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

The LHCb collaboration

doi:10.1007/JHEP09(2023)202

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

The LHCb collaboration

Research output: Indexed journal article › Article › peer-review

6 Citations (Scopus)

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 (Formula Presented.) meson are analysed by reconstructing only the D⁰ or (Formula Presented.) decay products. This paper presents the first measurement of (Formula Presented.) and (Formula Presented.), 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
Journal	Journal of High Energy Physics
Volume	2023
Issue number	9
DOIs	https://doi.org/10.1007/JHEP09(2023)202
Publication status	Published - Sept 2023

Keywords

Branching fraction
CP Violation
Flavour Physics
Hadron-Hadron Scattering

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10.1007/JHEP09(2023)202

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@article{f01b3f23dbe34d02bda61b80c9038bbb,

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 (Formula Presented.) meson are analysed by reconstructing only the D0 or (Formula Presented.) decay products. This paper presents the first measurement of (Formula Presented.) and (Formula Presented.), 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 = "Branching fraction, CP Violation, Flavour Physics, Hadron-Hadron Scattering",

author = "\{The LHCb collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n 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 \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. 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 \{Bachiller Perea\}, \{I. B.\} and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-reyre and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Calvo Gomez\}, M. and E. Golobardes and \{Valls Canudas\}, N. and X. Vilasis-Cardona",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2023.",

year = "2023",

month = sep,

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

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "9",

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TY - JOUR

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

AU - The LHCb collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, 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 - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

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 - Bachiller Perea, I. B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Calvo Gomez, M.

AU - Golobardes, E.

AU - Valls Canudas, N.

AU - Vilasis-Cardona, X.

PY - 2023/9

Y1 - 2023/9

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 (Formula Presented.) meson are analysed by reconstructing only the D0 or (Formula Presented.) decay products. This paper presents the first measurement of (Formula Presented.) and (Formula Presented.), 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 (Formula Presented.) meson are analysed by reconstructing only the D0 or (Formula Presented.) decay products. This paper presents the first measurement of (Formula Presented.) and (Formula Presented.), 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 - Branching fraction

KW - CP Violation

KW - Flavour Physics

KW - Hadron-Hadron Scattering

UR - https://www.scopus.com/pages/publications/85183691626

U2 - 10.1007/JHEP09(2023)202

DO - 10.1007/JHEP09(2023)202

M3 - Article

AN - SCOPUS:85183691626

SN - 1126-6708

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

M1 - 202

ER -

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

Abstract

Keywords

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