Search for contact interactions in e±p collisions at HERA

F. D. Aaron; C. Alexa; V. Andreev; S. Backovic; A. Baghdasaryan; S. Baghdasaryan; E. Barrelet; W. Bartel; K. Begzsuren; A. Belousov; P. Belov; J. C. Bizot; V. Boudry; I. Bozovic-Jelisavcic; J. Bracinik; G. Brandt; M. Brinkmann; V. Brisson; D. Britzger; D. Bruncko; A. Bunyatyan; G. Buschhorn; L. Bystritskaya; A. J. Campbell; K. B. Cantun Avila; F. Ceccopieri; K. Cerny; V. Cerny; V. Chekelian; J. G. Contreras; J. A. Coughlan; J. Cvach; J. B. Dainton; K. Daum; B. Delcourt; J. Delvax; E. A. De Wolf; C. Diaconu; M. Dobre; V. Dodonov; A. Dossanov; A. Dubak; G. Eckerlin; S. Egli; A. Eliseev; E. Elsen; L. Favart; A. Fedotov; R. Felst; J. Feltesse; J. Ferencei; D. J. Fischer; M. Fleischer; A. Fomenko; E. Gabathuler; J. Gayler; S. Ghazaryan; A. Glazov; L. Goerlich; N. Gogitidze; M. Gouzevitch; C. Grab; A. Grebenyuk; T. Greenshaw; B. R. Grell; G. Grindhammer; S. Habib; D. Haidt; C. Helebrant; R. C.W. Henderson; E. Hennekemper; H. Henschel; M. Herbst; G. Herrera; M. Hildebrandt; K. H. Hiller; D. Hoffmann; R. Horisberger; T. Hreus; F. Huber; M. Jacquet; X. Janssen; L. Jönsson; H. Jung; M. Kapichine; I. R. Kenyon; C. Kiesling; M. Klein; C. Kleinwort; T. Kluge; R. Kogler; P. Kostka; M. Kraemer; J. Kretzschmar; K. Krüger; M. P.J. Landon; W. Lange; G. Laštovička-Medin; P. Laycock; A. Lebedev; V. Lendermann; S. Levonian; K. Lipka; B. List; J. List; R. Lopez-Fernandez; V. Lubimov; A. Makankine; E. Malinovski; P. Marage; H. U. Martyn; S. J. Maxfield; A. Mehta; A. B. Meyer; H. Meyer; J. Meyer; S. Mikocki; I. Milcewicz-Mika; F. Moreau; A. Morozov; J. V. Morris; M. Mudrinic; K. Müller; T. Naumann; P. R. Newman; C. Niebuhr; D. Nikitin; G. Nowak; K. Nowak; J. E. Olsson; D. Ozerov; P. Pahl; V. Palichik; I. Panagoulias; M. Pandurovic; T. Papadopoulou; C. Pascaud; G. D. Patel; E. Perez; A. Petrukhin; I. Picuric; S. Piec; H. Pirumov; D. Pitzl; R. Plačakyte; B. Pokorny; R. Polifka; B. Povh; V. Radescu; N. Raicevic; T. Ravdandorj; P. Reimer; E. Rizvi; P. Robmann; R. Roosen; A. Rostovtsev; M. Rotaru; J. E. Ruiz Tabasco; S. Rusakov; D. Šálek; D. P.C. Sankey; M. Sauter; E. Sauvan; S. Schmitt; L. Schoeffel; A. Schöning; H. C. Schultz-Coulon; F. Sefkow; L. N. Shtarkov; S. Shushkevich; T. Sloan; I. Smiljanic; Y. Soloviev; P. Sopicki; D. South; V. Spaskov; A. Specka; Z. Staykova; M. Steder; B. Stella; G. Stoicea; U. Straumann; T. Sykora; P. D. Thompson; T. H. Tran; D. Traynor; P. Truöl; I. Tsakov; B. Tseepeldorj; J. Turnau; K. Urban; A. Valkárová; C. Vallée; P. Van Mechelen; Y. Vazdik; D. Wegener; E. Wünsch; J. Žáček; J. Zálešák; Z. Zhang; A. Zhokin; H. Zohrabyan; F. Zomer

doi:10.1016/j.physletb.2011.09.109

Search for contact interactions in e^±p collisions at HERA

F. D. Aaron
, C. Alexa
, V. Andreev
, S. Backovic
, A. Baghdasaryan
, S. Baghdasaryan
, E. Barrelet
, W. Bartel
, K. Begzsuren
, A. Belousov
, P. Belov
, J. C. Bizot
, V. Boudry
, I. Bozovic-Jelisavcic
, J. Bracinik
, G. Brandt
, M. Brinkmann
, V. Brisson
, D. Britzger
, D. Bruncko

A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Ceccopieri, K. Cerny, V. Cerny, V. Chekelian, J. G. Contreras, J. A. Coughlan, J. Cvach, J. B. Dainton, K. Daum, B. Delcourt, J. Delvax, E. A. De Wolf, C. Diaconu, M. Dobre, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, S. Egli, A. Eliseev, E. Elsen, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, D. J. Fischer, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, C. Helebrant, R. C.W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, M. Jacquet, X. Janssen, L. Jönsson, H. Jung, M. Kapichine, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, R. Kogler, P. Kostka, M. Kraemer, J. Kretzschmar, K. Krüger, M. P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, V. Lendermann, S. Levonian, K. Lipka, B. List, J. List, R. Lopez-Fernandez, V. Lubimov, A. Makankine, E. Malinovski, P. Marage, H. U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J. V. Morris, M. Mudrinic, K. Müller, T. Naumann, P. R. Newman, C. Niebuhr, D. Nikitin, G. Nowak, K. Nowak, J. E. Olsson, D. Ozerov, P. Pahl, V. Palichik, I. Panagoulias, M. Pandurovic, T. Papadopoulou, C. Pascaud, G. D. Patel, E. Perez, A. Petrukhin, I. Picuric, S. Piec, H. Pirumov, D. Pitzl, R. Plačakyte, B. Pokorny, R. Polifka, B. Povh, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, J. E. Ruiz Tabasco, S. Rusakov, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, H. C. Schultz-Coulon, F. Sefkow, L. N. Shtarkov, S. Shushkevich, T. Sloan, I. Smiljanic, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, G. Stoicea, U. Straumann, T. Sykora, P. D. Thompson, T. H. Tran, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, J. Turnau, K. Urban, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, D. Wegener, E. Wünsch, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, H. Zohrabyan, F. Zomer

Horia Hulubei National Institute of Physics and Nuclear Engineering
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Montenegro
Yerevan Physics Institute
Universités Paris VI and VII
CEA/UVSQ/CNRS
Institute of Physics and Technology of the Mongolian Academy of Sciences
c/o DESY
Laboratoire de l'Accélérateur Linéaire
University of Belgrade
University of Birmingham
Institute of Experimental Physics Slovak Academy of Sciences
Max-Planck-Institut für Kernphysik
Max-Planck-Institut für Physik
Institute for Theoretical and Experimental Physics
Lund University
Inter-University Institute for High Energies ULB-VUB
Charles University
Dept. Fis. Ap. CINVESTAV
CCLRC Rutherford Appleton Laboratory
Institute of Physics of the Czech Academy of Sciences
University of Liverpool
Bergische Universität Gesamthochschule Wuppertal
Aix Marseille Université
CINVESTAV-IPN
Paul Scherrer Institut
Institute for Nuclear Physics
ETH Zurich
Lancaster University
University of Heidelberg
Queen Mary University of London
Joint Institute for Nuclear Research, Dubna
RWTH Aachen University
Physik-Institut der Universität Zürich
Universität Hamburg
University Roma Tre
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Dortmund

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

33 Citations (Scopus)

Abstract

A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q² is performed in e^±p collisions at HERA. The differential cross section dσ/dQ², 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 Q² are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale Λ are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses M_LQ and couplings λ are constrained to M_LQ/λ>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{dot operator}10^-18 m is determined.

Original language	English
Pages (from-to)	52-58
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	705
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2011.09.109
Publication status	Published - 1 Jan 2011

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10.1016/j.physletb.2011.09.109

Cite this

Aaron, F. D., Alexa, C., Andreev, V., Backovic, S., Baghdasaryan, A., Baghdasaryan, S., Barrelet, E., Bartel, W., Begzsuren, K., Belousov, A., Belov, P., Bizot, J. C., Boudry, V., Bozovic-Jelisavcic, I., Bracinik, J., Brandt, G., Brinkmann, M., Brisson, V., Britzger, D., ... Zomer, F. (2011). Search for contact interactions in e^±p collisions at HERA. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 705(1-2), 52-58. https://doi.org/10.1016/j.physletb.2011.09.109

@article{652911031a1847a5ad302ba41f4f7b52,

title = "Search for contact interactions in e±p collisions at HERA",

abstract = "A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q2 is performed in e±p collisions at HERA. The differential cross section dσ/dQ2, 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 Q2 are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale Λ are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses MLQ and couplings λ are constrained to MLQ/λ>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 MS>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 Rq<0.65\{dot operator\}10-18 m is determined.",

author = "Aaron, \{F. D.\} and C. Alexa and V. Andreev and S. Backovic and A. Baghdasaryan and S. Baghdasaryan and E. Barrelet and W. Bartel and K. Begzsuren and A. Belousov and P. Belov and Bizot, \{J. C.\} and V. Boudry and I. Bozovic-Jelisavcic and J. Bracinik and G. Brandt and M. Brinkmann and V. Brisson and D. Britzger and D. Bruncko and A. Bunyatyan and G. Buschhorn and L. Bystritskaya and Campbell, \{A. J.\} and \{Cantun Avila\}, \{K. B.\} and F. Ceccopieri and K. Cerny and V. Cerny and V. Chekelian and Contreras, \{J. G.\} and Coughlan, \{J. A.\} and J. Cvach and Dainton, \{J. B.\} and K. Daum and B. Delcourt and J. Delvax and \{De Wolf\}, \{E. A.\} and C. Diaconu and M. Dobre and V. Dodonov and A. Dossanov and A. Dubak and G. Eckerlin and S. Egli and A. Eliseev and E. Elsen and L. Favart and A. Fedotov and R. Felst and J. Feltesse and J. Ferencei and Fischer, \{D. J.\} and M. Fleischer and A. Fomenko and E. Gabathuler and J. Gayler and S. Ghazaryan and A. Glazov and L. Goerlich and N. Gogitidze and M. Gouzevitch and C. Grab and A. Grebenyuk and T. Greenshaw and Grell, \{B. R.\} and G. Grindhammer and S. Habib and D. Haidt and C. Helebrant and Henderson, \{R. C.W.\} and E. Hennekemper and H. Henschel and M. Herbst and G. Herrera and M. Hildebrandt and Hiller, \{K. H.\} and D. Hoffmann and R. Horisberger and T. Hreus and F. Huber and M. Jacquet and X. Janssen and L. J{\"o}nsson and H. Jung and M. Kapichine and Kenyon, \{I. R.\} and C. Kiesling and M. Klein and C. Kleinwort and T. Kluge and R. Kogler and P. Kostka and M. Kraemer and J. Kretzschmar and K. Kr{\"u}ger and Landon, \{M. P.J.\} and W. Lange and G. La{\v s}tovi{\v c}ka-Medin and P. Laycock and A. Lebedev and V. Lendermann and S. Levonian and K. Lipka and B. List and J. List and R. Lopez-Fernandez and V. Lubimov and A. Makankine and E. Malinovski and P. Marage and Martyn, \{H. U.\} and Maxfield, \{S. J.\} and A. Mehta and Meyer, \{A. B.\} and H. Meyer and J. Meyer and S. Mikocki and I. Milcewicz-Mika and F. Moreau and A. Morozov and Morris, \{J. V.\} and M. Mudrinic and K. M{\"u}ller and T. Naumann and Newman, \{P. R.\} and C. Niebuhr and D. Nikitin and G. Nowak and K. Nowak and Olsson, \{J. E.\} and D. Ozerov and P. Pahl and V. Palichik and I. Panagoulias and M. Pandurovic and T. Papadopoulou and C. Pascaud and Patel, \{G. D.\} and E. Perez and A. Petrukhin and I. Picuric and S. Piec and H. Pirumov and D. Pitzl and R. Pla{\v c}akyte and B. Pokorny and R. Polifka and B. Povh and V. Radescu and N. Raicevic and T. Ravdandorj and P. Reimer and E. Rizvi and P. Robmann and R. Roosen and A. Rostovtsev and M. Rotaru and \{Ruiz Tabasco\}, \{J. E.\} and S. Rusakov and D. {\v S}{\'a}lek and Sankey, \{D. P.C.\} and M. Sauter and E. Sauvan and S. Schmitt and L. Schoeffel and A. Sch{\"o}ning and Schultz-Coulon, \{H. C.\} and F. Sefkow and Shtarkov, \{L. N.\} and S. Shushkevich and T. Sloan and I. Smiljanic and Y. Soloviev and P. Sopicki and D. South and V. Spaskov and A. Specka and Z. Staykova and M. Steder and B. Stella and G. Stoicea and U. Straumann and T. Sykora and Thompson, \{P. D.\} and Tran, \{T. H.\} and D. Traynor and P. Tru{\"o}l and I. Tsakov and B. Tseepeldorj and J. Turnau and K. Urban and A. Valk{\'a}rov{\'a} and C. Vall{\'e}e and \{Van Mechelen\}, P. and Y. Vazdik and D. Wegener and E. W{\"u}nsch and J. {\v Z}{\'a}{\v c}ek and J. Z{\'a}le{\v s}{\'a}k and Z. Zhang and A. Zhokin and H. Zohrabyan and F. Zomer",

year = "2011",

month = jan,

day = "1",

doi = "10.1016/j.physletb.2011.09.109",

language = "English",

volume = "705",

pages = "52--58",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Aaron, FD, Alexa, C, Andreev, V, Backovic, S, Baghdasaryan, A, Baghdasaryan, S, Barrelet, E, Bartel, W, Begzsuren, K, Belousov, A, Belov, P, Bizot, JC, Boudry, V, Bozovic-Jelisavcic, I, Bracinik, J, Brandt, G, Brinkmann, M, Brisson, V, Britzger, D, Bruncko, D, Bunyatyan, A, Buschhorn, G, Bystritskaya, L, Campbell, AJ, Cantun Avila, KB, Ceccopieri, F, Cerny, K, Cerny, V, Chekelian, V, Contreras, JG, Coughlan, JA, Cvach, J, Dainton, JB, Daum, K, Delcourt, B, Delvax, J, De Wolf, EA, Diaconu, C, Dobre, M, Dodonov, V, Dossanov, A, Dubak, A, Eckerlin, G, Egli, S, Eliseev, A, Elsen, E, Favart, L, Fedotov, A, Felst, R, Feltesse, J, Ferencei, J, Fischer, DJ, Fleischer, M, Fomenko, A, Gabathuler, E, Gayler, J, Ghazaryan, S, Glazov, A, Goerlich, L, Gogitidze, N, Gouzevitch, M, Grab, C, Grebenyuk, A, Greenshaw, T, Grell, BR, Grindhammer, G, Habib, S, Haidt, D, Helebrant, C, Henderson, RCW, Hennekemper, E, Henschel, H, Herbst, M, Herrera, G, Hildebrandt, M, Hiller, KH, Hoffmann, D, Horisberger, R, Hreus, T, Huber, F, Jacquet, M, Janssen, X, Jönsson, L, Jung, H, Kapichine, M, Kenyon, IR, Kiesling, C, Klein, M, Kleinwort, C, Kluge, T, Kogler, R, Kostka, P, Kraemer, M, Kretzschmar, J, Krüger, K, Landon, MPJ, Lange, W, Laštovička-Medin, G, Laycock, P, Lebedev, A, Lendermann, V, Levonian, S, Lipka, K, List, B, List, J, Lopez-Fernandez, R, Lubimov, V, Makankine, A, Malinovski, E, Marage, P, Martyn, HU, Maxfield, SJ, Mehta, A, Meyer, AB, Meyer, H, Meyer, J, Mikocki, S, Milcewicz-Mika, I, Moreau, F, Morozov, A, Morris, JV, Mudrinic, M, Müller, K, Naumann, T, Newman, PR, Niebuhr, C, Nikitin, D, Nowak, G, Nowak, K, Olsson, JE, Ozerov, D, Pahl, P, Palichik, V, Panagoulias, I, Pandurovic, M, Papadopoulou, T, Pascaud, C, Patel, GD, Perez, E, Petrukhin, A, Picuric, I, Piec, S, Pirumov, H, Pitzl, D, Plačakyte, R, Pokorny, B, Polifka, R, Povh, B, Radescu, V, Raicevic, N, Ravdandorj, T, Reimer, P, Rizvi, E, Robmann, P, Roosen, R, Rostovtsev, A, Rotaru, M, Ruiz Tabasco, JE, Rusakov, S, Šálek, D, Sankey, DPC, Sauter, M, Sauvan, E, Schmitt, S, Schoeffel, L, Schöning, A, Schultz-Coulon, HC, Sefkow, F, Shtarkov, LN, Shushkevich, S, Sloan, T, Smiljanic, I, Soloviev, Y, Sopicki, P, South, D, Spaskov, V, Specka, A, Staykova, Z, Steder, M, Stella, B, Stoicea, G, Straumann, U, Sykora, T, Thompson, PD, Tran, TH, Traynor, D, Truöl, P, Tsakov, I, Tseepeldorj, B, Turnau, J, Urban, K, Valkárová, A, Vallée, C, Van Mechelen, P, Vazdik, Y, Wegener, D, Wünsch, E, Žáček, J, Zálešák, J, Zhang, Z, Zhokin, A, Zohrabyan, H & Zomer, F 2011, 'Search for contact interactions in e^±p collisions at HERA', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 705, no. 1-2, pp. 52-58. https://doi.org/10.1016/j.physletb.2011.09.109

TY - JOUR

T1 - Search for contact interactions in e±p collisions at HERA

AU - Aaron, F. D.

AU - Alexa, C.

AU - Andreev, V.

AU - Backovic, S.

AU - Baghdasaryan, A.

AU - Baghdasaryan, S.

AU - Barrelet, E.

AU - Bartel, W.

AU - Begzsuren, K.

AU - Belousov, A.

AU - Belov, P.

AU - Bizot, J. C.

AU - Boudry, V.

AU - Bozovic-Jelisavcic, I.

AU - Bracinik, J.

AU - Brandt, G.

AU - Brinkmann, M.

AU - Brisson, V.

AU - Britzger, D.

AU - Bruncko, D.

AU - Bunyatyan, A.

AU - Buschhorn, G.

AU - Bystritskaya, L.

AU - Campbell, A. J.

AU - Cantun Avila, K. B.

AU - Ceccopieri, F.

AU - Cerny, K.

AU - Cerny, V.

AU - Chekelian, V.

AU - Contreras, J. G.

AU - Coughlan, J. A.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Daum, K.

AU - Delcourt, B.

AU - Delvax, J.

AU - De Wolf, E. A.

AU - Diaconu, C.

AU - Dobre, M.

AU - Dodonov, V.

AU - Dossanov, A.

AU - Dubak, A.

AU - Eckerlin, G.

AU - Egli, S.

AU - Eliseev, A.

AU - Elsen, E.

AU - Favart, L.

AU - Fedotov, A.

AU - Felst, R.

AU - Feltesse, J.

AU - Ferencei, J.

AU - Fischer, D. J.

AU - Fleischer, M.

AU - Fomenko, A.

AU - Gabathuler, E.

AU - Gayler, J.

AU - Ghazaryan, S.

AU - Glazov, A.

AU - Goerlich, L.

AU - Gogitidze, N.

AU - Gouzevitch, M.

AU - Grab, C.

AU - Grebenyuk, A.

AU - Greenshaw, T.

AU - Grell, B. R.

AU - Grindhammer, G.

AU - Habib, S.

AU - Haidt, D.

AU - Helebrant, C.

AU - Henderson, R. C.W.

AU - Hennekemper, E.

AU - Henschel, H.

AU - Herbst, M.

AU - Herrera, G.

AU - Hildebrandt, M.

AU - Hiller, K. H.

AU - Hoffmann, D.

AU - Horisberger, R.

AU - Hreus, T.

AU - Huber, F.

AU - Jacquet, M.

AU - Janssen, X.

AU - Jönsson, L.

AU - Jung, H.

AU - Kapichine, M.

AU - Kenyon, I. R.

AU - Kiesling, C.

AU - Klein, M.

AU - Kleinwort, C.

AU - Kluge, T.

AU - Kogler, R.

AU - Kostka, P.

AU - Kraemer, M.

AU - Kretzschmar, J.

AU - Krüger, K.

AU - Landon, M. P.J.

AU - Lange, W.

AU - Laštovička-Medin, G.

AU - Laycock, P.

AU - Lebedev, A.

AU - Lendermann, V.

AU - Levonian, S.

AU - Lipka, K.

AU - List, B.

AU - List, J.

AU - Lopez-Fernandez, R.

AU - Lubimov, V.

AU - Makankine, A.

AU - Malinovski, E.

AU - Marage, P.

AU - Martyn, H. U.

AU - Maxfield, S. J.

AU - Mehta, A.

AU - Meyer, A. B.

AU - Meyer, H.

AU - Meyer, J.

AU - Mikocki, S.

AU - Milcewicz-Mika, I.

AU - Moreau, F.

AU - Morozov, A.

AU - Morris, J. V.

AU - Mudrinic, M.

AU - Müller, K.

AU - Naumann, T.

AU - Newman, P. R.

AU - Niebuhr, C.

AU - Nikitin, D.

AU - Nowak, G.

AU - Nowak, K.

AU - Olsson, J. E.

AU - Ozerov, D.

AU - Pahl, P.

AU - Palichik, V.

AU - Panagoulias, I.

AU - Pandurovic, M.

AU - Papadopoulou, T.

AU - Pascaud, C.

AU - Patel, G. D.

AU - Perez, E.

AU - Petrukhin, A.

AU - Picuric, I.

AU - Piec, S.

AU - Pirumov, H.

AU - Pitzl, D.

AU - Plačakyte, R.

AU - Pokorny, B.

AU - Polifka, R.

AU - Povh, B.

AU - Radescu, V.

AU - Raicevic, N.

AU - Ravdandorj, T.

AU - Reimer, P.

AU - Rizvi, E.

AU - Robmann, P.

AU - Roosen, R.

AU - Rostovtsev, A.

AU - Rotaru, M.

AU - Ruiz Tabasco, J. E.

AU - Rusakov, S.

AU - Šálek, D.

AU - Sankey, D. P.C.

AU - Sauter, M.

AU - Sauvan, E.

AU - Schmitt, S.

AU - Schoeffel, L.

AU - Schöning, A.

AU - Schultz-Coulon, H. C.

AU - Sefkow, F.

AU - Shtarkov, L. N.

AU - Shushkevich, S.

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AU - Spaskov, V.

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AU - Staykova, Z.

AU - Steder, M.

AU - Stella, B.

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AU - Straumann, U.

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AU - Thompson, P. D.

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AU - Truöl, P.

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AU - Zhang, Z.

AU - Zhokin, A.

AU - Zohrabyan, H.

AU - Zomer, F.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q2 is performed in e±p collisions at HERA. The differential cross section dσ/dQ2, 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 Q2 are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale Λ are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses MLQ and couplings λ are constrained to MLQ/λ>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 MS>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 Rq<0.65{dot operator}10-18 m is determined.

AB - A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q2 is performed in e±p collisions at HERA. The differential cross section dσ/dQ2, 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 Q2 are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale Λ are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses MLQ and couplings λ are constrained to MLQ/λ>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 MS>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 Rq<0.65{dot operator}10-18 m is determined.

U2 - 10.1016/j.physletb.2011.09.109

DO - 10.1016/j.physletb.2011.09.109

M3 - Article

AN - SCOPUS:80054683545

SN - 0370-2693

VL - 705

SP - 52

EP - 58

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Search for contact interactions in e±p collisions at HERA

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Search for contact interactions in e^±p collisions at HERA