Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π−π+ decays using semileptonic B decays

The LHCb collaboration

doi:10.1007/JHEP04(2015)043

Measurement of indirect CP asymmetries in D⁰ → K⁻K⁺ and D⁰ → π⁻π⁺ decays using semileptonic B decays

The LHCb collaboration

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

40 Scopus citations

Abstract

Abstract: Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D⁰ → K⁻K⁺ and D⁰ → π⁻π⁺ are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb⁻¹ collected by the LHCb experiment. The D⁰ mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D⁰ or (Formula presented.). The asymmetries in effective lifetimes between D⁰ and (Formula presented.)

(Formula presented.)

where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D⁰ decays.[Figure not available: see fulltext.]

Original language	English
Article number	43
Journal	Journal of High Energy Physics
Volume	2015
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2015)043
State	Published - 1 Apr 2015
Externally published	Yes

Keywords

CP violation
Charm physics
Hadron-Hadron Scattering
Lifetime

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10.1007/JHEP04(2015)043

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@article{4b1a9393ac1044da84aa7cd71da6450c,

title = "Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π−π+ decays using semileptonic B decays",

abstract = "Abstract: Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D0 → K−K+ and D0 → π−π+ are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D0 or (Formula presented.). The asymmetries in effective lifetimes between D0 and (Formula presented.)(Formula presented.)where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D0 decays.[Figure not available: see fulltext.]",

keywords = "CP violation, Charm physics, Hadron-Hadron Scattering, Lifetime",

author = "\{The LHCb collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander 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 J. Anderson and R. Andreassen and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and \{Aquines Gutierrez\}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, \{J. J.\} and A. Badalov and C. Baesso and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and I. Belyaev and E. Ben-Haim and Milanes, \{D. A.\}",

note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",

year = "2015",

month = apr,

day = "1",

doi = "10.1007/JHEP04(2015)043",

language = "English",

volume = "2015",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "4",

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TY - JOUR

T1 - Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π−π+ decays using semileptonic B decays

AU - The LHCb collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

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 - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Milanes, D. A.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Abstract: Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D0 → K−K+ and D0 → π−π+ are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D0 or (Formula presented.). The asymmetries in effective lifetimes between D0 and (Formula presented.)(Formula presented.)where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D0 decays.[Figure not available: see fulltext.]

AB - Abstract: Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D0 → K−K+ and D0 → π−π+ are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D0 or (Formula presented.). The asymmetries in effective lifetimes between D0 and (Formula presented.)(Formula presented.)where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D0 decays.[Figure not available: see fulltext.]

KW - CP violation

KW - Charm physics

KW - Hadron-Hadron Scattering

KW - Lifetime

UR - https://www.scopus.com/pages/publications/84973508285

U2 - 10.1007/JHEP04(2015)043

DO - 10.1007/JHEP04(2015)043

M3 - Article

AN - SCOPUS:84973508285

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 43

ER -

Measurement of indirect CP asymmetries in D⁰ → K⁻K⁺ and D⁰ → π⁻π⁺ decays using semileptonic B decays

Abstract

Keywords

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