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

R. Aaij; B. Adeva; M. Adinolfi; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; LA Everse; L. Anderlini; G. Andreassi; M. Andreotti; J.E. Andrews; R. B. Appleby; F. Archilli; P. d’Argent; J. Arnau Romeu; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; I. Babuschkin; K. Carvalho Akiba; V. Coco; P. N.Y. David; K. De Bruyn; M. Ferro-Luzzi; T. Ketel; R. F. Koopman; J. van Leerdam; M. Merk; C. J.G. Onderwater; G. Raven; M. Schiller; N. Serra; H. Snoek; B. Storaci; V. Syropoulos; J. van Tilburg; S. Tolk; P. Tsopelas; N. Tuning; LHCb Collaboration

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

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

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, LA Everse, L. Anderlini, G. Andreassi, M. Andreotti, J.E. AndrewsR. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, I. Babuschkin, K. Carvalho Akiba, V. Coco, P. N.Y. David, K. De Bruyn, M. Ferro-Luzzi, T. Ketel, R. F. Koopman, J. van Leerdam, M. Merk, C. J.G. Onderwater, G. Raven, M. Schiller, N. Serra, H. Snoek, B. Storaci, V. Syropoulos, J. van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, LHCb Collaboration

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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.

Original language	English
Article number	224
Journal	European Physical Journal C. Particles and Fields
Volume	77
Issue number	4
DOIs	https://doi.org/10.1140/epjc/s10052-017-4744-6
Publication status	Published - 10 Apr 2017

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Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., Everse, LA., Anderlini, L., Andreassi, G., Andreotti, M., ... LHCb Collaboration (2017). Search for massive long-lived particles decaying semileptonically in the LHCb detector. European Physical Journal C. Particles and Fields, 77(4), Article 224. https://doi.org/10.1140/epjc/s10052-017-4744-6

@article{e84f9699bc374c2783867c2803663b00,

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 = "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 LA Everse and L. Anderlini and G. Andreassi and M. Andreotti and J.E. Andrews 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 {Carvalho Akiba}, K. and V. Coco and David, {P. N.Y.} and {De Bruyn}, K. and M. Ferro-Luzzi and T. Ketel and Koopman, {R. F.} and {van Leerdam}, J. and M. Merk and Onderwater, {C. J.G.} and G. Raven and M. Schiller and N. Serra and H. Snoek and B. Storaci and V. Syropoulos and {van Tilburg}, J. and S. Tolk and P. Tsopelas and N. Tuning and {LHCb Collaboration}",

year = "2017",

month = apr,

day = "10",

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

language = "English",

volume = "77",

journal = "European Physical Journal C. Particles and Fields",

issn = "1434-6044",

publisher = "Springer New York",

number = "4",

}

Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, Everse, LA, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Carvalho Akiba, K, Coco, V, David, PNY, De Bruyn, K, Ferro-Luzzi, M, Ketel, T, Koopman, RF, van Leerdam, J, Merk, M, Onderwater, CJG, Raven, G, Schiller, M, Serra, N, Snoek, H, Storaci, B, Syropoulos, V, van Tilburg, J, Tolk, S, Tsopelas, P, Tuning, N & LHCb Collaboration 2017, 'Search for massive long-lived particles decaying semileptonically in the LHCb detector', European Physical Journal C. Particles and Fields, vol. 77, no. 4, 224. https://doi.org/10.1140/epjc/s10052-017-4744-6

TY - JOUR

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

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 - Everse, LA

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 - Carvalho Akiba, K.

AU - Coco, V.

AU - David, P. N.Y.

AU - De Bruyn, K.

AU - Ferro-Luzzi, M.

AU - Ketel, T.

AU - Koopman, R. F.

AU - van Leerdam, J.

AU - Merk, M.

AU - Onderwater, C. J.G.

AU - Raven, G.

AU - Schiller, M.

AU - Serra, N.

AU - Snoek, H.

AU - Storaci, B.

AU - Syropoulos, V.

AU - van Tilburg, J.

AU - Tolk, S.

AU - Tsopelas, P.

AU - Tuning, N.

AU - LHCb Collaboration

PY - 2017/4/10

Y1 - 2017/4/10

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.

UR - http://www.scopus.com/inward/record.url?scp=85017327230&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017327230&partnerID=8YFLogxK

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. Particles and Fields

JF - European Physical Journal C. Particles and Fields

IS - 4

M1 - 224

ER -

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

Abstract

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