Search for contact interactions, large extra dimensions and finite quark radius in ep collisions at HERA

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ID: 268010
2004
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Abstract
A search for physics beyond the Standard Model has been performed with high-Q2 neutral current deep inelastic scattering events recorded with the ZEUS detector at HERA. Two data sets, e+p→e+X and e−p→e−X, with respective integrated luminosities of 112 pb−1 and 16 pb−1, were analyzed. The data reach Q2 values as high as 40 000 GeV2. No significant deviations from Standard Model predictions were observed. Limits were derived on the effective mass scale in eeqq contact interactions, the ratio of leptoquark mass to the Yukawa coupling for heavy leptoquark models and the mass scale parameter in models with large extra dimensions. The limit on the quark charge radius, in the classical form factor approximation, is 0.85×10−16 cm.
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Authors S. Chekanov,M. Derrick,D. Krakauer,J.H. Loizides,S. Magill,S. Miglioranzi,B. Musgrave,J. Repond,R. Yoshida,M.C.K. Mattingly,P. Antonioli,G. Bari,M. Basile,L. Bellagamba,D. Boscherini,A. Bruni,G. Bruni,G. Cara Romeo,L. Cifarelli,F. Cindolo,A. Contin,M. Corradi,S. De Pasquale,P. Giusti,G. Iacobucci,A. Margotti,A. Montanari,R. Nania,F. Palmonari,A. Pesci,G. Sartorelli,A. Zichichi,G. Aghuzumtsyan,D. Bartsch,I. Brock,S. Goers,H. Hartmann,E. Hilger,P. Irrgang,H.-P. Jakob,O. Kind,U. Meyer,E. Paul,J. Rautenberg,R. Renner,A. Stifutkin,J. Tandler,K.C. Voss,M. Wang,A. Weber,D.S. Bailey,N.H. Brook,J.E. Cole,G.P. Heath,T. Namsoo,S. Robins,M. Wing,M. Capua,A. Mastroberardino,M. Schioppa,G. Susinno,J.Y. Kim,Y.K. Kim,J.H. Lee,I.T. Lim,M.Y. Pac,A. Caldwell,M. Helbich,X. Liu,B. Mellado,Y. Ning,S. Paganis,Z. Ren,W.B. Schmidke,F. Sciulli,J. Chwastowski,A. Eskreys,J. Figiel,A. Galas,K. Olkiewicz,P. Stopa,L. Zawiejski,L. Adamczyk,T. Bołd,I. Grabowska-Bołd,D. Kisielewska,A.M. Kowal,M. Kowal,T. Kowalski,Mariusz Przybycien,L. Suszycki,D. Szuba,J. Szuba,A. Kotański,W. Słomiński,V. Adler,U. Behrens,I. Bloch,K. Borras,V. Chiochia,D. Dannheim,G. Drews,J. Fourletova,U. Fricke,A. Geiser,P. Göttlicher,O. Gutsche,T. Haas,W. Hain,S. Hillert,B. Kahle,U. Kötz,G. Kramberger,H. Labes,D. Lelas,H. Lim,B. Löhr,R. Mankel,I.-A. Melzer-Pellmann,C.N. Nguyen,D. Notz,A.E. Nuncio-Quiroz,A. Polini,A. Raval,L. Rurua,U. Schneekloth,U. Stösslein,R. Wichmann,G. Wolf,C. Youngman,W. Zeuner,S. Schlenstedt,G. Barbagli,E. Gallo,C. Genta,P.G. Pelfer,A. Bamberger,A. Benen,F. Karstens,D. Dobur,N.N. Vlasov,M. Bell,P.J. Bussey,A.T. Doyle,J. Ferrando,J. Hamilton,S. Hanlon,D.H. Saxon,I.O. Skillicorn,I. Gialas,T. Carli,T. Gosau,U. Holm,N. Krumnack,E. Lohrmann,M. Milite,H. Salehi,P. Schleper,S. Stonjek,K. Wick,A. Ziegler,C. Collins-Tooth,C. Foudas,R. Gonçalo,K.R. Long,Alexander Tapper,P. Cloth,D. Filges,M. Kataoka,K. Nagano,K. Tokushuku,S. Yamada,Y. Yamazaki,A.N. Barakbaev,E.G. Boos,Nikolay Pokrovskiy,Boulat Zhautykov,D. Son,K. Piotrzkowski,F. Barreiro,C. Glasman,O. González,L. Labarga,J. Del Peso,Enrico Tassi,J. Terrón,M. Vázquez,M. Zambrana,M. Barbi,F. Corriveau,S. Gliga,J. Lainesse,S. Padhi,D.G. Stairs,R. Walsh,T. Tsurugai,A. Antonov,P. Danilov,B.A. Dolgoshein,D. Gladkov,V. Sosnovtsev,S. Suchkov,R.K. Dementiev,P.F. Ermolov,Yu.A. Golubkov,I.I. Katkov,L.A. Khein,I.A. Korzhavina,V.A. Kuzmin,B.B. Levchenko,O.Yu. Lukina,A.S. Proskuryakov,Lydia Shcheglova,S.A. Zotkin,N. Coppola,S. Grijpink,E. Koffeman,P. Kooijman,E. Maddox,A. Pellegrino,S. Schagen,H. Tiecke,J.J. Velthuis,L. Wiggers,E. De Wolf,N. Brümmer,B. Bylsma,L.S. Durkin,T.Y. Ling,A.M. Cooper-Sarkar,A. Cottrell,R.C.E. Devenish,B. Foster,Grzegorz Grzelak,C. Gwenlan,S. Patel,P.B. Straub,R. Walczak,A. Bertolin,R. Brugnera,R. Carlin,F. Dal Corso,Stefano Dusini,A. Garfagnini,S. Limentani,A. Longhin,A. Parenti,M. Posocco,L. Stanco,M. Turcato,E.A. Heaphy,F. Metlica,B.Y. Oh,J.J. Whitmore,Y. Iga,G. D'agostini,G. Marini,A. Nigro,C. Cormack,J.C. Hart,N.A. McCubbin,C. Heusch,I.H. Park,N. Pavel,H. Abramowicz,A. Gabareen,S. Kananov,A. Kreisel,A. Levy,M. Kuze,T. Fusayasu,S. Kagawa,T. Kohno,T. Tawara,T. Yamashita,R. Hamatsu,T. Hirose,M. Inuzuka,H. Kaji,S. Kitamura,K. Matsuzawa,M.I. Ferrero,V. Monaco,R. Sacchi,A. Solano,M. Arneodo,M. Ruspa,T. Koop,J.F. Martin,A. Mirea,Jonathan Butterworth,R. Hall-Wilton,T.W. Jones,M.S. Lightwood,M.R. Sutton,C. Targett-Adams,Jacek Ciborowski,R. Ciesielski,P. Łużniak,R.J. Nowak,J.M. Pawlak,J. Sztuk,T. Tymieniecka,A. Ukleja,J. Ukleja,A.F. Żarnecki,M. Adamus,P. Plucinski,Y. Eisenberg,L.K. Gladilin,D. Hochman,U. Karshon,M. Riveline,D. Kçira,S. Lammers,L. Li,D.D. Reeder,M. Rosin,A.A. Savin,W.H. Smith,A. Deshpande,S. Dhawan,S. Bhadra,C.D. Catterall,S. Fourletov,G. Hartner,S. Menary,M. Soares,J. Standage,H. Kowalski,K. Wichmann,Ar. Ziegler,ZEUS collaboration;S. Chekanov;M. Derrick;D. Krakauer;J.H. Loizides;S. Magill;S. Miglioranzi;B. Musgrave;J. Repond;R. Yoshida;M.C.K. Mattingly;P. Antonioli;G. Bari;M. Basile;L. Bellagamba;D. Boscherini;A. Bruni;G. Bruni;G. Cara Romeo;L. Cifarelli;F. Cindolo;A. Contin;M. Corradi;S. De Pasquale;P. Giusti;G. Iacobucci;A. Margotti;A. Montanari;R. Nania;F. Palmonari;A. Pesci;G. Sartorelli;A. Zichichi;G. Aghuzumtsyan;D. Bartsch;I. Brock;S. Goers;H. Hartmann;E. Hilger;P. Irrgang;H.-P. Jakob;O. Kind;U. Meyer;E. Paul;J. Rautenberg;R. Renner;A. Stifutkin;J. Tandler;K.C. Voss;M. Wang;A. Weber;D.S. Bailey;N.H. Brook;J.E. Cole;G.P. Heath;T. Namsoo;S. Robins;M. Wing;M. Capua;A. Mastroberardino;M. Schioppa;G. Susinno;J.Y. Kim;Y.K. Kim;J.H. Lee;I.T. Lim;M.Y. Pac;A. Caldwell;M. Helbich;X. Liu;B. Mellado;Y. Ning;S. Paganis;Z. Ren;W.B. Schmidke;F. Sciulli;J. Chwastowski;A. Eskreys;J. Figiel;A. Galas;K. Olkiewicz;P. Stopa;L. Zawiejski;L. Adamczyk;T. Bołd;I. Grabowska-Bołd;D. Kisielewska;A.M. Kowal;M. Kowal;T. Kowalski;Mariusz Przybycien;L. Suszycki;D. Szuba;J. Szuba;A. Kotański;W. Słomiński;V. Adler;U. Behrens;I. Bloch;K. Borras;V. Chiochia;D. Dannheim;G. Drews;J. Fourletova;U. Fricke;A. Geiser;P. Göttlicher;O. Gutsche;T. Haas;W. Hain;S. Hillert;B. Kahle;U. Kötz;G. Kramberger;H. Labes;D. Lelas;H. Lim;B. Löhr;R. Mankel;I.-A. Melzer-Pellmann;C.N. Nguyen;D. Notz;A.E. Nuncio-Quiroz;A. Polini;A. Raval;L. Rurua;U. Schneekloth;U. Stösslein;R. Wichmann;G. Wolf;C. Youngman;W. Zeuner;S. Schlenstedt;G. Barbagli;E. Gallo;C. Genta;P.G. Pelfer;A. Bamberger;A. Benen;F. Karstens;D. Dobur;N.N. Vlasov;M. Bell;P.J. Bussey;A.T. Doyle;J. Ferrando;J. Hamilton;S. Hanlon;D.H. Saxon;I.O. Skillicorn;I. Gialas;T. Carli;T. Gosau;U. Holm;N. Krumnack;E. Lohrmann;M. Milite;H. Salehi;P. Schleper;S. Stonjek;K. Wick;A. Ziegler;C. Collins-Tooth;C. Foudas;R. Gonçalo;K.R. Long;Alexander Tapper;P. Cloth;D. Filges;M. Kataoka;K. Nagano;K. Tokushuku;S. Yamada;Y. Yamazaki;A.N. Barakbaev;E.G. Boos;Nikolay Pokrovskiy;Boulat Zhautykov;D. Son;K. Piotrzkowski;F. Barreiro;C. Glasman;O. González;L. Labarga;J. Del Peso;Enrico Tassi;J. Terrón;M. Vázquez;M. Zambrana;M. Barbi;F. Corriveau;S. Gliga;J. Lainesse;S. Padhi;D.G. Stairs;R. Walsh;T. Tsurugai;A. Antonov;P. Danilov;B.A. Dolgoshein;D. Gladkov;V. Sosnovtsev;S. Suchkov;R.K. Dementiev;P.F. Ermolov;Yu.A. Golubkov;I.I. Katkov;L.A. Khein;I.A. Korzhavina;V.A. Kuzmin;B.B. Levchenko;O.Yu. Lukina;A.S. Proskuryakov;Lydia Shcheglova;S.A. Zotkin;N. Coppola;S. Grijpink;E. Koffeman;P. Kooijman;E. Maddox;A. Pellegrino;S. Schagen;H. Tiecke;J.J. Velthuis;L. Wiggers;E. De Wolf;N. Brümmer;B. Bylsma;L.S. Durkin;T.Y. Ling;A.M. Cooper-Sarkar;A. Cottrell;R.C.E. Devenish;B. Foster;Grzegorz Grzelak;C. Gwenlan;S. Patel;P.B. Straub;R. Walczak;A. Bertolin;R. Brugnera;R. Carlin;F. Dal Corso;Stefano Dusini;A. Garfagnini;S. Limentani;A. Longhin;A. Parenti;M. Posocco;L. Stanco;M. Turcato;E.A. Heaphy;F. Metlica;B.Y. Oh;J.J. Whitmore;Y. Iga;G. D'agostini;G. Marini;A. Nigro;C. Cormack;J.C. Hart;N.A. McCubbin;C. Heusch;I.H. Park;N. Pavel;H. Abramowicz;A. Gabareen;S. Kananov;A. Kreisel;A. Levy;M. Kuze;T. Fusayasu;S. Kagawa;T. Kohno;T. Tawara;T. Yamashita;R. Hamatsu;T. Hirose;M. Inuzuka;H. Kaji;S. Kitamura;K. Matsuzawa;M.I. Ferrero;V. Monaco;R. Sacchi;A. Solano;M. Arneodo;M. Ruspa;T. Koop;J.F. Martin;A. Mirea;Jonathan Butterworth;R. Hall-Wilton;T.W. Jones;M.S. Lightwood;M.R. Sutton;C. Targett-Adams;Jacek Ciborowski;R. Ciesielski;P. Łużniak;R.J. Nowak;J.M. Pawlak;J. Sztuk;T. Tymieniecka;A. Ukleja;J. Ukleja;A.F. Żarnecki;M. Adamus;P. Plucinski;Y. Eisenberg;L.K. Gladilin;D. Hochman;U. Karshon;M. Riveline;D. Kçira;S. Lammers;L. Li;D.D. Reeder;M. Rosin;A.A. Savin;W.H. Smith;A. Deshpande;S. Dhawan;S. Bhadra;C.D. Catterall;S. Fourletov;G. Hartner;S. Menary;M. Soares;J. Standage;H. Kowalski;K. Wichmann;Ar. Ziegler;ZEUS collaboration;
Journal physics letters b
Year 2004
DOI
10.1016/j.physletb.2004.03.081
URL
https://sciprofiles.com/publication/view/dcfd61816d659797031fc256ed8bd50c
Keywords
models contact interactions large extra dimensions leptoquark

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