Search for single-top production in ep collisions at HERA

Abramowicz, H. et al. (2012) Search for single-top production in ep collisions at HERA. Physics Letters B, 708(1-2), pp. 27-36. (doi: 10.1016/j.physletb.2012.01.025)

Abstract

A search for single-top production,<i>ep</i>→ <i>et X</i>, has been performed with the ZEUS detector at HERA using data corresponding to an integrated luminosity of 0.37 fb⁻¹. No evidence for top production was found, consistent with the expectation from the Standard Model. Limits were computed for single-top production via flavour changing neutral current transitions involving a neutral electroweak vector boson, γ or Z. The result was combined with a previous ZEUS result yielding a total luminosity of 0.50 fb⁻¹. A 95% credibility level upper limit of 0.13 pb was obtained for the cross section at the centre-of-mass energy of √s = 315 GeV.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Ferrando, Dr James and Doyle, Professor Anthony and Saxon, Professor David and Bussey, Dr Peter and Skillicorn, Professor Ian
• Authors: Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A.N., Barbagli, G., Bari, G., Barreiro, F., Bartosik, N., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bokhonov, V., Bołd, T., Bondarenko, K., Boos, E.G., Borras, K., Boscherini, D., Bot, D., Brock, I., Brownson, E., Brugnera, R., Brümmer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P.J., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C.D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper-Sarkar, A.M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., DʼAgostini, G., Corso, F. D., del Peso, J., Dementiev, R.K., De Pasquale, S., Derrick, M., Devenish, R.C.E., Dobur, D., Dolgoshein, B.A., Dolinska, G., Doyle, A.T., Drugakov, V., Durkin, L.S., Dusini, S., Eisenberg, Y., Ermolov, P.F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M.I., Figiel, J., Forrest, M., Foster, B., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gladilin, L.K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Y.A., Göttlicher, P., Grabowska-Bołd, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gueta, O., Guzik, M., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J.C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Hori, R., Horton, K., Hüttmann, A., Ibrahim, Z.A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H.-P., Januschek, F., Jones, T.W., Jüngst, M., Kadenko, I., Kahle, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I.I., Kaur, M., Kaur, P., Keramidas, A., Khein, L.A., Kim, J.Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kooijman, P., Korol, I., Korzhavina, I.A., Kotański, A., Kötz, U., Kowalski, H., Kuprash, O., Kuze, M., Lee, A., Levchenko, B.B., Levy, A., Libov, V., Limentani, S., Ling, T.Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., Löhr, B., Lohrmann, E., Long, K.R., Longhin, A., Lontkovskyi, D., Lukina, O.Y., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J.F., Mastroberardino, A., Mattingly, M.C.K., Melzer-Pellmann, I.-A., Mergelmeyer, S., Miglioranzi, S., Idris, F. M., Monaco, V., Montanari, A., Morris, J.D., Mujkic, K., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nigro, A., Ning, Y., Nobe, T., Noor, U., Notz, D., Nowak, R.J., Nuncio-Quiroz, A.E., Oh, B.Y., Okazaki, N., Oliver, K., Olkiewicz, K., Onishchuk, Y., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J.M., Pawlik, B., Pelfer, P.G., Pellegrino, A., Perlański, W., Perrey, H., Piotrzkowski, K., Pluciński, P., Pokrovskiy, N.S., Polini, A., Proskuryakov, A.S., Przybycień, M., Raval, A., Reeder, D.D., Reisert, B., Ren, Z., Repond, J., Ri, Y.D., Robertson, A., Roloff, P., Rubinsky, I., Ruspa, M., Sacchi, R., Salii, A., Samson, U., Sartorelli, G., Savin, A.A., Saxon, D.H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W.B., Schneekloth, U., Schönberg, V., Schörner-Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L.M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I.O., Słomiński, W., Smith, W.H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stern, A., Stewart, T.P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tapper, A.D., Tassi, E., Terrón, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomalak, O., Tomaszewska, J., Tsurugai, T., Turcato, M., Tymieniecka, T., Vázquez, M., Verbytskyi, A., Viazlo, O., Vlasov, N.N., Volynets, O., Walczak, R., Abdullah, W.A.T. W., Whitmore, J.J., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagües-Molina, A.G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Żarnecki, A.F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B.O., Zhmak, N., Zhou, C., Zichichi, A., Zolkapli, Z., Zolko, M., and Zotkin, D.S.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physics Letters B
• ISSN: 0370-2693
• Published Online: 13 January 2012