - Article

SN - 1029-8479

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

M1 - 202

ER -

Measurement of <i>CP</i> asymmetries and branching fraction ratios of <i>B<SUP>-</SUP></i> decays to two charm mesons

Abstract

Keywords

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