Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π

Standard

Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -. / The LHCb Collaboration.

In: Physical Review D, Vol. 97, No. 3, 031101, 22.02.2018.

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

Harvard

The LHCb Collaboration 2018, 'Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -', Physical Review D, vol. 97, no. 3, 031101. https://doi.org/10.1103/PhysRevD.97.031101

APA

The LHCb Collaboration (2018). Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -. Physical Review D, 97(3), [031101]. https://doi.org/10.1103/PhysRevD.97.031101

Vancouver

The LHCb Collaboration. Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -. Physical Review D. 2018 Feb 22;97(3):031101. doi: 10.1103/PhysRevD.97.031101

Author

The LHCb Collaboration. / Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -. In: Physical Review D. 2018 ; Vol. 97, No. 3.

BibTeX

@article{dca3471d4a4d482d975fafde25a0bf1c,

title = "Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -",

abstract = "We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of D0→K+π- to D0→K-π+ rates. The analysis uses a data sample of proton-proton collisions corresponding to an integrated luminosity of 5.0 fb-1 recorded by the LHCb experiment from 2011 through 2016. Assuming charge-parity (CP) symmetry, the mixing parameters are determined to be x′2=(3.9±2.7)×10-5, y′=(5.28±0.52)×10-3, and RD=(3.454±0.031)×10-3. Without this assumption, the measurement is performed separately for D0 and D0 mesons, yielding a direct CP-violating asymmetry AD=(-0.1±9.1)×10-3, and magnitude of the ratio of mixing parameters 1.00<|q/p|<1.35 at the 68.3% confidence level. All results include statistical and systematic uncertainties and improve significantly upon previous single-measurement determinations. No evidence for CP violation in charm mixing is observed.",

author = "{The LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar 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'Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and BacK, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and C. Barschel and S. BarsuK and W. Barter and F. Baryshnikov and V. Batozskaya and A. Bondar and S. Eidelman and P. Krokovny and V. Vorobyev",

note = "Publisher Copyright: {\textcopyright} 2018 authors.",

year = "2018",

month = feb,

day = "22",

doi = "10.1103/PhysRevD.97.031101",

language = "English",

volume = "97",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "3",

}

RIS

TY - JOUR

T1 - Updated determination of D 0 - D 0 mixing and C P violation parameters with D 0 → K + π -

AU - The LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

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 - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - BacK, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barschel, C.

AU - BarsuK, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Bondar, A.

AU - Eidelman, S.

AU - Krokovny, P.

AU - Vorobyev, V.

PY - 2018/2/22

Y1 - 2018/2/22

N2 - We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of D0→K+π- to D0→K-π+ rates. The analysis uses a data sample of proton-proton collisions corresponding to an integrated luminosity of 5.0 fb-1 recorded by the LHCb experiment from 2011 through 2016. Assuming charge-parity (CP) symmetry, the mixing parameters are determined to be x′2=(3.9±2.7)×10-5, y′=(5.28±0.52)×10-3, and RD=(3.454±0.031)×10-3. Without this assumption, the measurement is performed separately for D0 and D0 mesons, yielding a direct CP-violating asymmetry AD=(-0.1±9.1)×10-3, and magnitude of the ratio of mixing parameters 1.00<|q/p|<1.35 at the 68.3% confidence level. All results include statistical and systematic uncertainties and improve significantly upon previous single-measurement determinations. No evidence for CP violation in charm mixing is observed.

AB - We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of D0→K+π- to D0→K-π+ rates. The analysis uses a data sample of proton-proton collisions corresponding to an integrated luminosity of 5.0 fb-1 recorded by the LHCb experiment from 2011 through 2016. Assuming charge-parity (CP) symmetry, the mixing parameters are determined to be x′2=(3.9±2.7)×10-5, y′=(5.28±0.52)×10-3, and RD=(3.454±0.031)×10-3. Without this assumption, the measurement is performed separately for D0 and D0 mesons, yielding a direct CP-violating asymmetry AD=(-0.1±9.1)×10-3, and magnitude of the ratio of mixing parameters 1.00<|q/p|<1.35 at the 68.3% confidence level. All results include statistical and systematic uncertainties and improve significantly upon previous single-measurement determinations. No evidence for CP violation in charm mixing is observed.

UR - http://www.scopus.com/inward/record.url?scp=85043381506&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.97.031101

DO - 10.1103/PhysRevD.97.031101

M3 - Article

AN - SCOPUS:85043381506

VL - 97

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 031101

ER -

ID: 13468279