Search for CP violation in Λb                         0→pK− and Λb                         0→pπ− decays

LHCb Collaboration

doi:10.1016/j.physletb.2018.10.039

Search for CP violation in Λ_b ⁰→pK⁻ and Λ_b ⁰→pπ⁻ decays

LHCb Collaboration

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

29 Citas (Scopus)

Resumen

A search for CP violation in Λ_b ⁰→pK⁻ and Λ_b ⁰→pπ⁻ decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb⁻¹. The CP -violating asymmetries are measured to be A_CP ^pK⁻=−0.020±0.013±0.019 and A_CP ^pπ⁻=−0.035±0.017±0.020, and their difference A_CP ^pK⁻−A_CP ^pπ⁻=0.014±0.022±0.010, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date.

Idioma original	Inglés
Páginas (desde-hasta)	124-133
Número de páginas	10
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	787
DOI	https://doi.org/10.1016/j.physletb.2018.10.039
Estado	Publicada - 10 dic. 2018
Publicado de forma externa	Sí

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@article{d2375b599a1e4f14ba79f9a811e863ea,

title = "Search for CP violation in Λb 0→pK− and Λb 0→pπ− decays",

abstract = "A search for CP violation in Λb 0→pK− and Λb 0→pπ− decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb−1. The CP -violating asymmetries are measured to be ACP pK− =−0.020±0.013±0.019 and ACP pπ− =−0.035±0.017±0.020, and their difference ACP pK− −ACP pπ− =0.014±0.022±0.010, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date.",

author = "\{LHCb Collaboration\} and R. Aaij 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 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 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 S. Barsuk and W. Barter and F. Baryshnikov and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and J. Beddow and Milanes, \{D. A.\} and E. Shmanin",

note = "Publisher Copyright: {\textcopyright} 2018 The Author(s)",

year = "2018",

month = dec,

day = "10",

doi = "10.1016/j.physletb.2018.10.039",

language = "English",

volume = "787",

pages = "124--133",

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

issn = "0370-2693",

}

TY - JOUR

T1 - Search for CP violation in Λb 0→pK− and Λb 0→pπ− decays

AU - LHCb Collaboration

AU - Aaij, R.

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 - 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 - 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 - Barsuk, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Beddow, J.

AU - Milanes, D. A.

AU - Shmanin, E.

PY - 2018/12/10

Y1 - 2018/12/10

N2 - A search for CP violation in Λb 0→pK− and Λb 0→pπ− decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb−1. The CP -violating asymmetries are measured to be ACP pK− =−0.020±0.013±0.019 and ACP pπ− =−0.035±0.017±0.020, and their difference ACP pK− −ACP pπ− =0.014±0.022±0.010, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date.

AB - A search for CP violation in Λb 0→pK− and Λb 0→pπ− decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb−1. The CP -violating asymmetries are measured to be ACP pK− =−0.020±0.013±0.019 and ACP pπ− =−0.035±0.017±0.020, and their difference ACP pK− −ACP pπ− =0.014±0.022±0.010, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date.

UR - https://www.scopus.com/pages/publications/85055747508

U2 - 10.1016/j.physletb.2018.10.039

DO - 10.1016/j.physletb.2018.10.039

M3 - Article

AN - SCOPUS:85055747508

SN - 0370-2693

VL - 787

SP - 124

EP - 133

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

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

ER -

Search for CP violation in Λb 0→pK− and Λb 0→pπ− decays

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Search for CP violation in Λ_b ⁰→pK⁻ and Λ_b ⁰→pπ⁻ decays