Search for massive long-lived particles decaying semileptonically in the LHCb detector

LHCb Collaboration

doi:10.1140/epjc/s10052-017-4744-6

Search for massive long-lived particles decaying semileptonically in the LHCb detector

LHCb Collaboration

European Organization for Nuclear Research
University Santiago de Compostela
University of Bristol
Clermont-Auvergne University
Aix-Marseille Université
University of Dortmund
University of Glasgow
Science Park 105
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
University of Cincinnati
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
ENAC-IIC-GEL
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
University of Maryland, College Park
University of Manchester
University of Heidelberg
Kurchatov Institute
Syracuse University
Sezione di Roma
University of Warwick
University of Barcelona
Pontifícia Universidade Católica do Rio de Janeiro
Institute for Nuclear Physics
National Centre for Nuclear Research (NCBJ)
Université Savoie Mont Blanc
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Centro Brasileiro de Pesquisas Fisicas
INFN Sezione di Milano-Bicocca
Institute for Theoretical and Experimental Physics
Universités Paris VI and VII
LNF-INFN
Moscow State University
University of Zurich
INFN Sezione di Bologna
University of Birmingham
Max-Planck-Institut für Kernphysik
Massachusetts Institute of Technology
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Sezione INFN di Cagliari
Yandex School of Data Analysis
RWTH Aachen University
University of Liverpool
Sezione di Genova
University of Edinburgh
University of Oxford
University of Cambridge
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Bari
Agh University of Science and Technology Faculty of Computer Science
Sezione INFN di Milano
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
Tsinghua University
University of Valencia
Universität Rostock
University of Chinese Academy of Sciences
Vrije Universiteit Amsterdam
Institute of Nuclear Research, National Academy of Sciences in Ukraine
Kurchatov Institute
University College Dublin
Universidad Nacional de Colombia
ICS/University of Groningen
Wuhan University
Central China Normal University

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb-1, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV / c²and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c²range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models.

langue originale	Anglais
Numéro d'article	224
journal	European Physical Journal C
Volume	77
Numéro de publication	4
Les DOIs	https://doi.org/10.1140/epjc/s10052-017-4744-6
état	Publié - 1 avr. 2017
Modification externe	Oui

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10.1140/epjc/s10052-017-4744-6

Contient cette citation

@article{67a8fff4c5f34e0da28dc0006aea5264,

title = "Search for massive long-lived particles decaying semileptonically in the LHCb detector",

abstract = "A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb-1, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV / c2and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c2range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models.",

author = "\{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 L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and F. Fleuret",

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

year = "2017",

month = apr,

day = "1",

doi = "10.1140/epjc/s10052-017-4744-6",

language = "English",

volume = "77",

journal = "European Physical Journal C",

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TY - JOUR

T1 - Search for massive long-lived particles decaying semileptonically in the LHCb detector

AU - 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 - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Fleuret, F.

PY - 2017/4/1

Y1 - 2017/4/1

N2 - A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb-1, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV / c2and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c2range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models.

AB - A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb-1, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV / c2and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c2range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models.

U2 - 10.1140/epjc/s10052-017-4744-6

DO - 10.1140/epjc/s10052-017-4744-6

M3 - Article

AN - SCOPUS:85017327230

SN - 1434-6044

VL - 77

JO - European Physical Journal C

JF - European Physical Journal C

IS - 4

M1 - 224

ER -

Search for massive long-lived particles decaying semileptonically in the LHCb detector

Résumé

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