Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays

LHCb Collaboration; Robert Appleby; William Barter; Silvia Borghi; Christopher Burr; Lorenzo Capriotti; Stefano De Capua; Deepanwita Dutta; Marco Gersabeck; Lucia Grillo; George Lafferty; Andrew Mcnab; Kevin Maguire; Christopher Parkes; Gediminas Sarpis; Mark Williams

doi:10.1007/JHEP05(2018)160

Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays

LHCb Collaboration, Robert Appleby, William Barter, Silvia Borghi, Christopher Burr, Lorenzo Capriotti, Stefano De Capua, Deepanwita Dutta, Marco Gersabeck, Lucia Grillo, George Lafferty, Andrew Mcnab, Kevin Maguire, Christopher Parkes, Gediminas Sarpis, Mark Williams

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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−→D−s D0) =(−0.4 ± 0.5 ± 0.5)% and ACP (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− → D−s D0) and the most precise determination of ACP (B− → D−D0). Neither result shows evidence of CP violation

Original language	English
Journal	Journal of High Energy Physics
Early online date	25 May 2018
DOIs	https://doi.org/10.1007/JHEP05(2018)160
Publication status	Published - 2018

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LHCb Collaboration, Appleby, R., Barter, W., Borghi, S., Burr, C., Capriotti, L., De Capua, S., Dutta, D., Gersabeck, M., Grillo, L., Lafferty, G., Mcnab, A., Maguire, K., Parkes, C., Sarpis, G., & Williams, M. (2018). Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays. Journal of High Energy Physics. https://doi.org/10.1007/JHEP05(2018)160

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title = "Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays",

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−→D−s D0) =(−0.4 ± 0.5 ± 0.5)% and ACP (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− → D−s D0) and the most precise determination of ACP (B− → D−D0). Neither result shows evidence of CP violation",

author = "{LHCb Collaboration} and Robert Appleby and William Barter and Silvia Borghi and Christopher Burr and Lorenzo Capriotti and {De Capua}, Stefano and Deepanwita Dutta and Marco Gersabeck and Lucia Grillo and George Lafferty and Andrew Mcnab and Kevin Maguire and Christopher Parkes and Gediminas Sarpis and Mark Williams",

year = "2018",

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

language = "English",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Nature",

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TY - JOUR

T1 - Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays

AU - LHCb Collaboration

AU - Appleby, Robert

AU - Barter, William

AU - Borghi, Silvia

AU - Burr, Christopher

AU - Capriotti, Lorenzo

AU - De Capua, Stefano

AU - Dutta, Deepanwita

AU - Gersabeck, Marco

AU - Grillo, Lucia

AU - Lafferty, George

AU - Mcnab, Andrew

AU - Maguire, Kevin

AU - Parkes, Christopher

AU - Sarpis, Gediminas

AU - Williams, Mark

PY - 2018

Y1 - 2018

N2 - 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−→D−s D0) =(−0.4 ± 0.5 ± 0.5)% and ACP (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− → D−s D0) and the most precise determination of ACP (B− → D−D0). Neither result shows evidence of CP violation

AB - 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−→D−s D0) =(−0.4 ± 0.5 ± 0.5)% and ACP (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− → D−s D0) and the most precise determination of ACP (B− → D−D0). Neither result shows evidence of CP violation

U2 - 10.1007/JHEP05(2018)160

DO - 10.1007/JHEP05(2018)160

M3 - Article

SN - 1126-6708

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

ER -

Measurement of the CP asymmetry in B− → D− s D0 and B− → D−D0 decays

Abstract

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