Search for CP violation using T-odd correlations in D0→ K+K-π+π-decays

The Lhcb Collaboration

doi:10.1007/JHEP10(2014)005

Search for CP violation using T-odd correlations in D⁰→ K⁺K^-π⁺π^-decays

The Lhcb Collaboration

Department of Physics

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

23 Scopus citations

Abstract

A search for CP violation using T-odd correlations is performed using the four-body D⁰→ K⁺K^-π⁺π⁻decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb^-1and 2.0 fb^-1recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D⁰decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.

Original language	English (US)
Article number	5
Pages (from-to)	1-21
Number of pages	21
Journal	Journal of High Energy Physics
Volume	2014
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2014)005
State	Published - Oct 1 2014

Keywords

CP violation
Charm physics
Flavor physics
Hadron-Hadron Scattering

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP10(2014)005

Cite this

@article{a9787d4c93bf4e09a33ef3847c55c168,

title = "Search for CP violation using T-odd correlations in D0→ K+K-π+π-decays",

abstract = "A search for CP violation using T-odd correlations is performed using the four-body D0→ K+K-π+π−decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb-1and 2.0 fb-1recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D0decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.",

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

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 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 S. Blusk and {Silva Coutinho}, R. and T. Skwarnicki and S. Stone",

year = "2014",

month = oct,

day = "1",

doi = "10.1007/JHEP10(2014)005",

language = "English (US)",

volume = "2014",

pages = "1--21",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "10",

}

TY - JOUR

T1 - Search for CP violation using T-odd correlations in D0→ K+K-π+π-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 - 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 - Blusk, S.

AU - Silva Coutinho, R.

AU - Skwarnicki, T.

AU - Stone, S.

PY - 2014/10/1

Y1 - 2014/10/1

N2 - A search for CP violation using T-odd correlations is performed using the four-body D0→ K+K-π+π−decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb-1and 2.0 fb-1recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D0decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.

AB - A search for CP violation using T-odd correlations is performed using the four-body D0→ K+K-π+π−decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb-1and 2.0 fb-1recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D0decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.

KW - CP violation

KW - Charm physics

KW - Flavor physics

KW - Hadron-Hadron Scattering

UR - http://www.scopus.com/inward/record.url?scp=84959855245&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959855245&partnerID=8YFLogxK

U2 - 10.1007/JHEP10(2014)005

DO - 10.1007/JHEP10(2014)005

M3 - Article

AN - SCOPUS:84959855245

SN - 1126-6708

VL - 2014

SP - 1

EP - 21

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 5

ER -