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Search for lepton flavour violation at HERA

Aaron, F. D.; Alexa, C.; Andreev, V.; Backovic, S.; Baghdasaryan, A.; Baghdasaryan, S.; Barrelet, E.; Bartel, W.; Begzsuren, K. and Belousov, A., et al. (2011) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 701(1). p.20-30
Abstract
A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy root s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb(-1) of e(+)p and 166 pb(-1) of e(-)p collision data. No evidence for the production of such leptoquarks is observed in the H1 data. Leptoquarks produced in e(+/-)p collisions with a coupling strength of lambda = 0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95% confidence level up to leptoquark masses of 712 GeV and 479... (More)
A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy root s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb(-1) of e(+)p and 166 pb(-1) of e(-)p collision data. No evidence for the production of such leptoquarks is observed in the H1 data. Leptoquarks produced in e(+/-)p collisions with a coupling strength of lambda = 0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95% confidence level up to leptoquark masses of 712 GeV and 479 GeV, respectively. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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subject
keywords
Lepton flavor violation, Leptoquarks, Electron-proton scattering
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
701
issue
1
pages
20 - 30
publisher
Elsevier
external identifiers
  • wos:000292719700002
  • scopus:79959538004
ISSN
0370-2693
DOI
10.1016/j.physletb.2011.05.023
language
English
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yes
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02b40669-af33-457e-8a27-3746ba111108 (old id 2075645)
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2011-08-26 08:14:53
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2017-01-01 06:30:50
@article{02b40669-af33-457e-8a27-3746ba111108,
  abstract     = {A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy root s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb(-1) of e(+)p and 166 pb(-1) of e(-)p collision data. No evidence for the production of such leptoquarks is observed in the H1 data. Leptoquarks produced in e(+/-)p collisions with a coupling strength of lambda = 0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95% confidence level up to leptoquark masses of 712 GeV and 479 GeV, respectively. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Aaron, F. D. and Alexa, C. and Andreev, V. and Backovic, S. and Baghdasaryan, A. and Baghdasaryan, S. and Barrelet, E. and Bartel, W. and Begzsuren, K. and Belousov, A. and Belov, P. and Bizot, J. C. and Boudry, V. and Bozovic-Jelisavcic, I. and Bracinik, J. and Brandt, G. and Brinkmann, M. and Brisson, V. and Britzger, D. and Bruncko, D. and Bunyatyan, A. and Buschhorn, G. and Bystritskaya, L. and Campbell, A. J. and Avila, K. B. Cantun and Ceccopieri, F. and Cerny, K. and Cerny, V. and Chekelian, V. and Contreras, J. G. and Coughlan, J. A. and Cvach, J. and Dainton, J. B. and Daum, K. and Delcourt, B. and Delvax, J. and De Wolf, E. A. and Diaconu, C. and Dobre, M. and Dodonov, V. and Dossanov, A. and Dubak, A. and Eckerlin, G. and Egli, S. and Eliseev, A. and Eisen, E. and Favart, L. and Fedotov, A. and Felst, R. and Feltesse, J. and Ferencei, J. and Fischer, D. -J. and Fleischer, M. and Fomenko, A. and Gabathuler, E. and Gayler, J. and Ghazaryan, S. and Glazov, A. and Goerlich, L. and Gogitidze, N. and Gouzevitch, M. and Grab, C. and Grebenyuk, A. and Greenshaw, T. and Grell, B. R. and Grindhammer, G. and Habib, S. and Haidt, D. and Helebrant, C. and Henderson, R. C. W. and Hennekemper, E. and Henschel, H. and Herbst, M. and Herrera, G. and Hildebrandt, M. and Hiller, K. H. and Hoffmann, D. and Horisberger, R. and Hreus, T. and Huber, F. and Jacquet, M. and Janssen, X. and Jönsson, Leif and Jung, H. and Kapichine, M. and Kenyon, I. R. and Kiesling, C. and Klein, M. and Kleinwort, C. and Kluge, T. and Kogler, R. and Kostka, P. and Kraemer, M. and Kretzschmar, J. and Krueger, K. and Landon, M. P. J. and Lange, W. and Lastovicka-Medin, G. and Laycock, R. and Lebedev, A. and Lendermann, V. and Levonian, S. and Lipka, K. and List, B. and List, J. and Lopez-Fernandez, R. and Lubimov, V. and Makankine, A. and Malinovski, E. and Marage, P. and Martyn, H. -U. and Maxfield, S. J. and Mehta, A. and Meyer, A. B. and Meyer, H. and Meyer, J. and Mikocki, S. and Milcewicz-Mika, I. and Moreau, E. and Morozov, A. and Morris, J. V. and Mudrinic, M. and Mueller, K. and Naumann, Th. and Newman, P. R. and Niebuhr, C. and Nikitin, D. and Nowak, G. and Nowak, K. and Olsson, J. E. and Osman, Sakar and Ozerov, D. and Pahl, P. and Palichik, V. and Panagoulias, I. and Pandurovic, M. and Papadopoulou, Th. and Pascaud, C. and Patel, G. D. and Perez, E. and Petrukhin, A. and Picuric, I. and Piec, S. and Pirumov, H. and Pitzl, D. and Placakyte, R. and Pokorny, B. and Polifka, R. and Povh, B. and Radescu, V. and Raicevic, N. and Ravdandorj, T. and Reimer, P. and Rizvi, E. and Robmann, R. and Roosen, R. and Rostovtsev, A. and Rotaru, M. and Tabasco, J. E. Ruiz and Rusakov, S. and Salek, D. and Sankey, D. P. C. and Sauter, M. and Sauvan, E. and Schmitt, S. and Schoeffel, L. and Schoening, A. and Schultz-Coulon, H. -C. and Sefkow, E. and Shtarkov, L. N. and Shushkevich, S. and Sloan, T. and Smiljanic, I. and Soloviev, Y. and Sopicki, P. and South, D. and Spaskov, V. and Specka, A. and Staykova, Z. and Steder, M. and Stella, B. and Stoicea, G. and Straumann, U. and Sykora, T. and Thompson, P. D. and Toll, T. and Tran, T. H. and Traynor, D. and Truoel, P. and Tsakov, I. and Tseepeldorj, B. and Turnau, J. and Urban, K. and Valkarova, A. and Vallee, C. and Van Mechelen, P. and Vazdik, Y. and von den Driesch, M. and Wegener, D. and Wuensch, E. and Zacek, J. and Zalesak, J. and Zhang, Z. and Zhokin, A. and Zohrabyan, H. and Zomer, E.},
  issn         = {0370-2693},
  keyword      = {Lepton flavor violation,Leptoquarks,Electron-proton scattering},
  language     = {eng},
  number       = {1},
  pages        = {20--30},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Search for lepton flavour violation at HERA},
  url          = {http://dx.doi.org/10.1016/j.physletb.2011.05.023},
  volume       = {701},
  year         = {2011},
}