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Observation of the suppressed decay Λb 0 → pπ − μ + μ −. / The LHCb Collaboration.

In: Journal of High Energy Physics, Vol. 2017, No. 4, 029, 01.04.2017.

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

Harvard

The LHCb Collaboration 2017, 'Observation of the suppressed decay Λb 0 → pπ − μ + μ −', Journal of High Energy Physics, vol. 2017, no. 4, 029. https://doi.org/10.1007/JHEP04(2017)029

APA

The LHCb Collaboration (2017). Observation of the suppressed decay Λb 0 → pπ − μ + μ −. Journal of High Energy Physics, 2017(4), [029]. https://doi.org/10.1007/JHEP04(2017)029

Vancouver

The LHCb Collaboration. Observation of the suppressed decay Λb 0 → pπ − μ + μ −. Journal of High Energy Physics. 2017 Apr 1;2017(4):029. doi: 10.1007/JHEP04(2017)029

Author

The LHCb Collaboration. / Observation of the suppressed decay Λb 0 → pπ − μ + μ −. In: Journal of High Energy Physics. 2017 ; Vol. 2017, No. 4.

BibTeX

@article{eb8fa0dbc6b048f5af3f7b96cb4e024f,
title = "Observation of the suppressed decay Λb 0 → pπ − μ + μ −",
abstract = "The suppressed decay Λb 0 → pπ−μ+μ−, excluding the J/ψ and ψ(2S) → μ+μ− resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb experiment. The Λb 0 → pπ−μ+μ− branching fraction is measured relative to the Λb 0 → J/ψ(→μ+μ−)pπ− branching fraction givingℬ(Λb0→pπ−μ+μ−)ℬ(Λb0→J/ψ(→μ+μ−)pπ−)=0.044±0.012±0.007, where the first uncertainty is statistical and the second is systematic. This is the first observation of a b → d transition in a baryonic decay.",
keywords = "B physics, Branching fraction, Flavour Changing Neutral Currents, Hadron-Hadron scattering (experiments), Rare decay, TOOL",
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{\textquoteright}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",
year = "2017",
month = apr,
day = "1",
doi = "10.1007/JHEP04(2017)029",
language = "English",
volume = "2017",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "4",

}

RIS

TY - JOUR

T1 - Observation of the suppressed decay Λb 0 → pπ − μ + μ −

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 - 2017/4/1

Y1 - 2017/4/1

N2 - The suppressed decay Λb 0 → pπ−μ+μ−, excluding the J/ψ and ψ(2S) → μ+μ− resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb experiment. The Λb 0 → pπ−μ+μ− branching fraction is measured relative to the Λb 0 → J/ψ(→μ+μ−)pπ− branching fraction givingℬ(Λb0→pπ−μ+μ−)ℬ(Λb0→J/ψ(→μ+μ−)pπ−)=0.044±0.012±0.007, where the first uncertainty is statistical and the second is systematic. This is the first observation of a b → d transition in a baryonic decay.

AB - The suppressed decay Λb 0 → pπ−μ+μ−, excluding the J/ψ and ψ(2S) → μ+μ− resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb experiment. The Λb 0 → pπ−μ+μ− branching fraction is measured relative to the Λb 0 → J/ψ(→μ+μ−)pπ− branching fraction givingℬ(Λb0→pπ−μ+μ−)ℬ(Λb0→J/ψ(→μ+μ−)pπ−)=0.044±0.012±0.007, where the first uncertainty is statistical and the second is systematic. This is the first observation of a b → d transition in a baryonic decay.

KW - B physics

KW - Branching fraction

KW - Flavour Changing Neutral Currents

KW - Hadron-Hadron scattering (experiments)

KW - Rare decay

KW - TOOL

UR - http://www.scopus.com/inward/record.url?scp=85017419929&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2017)029

DO - 10.1007/JHEP04(2017)029

M3 - Article

AN - SCOPUS:85017419929

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 4

M1 - 029

ER -

ID: 10039010