Search for single-top production in ep collisions at HERA

Chekanov, S.; Derrick, M.; Krakauer, D.; Loizides, J. H.; Magill, S.; Musgrave, B.; Repond, J.; Yoshida, R.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Romeo, G. C.; Cifarelli, L.; Cindolo, R.; Contin, A.; Corradi, M.; Pasquale, S. D.; Giusti, P.; Iacobucci, G.; Margotti, A.; Nania, R.; Palmonari, F.; Pesci, A.; Saitorelli, G.; Zichichi, A.; Aghuzumtsyan, G.; Bartsch, D.; Brock, I.; Goers, S.; Hartmann, H.; Hilger, E.; Irrgang, P.; Jakob, H. P.; Kappes, A.; Katz, U. F.; Kind, O.; Meyer, U.; Paul, E.; Rautenberg, J.; Renner, R.; Stifutkin, A.; Tandler, J.; Voss, K. C.; Wang, M.; Weber, A.; Bailey, D. S.; Brook, N. H.; Cole, J. E.; Foster, B.; Heath, G. P.; Heath, H. F.; Robins, S.; Rodrigues, E.; Scott, J.; Tapper, R. J.; Wing, M.; Capua, A.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Kim, J. Y.; Kim, Y. K.; Lee, J. H.; Lim, I. T.; Pac, M. Y.; Caldwell, A.; Helbich, M.; Liu, X.; Mellado, B.; Ning, Y.; Paganis, S.; Ren, Z.; Schmidke, W. B.; Sciulli, F.; Chwastowski, J.; Eskreys, A.; Figiel, J.; Olkiewicz, K.; Stopa, P.; Zawiejski, L.; Adamczyk, L.; Bold, T.; Grabowska Bold, I.; Kisielewska, D.; Kowal, A. M.; Kowal, M.; Kowalski, T.; Przybycien, M.; Suszycki, L.; Szuba, D.; Szuba, J.; Kotanski, A.; Slominski, W.; Behrens, U.; Bloch, I.; Borras, K.; Chiochia, V.; Dannheim, D.; Drews, G.; Fourletova, J.; Fricke, U.; Geiser, A.; Goebel, R.; Gottlicher, P.; Gutsche, O.; Haas, T.; Hain, W.; Hartner, G. F.; Hillert, S.; Kahle, B.; Kotz, U.; Kowalski, H.; Kramberger, G.; Labes, H.; Lelas, D.; Lohr, B.; Mankel, R.; Melzer Pellmann, I. A.; Moritz, M.; Nguyen, C. N.; Notz, D.; Petrucci, M. C.; Polini, A.; Raval, A.; Schneekloth, U.; Selonke, F.; Wessoleck, H.; Wolf, G.; Youngman, C.; Zeuner, W.; Schlenstedt, S.; Barbagli, G.; Gallo, E.; Genta, C.; Pelfer, G.; Bamberger, A.; Benen, A.; Bell, M.; Bussey, P. J.; Doyle, A. T.; Glasman, C.; Hamilton, J.; Hanlon, S.; Lee, S. W.; Lupi, A.; Saxon, D. H.; Skillicorn, I. O.; Gialas, I.; Bodmann, B.; Carli, T.; Holm, U.; Klimek, K.; Krumnack, N.; Lohrmann, E.; Milite, M.; Salehi, H.; Stonjek, S.; Wick, K.; Ziegler, A.; Ziegler, Ar; Collins Tooth, C.; Foudas, C.; Goncalo, R.; Long, K. R.; Tapper, A. D.; Cloth, P.; Filges, D.; Kuze, M.; Nagano, K.; Tokushuku, K.; Yamada, S.; Yamazaki, Y.; Barakbaev, A. N.; Boos, E. G.; Pokrovskiy, N. S.; Zhautykov, B. O.; Lim, H.; Son, D.; Piotrzkowski, K.; Barreiro, F.; Gonzalez, O.; Labarga, L.; Peso, J. D.; Tassi, E.; Terron, J.; Vazquez, M.; Barbi, M.; Corriveau, F.; Gliga, S.; Lainesse, J.; Padhi, S.; Stairs, D. G.; Tsurugai, T.; Antonov, A.; Danilov, P.; Dolgoshein, B. A.; Gladkov, D.; Sosnovtsev, V.; Suchkov, S.; Dementiev, R. K.; Ermolov, R.; Golubkov, Y. A.; Katkov, I. I.; Khein, L. A.; Korzhavina, I. A.; Kuzmin, V. A.; Levchenko, B. B.; Yu Lukina, O.; Proskuryakov, A. S.; Shcheglova, L. M.; Vlasov, N. N.; Zotkin, S. A.; Coppola, N.; Grijpink, S.; Koffeman, E.; Kooijman, P.; Maddox, E.; Pellegrino, A.; Schagen, S.; Tiecke, H.; Velthuis, J. J.; Wiggers, L.; Wolf, E. D.; Brummer, N.; Bylsma, B.; Durkin, L. S.; Ling, T. Y.; Boogert, S.; Cooper Sarkar, A. M.; Ferrando, J.; Grzelak, G.; Matsushita, T.; Patel, S.; Rigby, M.; Sutton, M. R.; Walczak, R.; Bertolin, A.; Brugnera, R.; Carlin, R.; Corso, F. D.; Dusini, S.; Garfagnini, A.; Limentani, S.; Longhin, A.; Parenti, A.; Posocco, M.; Stanco, L.; Turcato, M.; Heaphy, E. A.; Metlica, F.; B. Y., Oh; Whitmore, J. J.; Iga, Y.; D'Agostini, Giulio; Marini, G.; Nigro, Andrea; Cormack, C.; Hart, J. C.; Mccubbin, N. A.; Heusch, C.; Park, I. H.; Pavel, N.; Abramowicz, H.; Gabareen, A.; Kananov, S.; Kreisel, A.; Levy, A.; Abe, T.; Fusayasu, T.; Kagawa, S.; Kohno, T.; Tawara, T.; Yamashita, T.; Hamatsu, R.; Hirose, I.; Inuzuka, M.; Kitamura, S.; Matsuzawa, K.; Nishimura, T.; Arneodo, M.; Ferrero, M. I.; Monaco, V.; Ruspa, M.; Sacchi, R.; Solano, A.; Koop, T.; Levman, G. M.; Martin, J. F.; Mirea, A.; Butterworth, J. M.; Gwenlan, C.; Hall Wilton, R.; Jones, T. W.; Lightwood, M. S.; West, B. J.; Ciborowski, J.; Ciesielski, R.; Nowak, R. J.; Pawlak, J. M.; Sztuk, J.; Tymieniecka, T.; Ukleja, A.; Ukleja, J.; Zarnecki, A. F.; Adamus, M.; Plucinski, P.; Eisenberg, Y.; Gladilin, L. K.; Hochman, D.; Karshon, U.; Kcira, D.; Lammers, S.; Li, L.; Reeder, D. D.; Savin, A. A.; Smith, W. H.; Deshpande, A.; Dhawan, S.; Hughes, V. W.; Straub, P. B.; Bhadra, S.; Catterall, C. D.; Fourletov, S.; Menary, S.; Soares, M.; Standage, J.

doi:10.1016/s0370-2693(03)00333-2

A search for single-top production, ep --> et X, has been made with the ZEUS detector at HERA using an integrated luminosity of 130.1 pb(-1). Events from both the leptonic and hadronic decay channels of the W boson resulting from the decay of the top quark were sought. For the leptonic mode, the search was made for events with isolated high-energy leptons and significant missing transverse momentum. For the hadronic decay mode, three-jet events in which two of the jets had an invariant mass consistent with that of the W were selected. No evidence for top production was found. The results are used to constrain single-top production via flavour-changing neutral current (FCNC) transitions. The ZEUS limit excludes a substantial region in the FCNC tugamma coupling not ruled out by other experiments. (C) 2003 Published by Elsevier Science B.V.

Search for single-top production in ep collisions at HERA / S., C., M., D., D., K., J. H., L., S., M., B., M., J., R., R., Y., P., A., G., B., M., B., L., B., D., B., A., B., G., B., G. C., R., L., C., R., C., A., C., M., C., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 559:3-4(2003), pp. 153-170. [10.1016/s0370-2693(03)00333-2]

Search for single-top production in ep collisions at HERA

S. Chekanov;M. Derrick;D. Krakauer;J. H. Loizides;S. Magill;B. Musgrave;J. Repond;R. Yoshida;P. Antonioli;G. Bari;M. Basile;L. Bellagamba;D. Boscherini;A. Bruni;G. Bruni;G. C. Romeo;L. Cifarelli;R. Cindolo;A. Contin;M. Corradi;S. D. Pasquale;P. Giusti;G. Iacobucci;A. Margotti;R. Nania;F. Palmonari;A. Pesci;G. Saitorelli;A. Zichichi;G. Aghuzumtsyan;D. Bartsch;I. Brock;S. Goers;H. Hartmann;E. Hilger;P. Irrgang;H. P. Jakob;A. Kappes;U. F. Katz;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;B. Foster;G. P. Heath;H. F. Heath;S. Robins;E. Rodrigues;J. Scott;R. J. Tapper;M. Wing;A. 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;K. Olkiewicz;P. Stopa;L. Zawiejski;L. Adamczyk;T. Bold;I. Grabowska Bold;D. Kisielewska;A. M. Kowal;M. Kowal;T. Kowalski;M. Przybycien;L. Suszycki;D. Szuba;J. Szuba;A. Kotanski;W. Slominski;U. Behrens;I. Bloch;K. Borras;V. Chiochia;D. Dannheim;G. Drews;J. Fourletova;U. Fricke;A. Geiser;R. Goebel;P. Gottlicher;O. Gutsche;T. Haas;W. Hain;G. F. Hartner;S. Hillert;B. Kahle;U. Kotz;H. Kowalski;G. Kramberger;H. Labes;D. Lelas;B. Lohr;R. Mankel;I. A. Melzer Pellmann;M. Moritz;C. N. Nguyen;D. Notz;M. C. Petrucci;A. Polini;A. Raval;U. Schneekloth;F. Selonke;H. Wessoleck;G. Wolf;C. Youngman;W. Zeuner;S. Schlenstedt;G. Barbagli;E. Gallo;C. Genta;G. Pelfer;A. Bamberger;A. Benen;M. Bell;P. J. Bussey;A. T. Doyle;C. Glasman;J. Hamilton;S. Hanlon;S. W. Lee;A. Lupi;D. H. Saxon;I. O. Skillicorn;I. Gialas;B. Bodmann;T. Carli;U. Holm;K. Klimek;N. Krumnack;E. Lohrmann;M. Milite;H. Salehi;S. Stonjek;K. Wick;A. Ziegler;Ar Ziegler;C. Collins Tooth;C. Foudas;R. Goncalo;K. R. Long;A. D. Tapper;P. Cloth;D. Filges;M. Kuze;K. Nagano;K. Tokushuku;S. Yamada;Y. Yamazaki;A. N. Barakbaev;E. G. Boos;N. S. Pokrovskiy;B. O. Zhautykov;H. Lim;D. Son;K. Piotrzkowski;F. Barreiro;O. Gonzalez;L. Labarga;J. D. Peso;E. Tassi;J. Terron;M. Vazquez;M. Barbi;F. Corriveau;S. Gliga;J. Lainesse;S. Padhi;D. G. Stairs;T. Tsurugai;A. Antonov;P. Danilov;B. A. Dolgoshein;D. Gladkov;V. Sosnovtsev;S. Suchkov;R. K. Dementiev;R. Ermolov;Y. A. Golubkov;I. I. Katkov;L. A. Khein;I. A. Korzhavina;V. A. Kuzmin;B. B. Levchenko;O. Yu Lukina;A. S. Proskuryakov;L. M. Shcheglova;N. N. Vlasov;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. D. Wolf;N. Brummer;B. Bylsma;L. S. Durkin;T. Y. Ling;S. Boogert;A. M. Cooper Sarkar;J. Ferrando;G. Grzelak;T. Matsushita;S. Patel;M. Rigby;M. R. Sutton;R. Walczak;A. Bertolin;R. Brugnera;R. Carlin;F. D. Corso;S. 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;D'AGOSTINI, Giulio;G. Marini;NIGRO, Andrea;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;T. Abe;T. Fusayasu;S. Kagawa;T. Kohno;T. Tawara;T. Yamashita;R. Hamatsu;I. Hirose;M. Inuzuka;S. Kitamura;K. Matsuzawa;T. Nishimura;M. Arneodo;M. I. Ferrero;V. Monaco;M. Ruspa;R. Sacchi;A. Solano;T. Koop;G. M. Levman;J. F. Martin;A. Mirea;J. M. Butterworth;C. Gwenlan;R. Hall Wilton;T. W. Jones;M. S. Lightwood;B. J. West;J. Ciborowski;R. Ciesielski;R. J. Nowak;J. M. Pawlak;J. Sztuk;T. Tymieniecka;A. Ukleja;J. Ukleja;A. F. Zarnecki;M. Adamus;P. Plucinski;Y. Eisenberg;L. K. Gladilin;D. Hochman;U. Karshon;D. Kcira;S. Lammers;L. Li;D. D. Reeder;A. A. Savin;W. H. Smith;A. Deshpande;S. Dhawan;V. W. Hughes;P. B. Straub;S. Bhadra;C. D. Catterall;S. Fourletov;S. Menary;M. Soares;J. Standage

2003

Abstract

A search for single-top production, ep --> et X, has been made with the ZEUS detector at HERA using an integrated luminosity of 130.1 pb(-1). Events from both the leptonic and hadronic decay channels of the W boson resulting from the decay of the top quark were sought. For the leptonic mode, the search was made for events with isolated high-energy leptons and significant missing transverse momentum. For the hadronic decay mode, three-jet events in which two of the jets had an invariant mass consistent with that of the W were selected. No evidence for top production was found. The results are used to constrain single-top production via flavour-changing neutral current (FCNC) transitions. The ZEUS limit excludes a substantial region in the FCNC tugamma coupling not ruled out by other experiments. (C) 2003 Published by Elsevier Science B.V.

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	Anno di pubblicazione
	
				2003
			
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				01 Pubblicazione su rivista::01a Articolo in rivista
			
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				Search for single-top production in ep collisions at HERA / S., C., M., D., D., K., J. H., L., S., M., B., M., J., R., R., Y., P., A., G., B., M., B., L., B., D., B., A., B., G., B., G. C., R., L., C., R., C., A., C., M., C., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 559:3-4(2003), pp. 153-170. [10.1016/s0370-2693(03)00333-2]
			
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				01a Articolo in rivista

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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/394021

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