Search for CP violation in the phase space of D0 → π+π−π+π− decays

Standard

Search for CP violation in the phase space of D⁰ → π⁺π⁻π⁺π⁻ decays. / The LHCb Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 769, 10.06.2017, p. 345-356.

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

Harvard

The LHCb Collaboration 2017, 'Search for CP violation in the phase space of D⁰ → π⁺π⁻π⁺π⁻ decays', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 769, pp. 345-356. https://doi.org/10.1016/j.physletb.2017.03.062

APA

The LHCb Collaboration (2017). Search for CP violation in the phase space of D⁰ → π⁺π⁻π⁺π⁻ decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 769, 345-356. https://doi.org/10.1016/j.physletb.2017.03.062

Vancouver

The LHCb Collaboration. Search for CP violation in the phase space of D⁰ → π⁺π⁻π⁺π⁻ decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 Jun 10;769:345-356. doi: 10.1016/j.physletb.2017.03.062

Author

The LHCb Collaboration. / Search for CP violation in the phase space of D⁰ → π⁺π⁻π⁺π⁻ decays. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 ; Vol. 769. pp. 345-356.

BibTeX

@article{ab7c6f478a5f45b9b62bc9136b3b9712,

title = "Search for CP violation in the phase space of D0 → π+π−π+π− decays",

abstract = "A search for time-integrated CP violation in the Cabibbo-suppressed decay D0→π+π−π+π− is performed using an unbinned, model-independent technique known as the energy test. This is the first application of the energy test in four-body decays. The search is performed for P-even CP asymmetries and, for the first time, is extended to probe the P-odd case. Using proton–proton collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb detector at centre-of-mass energies of s=7 TeV and 8 TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (4.6±0.5)% in the P-even case, and marginally consistent with a p-value of (0.6±0.2)% in the P-odd case, corresponding to a significance for CP non-conservation of 2.7 standard deviations.",

keywords = "PRODUCTION ASYMMETRY",

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 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 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 W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and M. Baszczyk and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and A. Bondar and S. Eidelman and P. Krokovny and L. Shekhtman and V. Vorobyev",

note = "Publisher Copyright: {\textcopyright} 2017 The Author(s)",

year = "2017",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2017.03.062",

language = "English",

volume = "769",

pages = "345--356",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Search for CP violation in the phase space of D0 → π+π−π+π− decays

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 - 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 - 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 - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Baszczyk, M.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Bondar, A.

AU - Eidelman, S.

AU - Krokovny, P.

AU - Shekhtman, L.

AU - Vorobyev, V.

PY - 2017/6/10

Y1 - 2017/6/10

N2 - A search for time-integrated CP violation in the Cabibbo-suppressed decay D0→π+π−π+π− is performed using an unbinned, model-independent technique known as the energy test. This is the first application of the energy test in four-body decays. The search is performed for P-even CP asymmetries and, for the first time, is extended to probe the P-odd case. Using proton–proton collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb detector at centre-of-mass energies of s=7 TeV and 8 TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (4.6±0.5)% in the P-even case, and marginally consistent with a p-value of (0.6±0.2)% in the P-odd case, corresponding to a significance for CP non-conservation of 2.7 standard deviations.

AB - A search for time-integrated CP violation in the Cabibbo-suppressed decay D0→π+π−π+π− is performed using an unbinned, model-independent technique known as the energy test. This is the first application of the energy test in four-body decays. The search is performed for P-even CP asymmetries and, for the first time, is extended to probe the P-odd case. Using proton–proton collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb detector at centre-of-mass energies of s=7 TeV and 8 TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (4.6±0.5)% in the P-even case, and marginally consistent with a p-value of (0.6±0.2)% in the P-odd case, corresponding to a significance for CP non-conservation of 2.7 standard deviations.

KW - PRODUCTION ASYMMETRY

UR - http://www.scopus.com/inward/record.url?scp=85017437598&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2017.03.062

DO - 10.1016/j.physletb.2017.03.062

M3 - Article

AN - SCOPUS:85017437598

VL - 769

SP - 345

EP - 356

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -

ID: 10263712