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Search for contact interactions in e(+/-)p collisions at HERA H1 Collaboration

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 705(1-2). p.52-58
Abstract
A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q(2) is performed in e(+/-)p collisions at HERA. The differential cross section d sigma/dQ(2), measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb(-1), is compared to the Standard Model prediction. No significant deviation is observed. Limits on various models predicting new phenomena at high Q(2) are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale A are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses M-LQ and couplings lambda are constrained to M-LQ/lambda > 0.41-1.86 TeV and limits on... (More)
A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q(2) is performed in e(+/-)p collisions at HERA. The differential cross section d sigma/dQ(2), measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb(-1), is compared to the Standard Model prediction. No significant deviation is observed. Limits on various models predicting new phenomena at high Q(2) are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale A are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses M-LQ and couplings lambda are constrained to M-LQ/lambda > 0.41-1.86 TeV and limits on squarks in R-parity violating supersymmetric models are derived. A lower limit on the gravitational scale in 4 + n dimensions of M-S > 0.9 TeV is established for low-scale quantum gravity effects in models with large extra dimensions. For the light quark radius an upper bound of R-q < 0.65 . 10(-18) m is determined. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
705
issue
1-2
pages
52 - 58
publisher
Elsevier
external identifiers
  • wos:000296937000006
  • scopus:80054683545
ISSN
0370-2693
DOI
10.1016/j.physletb.2011.09.109
language
English
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2011-12-22 11:02:09
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@article{9ec0370d-b835-4de0-b2a1-de186a53275a,
  abstract     = {A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q(2) is performed in e(+/-)p collisions at HERA. The differential cross section d sigma/dQ(2), measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb(-1), is compared to the Standard Model prediction. No significant deviation is observed. Limits on various models predicting new phenomena at high Q(2) are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale A are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses M-LQ and couplings lambda are constrained to M-LQ/lambda &gt; 0.41-1.86 TeV and limits on squarks in R-parity violating supersymmetric models are derived. A lower limit on the gravitational scale in 4 + n dimensions of M-S &gt; 0.9 TeV is established for low-scale quantum gravity effects in models with large extra dimensions. For the light quark radius an upper bound of R-q &lt; 0.65 . 10(-18) m is determined. (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 Cantun Avila, K. B. 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 Elsen, 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, P. 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, F. 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 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, P. and Roosen, R. and Rostovtsev, A. and Rotaru, M. and Ruiz Tabasco, J. E. 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, F. 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 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 Wegener, D. and Wuensch, E. and Zacek, J. and Zalesak, J. and Zhang, Z. and Zhokin, A. and Zohrabyan, H. and Zomer, F.},
  issn         = {0370-2693},
  language     = {eng},
  number       = {1-2},
  pages        = {52--58},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Search for contact interactions in e(+/-)p collisions at HERA H1 Collaboration},
  url          = {http://dx.doi.org/10.1016/j.physletb.2011.09.109},
  volume       = {705},
  year         = {2011},
}