Measurement of the CP asymmetry in B ⁻ → D_s ⁻ D ⁰ and B ⁻ → D ⁻ D ⁰ decays

The LHCb Collaboration

Research School of High-Energy Physics

Research output: Contribution to journal › Article

Abstract

The CP asymmetry in B⁻ → D_s ⁻D⁰ and B⁻ → D⁻D⁰ decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb⁻¹, collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are ACP(B−→Ds−D0)=(−0.4±0.5±0.5)%andACP(B−→D−D0)=(2.3±2.7±0.4)%, where the first uncertainties are statistical and the second systematic. This is the first measurement of ACP(B−→Ds−D0) and the most precise determination of A^C ^P(B⁻→ D⁻D⁰). Neither result shows evidence of CP violation.

Original language	English
Article number	160
Journal	Journal of High Energy Physics
Volume	2018
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2018)160
Publication status	Published - 1 May 2018

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Keywords

B physics
CP violation
Flavor physics
Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

The LHCb Collaboration (2018). Measurement of the CP asymmetry in B ⁻ → D_s ⁻ D ⁰ and B ⁻ → D ⁻ D ⁰ decays. Journal of High Energy Physics, 2018(5), [160]. https://doi.org/10.1007/JHEP05(2018)160

@article{4276b17154ce47a3b49aaad16778dda6,

title = "Measurement of the CP asymmetry in B − → Ds − D 0 and B − → D − D 0 decays",

abstract = "The CP asymmetry in B− → Ds −D0 and B− → D−D0 decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb−1, collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are ACP(B−→Ds−D0)=(−0.4±0.5±0.5)%andACP(B−→D−D0)=(2.3±2.7±0.4)%, where the first uncertainties are statistical and the second systematic. This is the first measurement of ACP(B−→Ds−D0) and the most precise determination of AC P(B−→ D−D0). Neither result shows evidence of CP violation.",

keywords = "B physics, CP violation, Flavor physics, Hadron-Hadron scattering (experiments)",

author = "{The LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. d{\textquoteright}Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and G. Auriemma and S. Bachmann and Back, {J. J.} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and S. Barsuk and W. Barter and F. Baryshnikov and V. Batozskaya and V. Battista and A. Bay and J. Beddow and F. Bedeschi and A. Mazurov and A. Petrov and S. Strokov and A. Vagner",

year = "2018",

month = may

day = "1",

doi = "10.1007/JHEP05(2018)160",

language = "English",

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T1 - Measurement of the CP asymmetry in B − → Ds − D 0 and B − → D − D 0 decays

AU - The LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - d’Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Mazurov, A.

AU - Petrov, A.

AU - Strokov, S.

AU - Vagner, A.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The CP asymmetry in B− → Ds −D0 and B− → D−D0 decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb−1, collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are ACP(B−→Ds−D0)=(−0.4±0.5±0.5)%andACP(B−→D−D0)=(2.3±2.7±0.4)%, where the first uncertainties are statistical and the second systematic. This is the first measurement of ACP(B−→Ds−D0) and the most precise determination of AC P(B−→ D−D0). Neither result shows evidence of CP violation.

AB - The CP asymmetry in B− → Ds −D0 and B− → D−D0 decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb−1, collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are ACP(B−→Ds−D0)=(−0.4±0.5±0.5)%andACP(B−→D−D0)=(2.3±2.7±0.4)%, where the first uncertainties are statistical and the second systematic. This is the first measurement of ACP(B−→Ds−D0) and the most precise determination of AC P(B−→ D−D0). Neither result shows evidence of CP violation.

KW - B physics

KW - CP violation

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

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U2 - 10.1007/JHEP05(2018)160

DO - 10.1007/JHEP05(2018)160

M3 - Article

AN - SCOPUS:85047979157

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 5

M1 - 160

ER -

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10.1007/JHEP05(2018)160