Measurement of open beauty production in photoproduction at HERA

Breitweg, J.; Chekanov, S.; Mck, Mattingly; Derrick, M.; Krakauer, D.; Magill, S.; Musgrave, B.; Pellegrino, A.; Repond, J.; M. C. K.,; Stanek, R.; Yoshida, R.; Mattingly, Mck C. K.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Romeo, Gc C.; Bruni, A.; Cara Romeo, G.; Pasquale, S. D.; Bruni, G.; Hp, Jakob; Cifarelli, L.; Cindolo, F.; Contin, A.; Uf, Katz; Corradi, M.; De Pasquale, S.; Giusti, P.; Iacobucci, G.; Levi, G.; Kc, Voss; Margotti, A.; Massam, T.; Ds, Bailey; Nania, R.; Aghuzumtsian, G.; Palmonari, F.; Cob{̈o}ken, K.; Pesci, A.; Sartorelli, G.; Aghuzumtsyan, G.; Zichichi, A.; Nh, Brook; Amelung, C.; Gp, Heath; Brock, I.; Coboken, K.; Goers, S.; Hf, Heath; Hartmann, H.; Heinloth, K.; Hilger, E.; Rj, Tapper; Irrgang, P.; Jakob, Hp-P.; Hy, Jeoung; Kappes, A.; Katz, Uf F.; Jy, Kim; Kerger, R.; Kind, O.; Bailey, D. S.; Paul, E.; Jh, Lee; Rautenberg, J.; Schnurbusch, H.; It, Lim; Stifutkin, A.; Tandler, J.; Voss, Kc C.; Weber, A.; Wieber, H.; My, Pac; Barret, O.; Brook, Nh H.; Cole, Je E.; Wb, Schmidke; Heath, Helen F.; Foster, B.; Heath, Gp P.; Mb, Przybycien; Robins, S.; Rodrigues, E.; Scott, J.; Tapper, Rj J.; Am, Kowal; Capua, M.; Mastroberardino, A.; Schioppa, M.; Kj, Ma; Susinno, G.; Zeus, Collaboration; Jeoung, Hy Y.; Ma, K. J.; Kim, Jy Y.; Lee, Jh H.; Lat, Bauerdick; Lim, It T.; Pac, My Y.; Przybycie?, M. B.; Caldwell, A.; Liu, W.; Jk, Bienlein; Liu, X.; Mellado, B.; Jele?, K.; Paganis, S.; Sampson, S.; Schmidke, Wb B.; Przybycie?, M.; Sciulli, F.; Chwastowski, J.; Eskreys, A.; Figiel, J.; L. A. T.,; Klimek, K.; Gf, Hartner; Olkiewicz, K.; Kotan?ski, A.; Piotrzkowski, K.; Przybycien, Mb B.; Wolf, G.; Stopa, P.; Zawiejski, L.; Bednarek, B.; Jelen, K.; Kisielewska, D.; Mc, Petrucci; Kowal, Am M.; Kowalski, T.; Przybycien, M.; Aa, Savin; Rulikowska Zarebska, E.; G{̈o}ttlicher, P.; Suszycki, L.; Szuba, D.; Kotanński, A.; Kotanski, A.; Bauerdick, Lat A. T.; Behrens, U.; Bienlein, Jk K.; Borras, K.; K{̈o}tz, U.; Chiochia, V.; Pb, Straub; Crittenden, J.; Dannheim, D.; Desler, K.; L{̈o}hr, B.; Drews, G.; Fox Murphy, A.; Pg, Pelfer; Fricke, U.; Goebel, F.; Göttlicher, P.; Gottlicher, P.; Pj, Bussey; Graciani, R.; Haas, Tobias M.; Hain, W.; At, Doyle; Hartner, Gf F.; Hebbel, K.; Hillert, S.; Sw, Lee; Koch, W.; Kotz, U.; Kötz, U.; Gj, McCance; Kowalski, H.; Löhr, B.; Labes, H.; Lohr, B.; Mankel, R.; Dh, Saxon; Martens, J.; Martinez, M.; Le, Sinclair; Milite, M.; Moritz, M.; Io, Skillicorn; Notz, D.; Petrucci, Mc C.; Polini, A.; Rohde, M.; Savin, Aa A.; Schneekloth, U.; Kr, Long; Selonke, F.; Sievers, M.; Stonjek, S.; W{̈o}lfle, S.; Lopez Duran Viani, Amaya; Db, Miller; Wollmer, U.; Ad, Tapper; Youngman, C.; Zeuner, W.; Coldewey, C.; Meyer, A.; Eg, Boos; Schlenstedt, S.; Straub, Pb B.; Barbagli, G.; Ns, Pokrovskiy; Gallo, E.; Parenti, A.; Pelfer, Pg G.; Bo, Zhautykov; Bamberger, A.; Benen, A.; Coppola, N.; An, Barakbaev; Eisenhardt, S.; Markun, P.; Raach, H.; Wolfle, S.; Wölfle, S.; Sh, Ahn; Bussey, Pj J.; Sb, Lee; Bell, M.; Doyle, At T.; K?ira, D.; Glasman, C.; Lee, Sw W.; Gon?alo, R.; Bodmann, B.; Lupi, A.; Wolf, E. D.; Macdonald, N.; McCance, Gj J.; Sk, Park; Saxon, Dh H.; Sinclair, Le E.; Viani, Ald; Skillicorn, Io O.; Waugh, R.; Dg, Stairs; Gendner, N.; Bodman, B.; Holm, U.; Salehi, H.; Wick, K.; Ba, Dolgoshein; Yildirim, A.; Carli, T.; A. L. D.,; Garfagnini, A.; Bailey, Ds C.; Geiser, A.; Kçira, D.; Gialas, I.; Rk, Dementev; Kcira, D.; Klanner, R.; Gonçalo, R.; Lohrmann, E.; Peso, J. D.; Goncalo, R.; Long, Kr R.; Pf, Ermolov; Miller, Db B.; Ya, Golubkov; Tapper, Ad D.; Walker, R.; Cloth, P.; Ii, Katkov; Filges, D.; Ishii, T.; Kuze, M.; La, Khein; Nagano, K.; Golubkov, Y.-U. A.; Tokushuku, K.; Yamada, S.; Park, S. K.; Yamazaki, Y.; del Peso, J.; Na, Korotkova; Boos, Eg G.; Barakbaev, An N.; Pokrovskiy, Ns S.; Ia, Korzhavina; Zhautykov, Bo O.; Va, Kuzmin; Ahn, Sh H.; Lee, Sb B.; Vázquez, M.; Lim, H.; Oy, Lukina; Son, D.; Barreiro, F.; Garcia, G.; As, Proskuryakov; Gonzalez, O.; Labarga, L.; Redondo, I.; Lm, Shcheglova; Terron, J.; An, Solomin; Barbi, M.; Nn, Vlasov; Corriveau, F.; Dementev, R. K.; Padhi, S.; Stairs, Dg G.; Sa, Zotkin; Wing, M.; Tsurugai, T.; Vazquez, M.; Antonov, A.; Bashkirov, V.; Br{̈u}mmer, N.; Danilov, M.; Jj, Velthuis; Dolgoshein, B. A.; Gladkov, D.; Sighem, A. V.; Sosnovtsev, V.; Suchkov, S.; Ls, Durkin; Golubkov, Y. A.; Ermolov, Pf F.; Cm, Ginsburg; Katkov, I. I.; Cl, Kim; Khein, La A.; Korotkova, Na A.; Dementiev, Rk K.; Korzhavina, Ia A.; van Sighem, Adrianus Izaak; Kuzmin, Va A.; Ty, Ling; Am, Cooper Sarkar; Lukina, Oy Y.-U.; Proskuryakov, As S.; Shcheglova, Lm M.; Rce, Devenish; Solomin, An N.; Vlasov, Nn N.; Golubkov, Ya A.; Zotkin, Sa A.; Bokel, C.; de Wolf, E.; Brümmer, N.; Botje, M.; Others, collaboration Zeus; Engelen, J.; Grijpink, S.; Mr, Sutton; Koffeman, E.; Brummer, N.; Kooijman, P.; R. C. E.,; Schagen, S.; Tassi, E.; Tiecke, H.; Corso, F. D.; Tuning, N.; Velthuis, Jj J.; Vossebeld, Joost; By, Oh; Cooper Sarkar, Amanda M.; Wiggers, L.; Bylsma, B.; Jr, Okrasinski; Durkin, Ls S.; Gilmore, J.; Okrasi?ski,; Ginsburg, Cm M.; Prb, Saull; Kim, Cl L.; Ling, Ty Y.; Boogert, S.; Ws, Toothacker; Devenish, Rce C. E.; P. R. B.,; Matsushita, T.; Jj, Whitmore; Ruske, O.; Grosse Knetter, J.; Sutton, Mr R.; Walczak, R.; Bertolin, A.; Hfw, Sadrozinski; Brugnera, R.; H. F. W.,; Carlin, R.; Dc, Williams; Dal Corso, F.; Dusini, S.; Limentani, S.; Longhin, A.; Ih, Park; Posocco, M.; Stanco, L.; Turcato, M.; Adamczyk, L.; Heusch, C.; Iannotti, L.; Sadrozinski, H. F.-W.; Oh, By Y.; Seiden, A.; Okrasinski, J. R.; Williams, D. C.; Wichmann, R.; Saull, Prb R. B.; Whitmore, Jj J.; Park, I. H.; Toothacker, Ws S.; Pavel, N.; Mi, Ferrero; Abramowicz, H.; Iga, Y.; Dagan, S.; D'Agostini, G.; Gabareen, A.; Marini, G.; Kananov, S.; Nigro, A.; Kreisel, A.; Cormack, C.; Levy, A.; Hart, Jc C.; Abe, T.; McCubbin, Na A.; Fusayasu, T.; Kohno, T.; Shah, Tp P.; Epperson, D. A.; Yamashita, T.; Dc, Bailey; Umemori, K.; Hamatsu, R.; Hirose, T.; Inuzuka, M.; Cp, Fagerstroem; Kitamura, S.; Matsuzawa, K.; Nishimura, T.; Arneodo, M.; Gm, Levman; Cartiglia, N.; Cirio, R.; Costa, M.; Bailey, David C.; Ferrero, M. I.; Maselli, S.; Monaco, V.; Jf, Martin; Peroni, C.; Ruspa, M.; Sacchi, R.; Solano, A.; Jm, Butterworth; Staiano, A.; Fagerstroem, C.-P.; Galea, R.; Me, Hayes; Bailey, D. C.; Koop, T.; Levman, G. M.; Martin, J. F.; Ea, Heaphy; Mirea, A.; Sabetfakhri, Ali; Butterworth, J. M.; Gwenlan, C.; Tw, Jones; Hayes, M. E.; Heaphy, E. A.; Jb, Lane; Jones, T. W.; West, B. J.; Lane, J. B.; Bj, West; Ciborowski, J.; Ciesielski, R.; Grzelak, G.; Rj, Nowak; Nowak, R. J.; Pawlak, J. M.; Jm, Pawlak; Pawlak, R.; Smalska, B.; Wroblewski, A. K.; Tymieniecka, T.; Zakrzewski, Janusz Andrzej; Zarnecki, A. F.; Ak, Wroblewski; Ja, Zakrzewski; Af, Zarnecki; Adamus, M.; Gadaj, T.; Deppe, O.; Eisenberg, Y.; Lk, Gladilin; Gladilin, L. K.; Hochman, D.; Karshon, U.; Wf, Badgett; Badgett, W. F.; Chapin, D.; Cross, Richard N.; Foudas, C.; Mattingly, S.; Dd, Reeder; Wh, Smith; Reeder, D. D.; Smith, W. H.; Vaiciulis, A.; Wildschek, T.; Wodarczyk, M.; Deshpande, A.; Vw, Hughes; Dhawan, S.; Hughes, V. W.; Bhadra, S.; Cd, Catterall; Catterall, C. D.; Wr, Frisken; Frisken, William R.; Hall Wilton, R.; Khakzad, M.; Sr, Menary; Menary, Scott R.

Published in

SpringerOpen, The European Physical Journal C, 4(18), p. 625-637, 2001

DOI: 10.1007/s100520100571

Tools

Export citation

Search in Google Scholar

Measurement of open beauty production in photoproduction at HERA

Journal article published in 2001 by J. Breitweg, S. Chekanov, Mattingly Mck, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, M. C. K., R. Stanek, R. Yoshida, Mck C. K. Mattingly, P. Antonioli, G. Bari and other authors.

This paper is made freely available by the publisher.

Full text: Download

Preprint: archiving allowed

Upload

Postprint: archiving allowed

Upload

Published version: archiving allowed

Upload

Policy details

Data provided by

Abstract

The production and semi-leptonic decay of heavy quarks have been studied in the photoproduction process $e^+p -> e^+ + {dijet} + e^- + X with the ZEUS detector at HERA using an integrated luminosity of 38.5 ${\rm pb^{-1}}$. Events with photon-proton centre-of-mass energies, $W_{γ p}$, between 134 and 269 GeV and a photon virtuality, Q^2, less than 1 ${\rm GeV^2}$ were selected requiring at least two jets of transverse energy $E_T^{\rm jet1(2)} >7(6)$ GeV and an electron in the final state. The electrons were identified by employing the ionisation energy loss measurement. The contribution of beauty quarks was determined using the transverse momentum of the electron relative to the axis of the closest jet, $p_T^{\rm rel}$. The data, after background subtraction, were fit with a Monte Carlo simulation including beauty and charm decays. The measured beauty cross section was extrapolated to the parton level with the b quark restricted to the region of transverse momentum $p_T^{b} > p_T^{\rm min} =$ 5 GeV and pseudorapidity $|η^{b}| <$ 2. The extrapolated cross section is $1.6 ± 0.4 (stat.)^{+0.3}_{-0.5} (syst.) ^{+0.2}_{-0.4} (ext.) {nb}$. The result is compared to a perturbative QCD calculation performed to next-to-leading order.

Published in

Links

Tools

Measurement of open beauty production in photoproduction at HERA

Abstract