Search for CP violation through an amplitude analysis of D 0 → K + K − π + π − decays

Search for CP violation through an amplitude analysis of D ⁰ → K ⁺ K ⁻ π ⁺ π ⁻ decays. / The LHCb Collaboration.

In: Journal of High Energy Physics, Vol. 2019, No. 2, 126, 01.02.2019.

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

The LHCb Collaboration 2019, 'Search for CP violation through an amplitude analysis of D ⁰ → K ⁺ K ⁻ π ⁺ π ⁻ decays', Journal of High Energy Physics, vol. 2019, no. 2, 126. https://doi.org/10.1007/JHEP02(2019)126

The LHCb Collaboration (2019). Search for CP violation through an amplitude analysis of D ⁰ → K ⁺ K ⁻ π ⁺ π ⁻ decays. Journal of High Energy Physics, 2019(2), [126]. https://doi.org/10.1007/JHEP02(2019)126

The LHCb Collaboration. Search for CP violation through an amplitude analysis of D ⁰ → K ⁺ K ⁻ π ⁺ π ⁻ decays. Journal of High Energy Physics. 2019 Feb 1;2019(2):126. doi: 10.1007/JHEP02(2019)126

The LHCb Collaboration. / Search for CP violation through an amplitude analysis of D ⁰ → K ⁺ K ⁻ π ⁺ π ⁻ decays. In: Journal of High Energy Physics. 2019 ; Vol. 2019, No. 2.

@article{57c470fff7734fcda3be452dc82baeca,

title = "Search for CP violation through an amplitude analysis of D 0 → K + K − π + π − decays",

abstract = " A search for CP violation in the Cabibbo-suppressed D 0 → K + K − π + π − decay mode is performed using an amplitude analysis. The measurement uses a sample of pp collisions recorded by the LHCb experiment during 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb −1 . The D 0 mesons are reconstructed from semileptonic b-hadron decays into D 0 μ − X final states. The selected sample contains more than 160 000 signal decays, allowing the most precise amplitude modelling of this D 0 decay to date. The obtained amplitude model is used to perform the search for CP violation. The result is compatible with CP symmetry, with a sensitivity ranging from 1% to 15% depending on the amplitude considered.",

keywords = "Charm physics, CP violation, Flavor physics, Hadron-Hadron scattering (experiments), MODEL",

author = "{The LHCb Collaboration} and R. Aaij and {Abell{\'a}n Beteta}, C. and B. Adeva and M. Adinolfi and Aidala, {C. A.} and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. 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 F. Archilli and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, {J. J.} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and Barrand, {G. C.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and V. Batozskaya and B. Batsukh and A. Battig and A. Bondar and S. Eidelman and L. Shekhtman and V. Vorobyev",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s). Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = feb,

day = "1",

doi = "10.1007/JHEP02(2019)126",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer US",

number = "2",

}

TY - JOUR

T1 - Search for CP violation through an amplitude analysis of D 0 → K + K − π + π − decays

AU - The LHCb Collaboration

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

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 - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barrand, G. C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Bondar, A.

AU - Eidelman, S.

AU - Shekhtman, L.

AU - Vorobyev, V.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - A search for CP violation in the Cabibbo-suppressed D 0 → K + K − π + π − decay mode is performed using an amplitude analysis. The measurement uses a sample of pp collisions recorded by the LHCb experiment during 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb −1 . The D 0 mesons are reconstructed from semileptonic b-hadron decays into D 0 μ − X final states. The selected sample contains more than 160 000 signal decays, allowing the most precise amplitude modelling of this D 0 decay to date. The obtained amplitude model is used to perform the search for CP violation. The result is compatible with CP symmetry, with a sensitivity ranging from 1% to 15% depending on the amplitude considered.

AB - A search for CP violation in the Cabibbo-suppressed D 0 → K + K − π + π − decay mode is performed using an amplitude analysis. The measurement uses a sample of pp collisions recorded by the LHCb experiment during 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb −1 . The D 0 mesons are reconstructed from semileptonic b-hadron decays into D 0 μ − X final states. The selected sample contains more than 160 000 signal decays, allowing the most precise amplitude modelling of this D 0 decay to date. The obtained amplitude model is used to perform the search for CP violation. The result is compatible with CP symmetry, with a sensitivity ranging from 1% to 15% depending on the amplitude considered.

KW - Charm physics

KW - CP violation

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

KW - MODEL

UR - http://www.scopus.com/inward/record.url?scp=85062012900&partnerID=8YFLogxK

U2 - 10.1007/JHEP02(2019)126

DO - 10.1007/JHEP02(2019)126

M3 - Article

AN - SCOPUS:85062012900

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 2

M1 - 126

ER -

Search for CP violation through an amplitude analysis of D ⁰ → K ⁺ K ⁻ π ⁺ π ⁻ decays

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