Measurement of charm and beauty dijet cross sections in photoproduction at HERA using the H1 vertex detector

Aktas, A; Andreev, V; Anthonis, T; Antunovic, B; Aplin, S; Asmone, A; Astvatsatourov, A; Babaev, A; Backovic, S; Baghdasaryan, A; Baranov, P; Barrelet, E; Bartel, W; Baudrand, S; Baumgartner, S; Becker, J; Beckingham, M; Behnke, O; Behrendt, O; Belousov, A; Berger, N; Bizot, JC; Boenig, M-O; Boudry, V; Bracinik, J; Brandt, G; Brisson, V; Bruncko, D; Busser, FW; Bunyatyan, A; Buschhorn, G; Bystritskaya, L; Campbell, AJ; Cassol-Brunner, F; Cerny, K; Cerny, V; Chekelian, V; Contreras, JG; Coughlan, JA; Cox, BE; Cozzika, G; Cvach, J; Dainton, JB; Dau, WD; Daum, K; de Boer, Y; Delcourt, B; Del Degan, M; de Roeck, A; de Wolf, EA; Diaconu, C; Dodonov, V; Dubak, A; Eckerlin, G; Efremenko, V; Egli, S; Eichler, R; Eisele, F; Eliseev, A; Elsen, E; Essenov, S; Falkewicz, A; Faulkner, PJW; Favart, L; Fedotov, A; Felst, R; Feltesse, J; Ferencei, J; Finke, L; Fleischer, M; Flucke, G; Fomenko, A; Franke, G; Frisson, T; Gabathuler, E; Garutti, E; Gayler, J; Gerlich, C; Ghazaryan, S; Ginzburgskaya, S; Glazov, A; Glushkov, I; Goerlich, L; Goettlich, M; Gogitidze, N; Gorbounov, S; Grab, C; Greenshaw, T; Gregori, M; Grell, BR; Grindhammer, G; Gwilliam, C; Haidt, D; Hajduk, L; Hansson, M; Heinzelmann, G; Henderson, RCW; Henschel, H; Herrera, G; Hildebrandt, M; Hiller, KH; Hoffmann, D; Horisberger, R; Hovhannisyan, A; Hreus, T; Hussain, S; Ibbotson, M; Ismail, M; Jacquet, M; Janauschek, L; Janssen, X; Jemanov, V; Jonsson, L; Johnson, DP; Jung, AW; Jung, H; Kapichine, M; Katzy, J; Kenyon, IR; Kiesling, C; Klein, M; Kleinwort, C; Klimkovich, T; Kluge, T; Knies, G; Knutsson, A; Korbel, V; Kostka, P; Krastev, K; Kretzschmar, J; Kropivnitskaya, A; Kruger, K; Landon, MPJ; Lange, W; Lastovicka-Medin, G; Laycock, P; Lebedev, A; Leibenguth, G; Lendermann, V; Levonian, S; Lindfeld, L; Lipka, K; Liptaj, A; List, B; List, J; Lobodzinska, E; Loktionova, N; Lopez-Fernandez, R; Lubimov, V; Lucaci-Timoce, A-I; Lueders, H; Luke, D; Lux, T; Lytkin, L; Makankine, A; Malden, N; Malinovski, E; Mangano, S; Marage, P; Marshall, R; Marti, L; Martisikova, M; Martyn, H-U; Maxfield, SJ; Mehta, A; Meier, K; Meyer, AB; Meyer, H; Meyer, J; Michels, V; Mikocki, S; Milcewicz-Mika, I; Milstead, D; Mladenov, D; Mohamed, A; Moreau, F; Morozov, A; Morris, JV; Mozer, MU; Muller, K; Murin, P; Nankov, K; Naroska, B; Naumann, Th; Newman, PR; Niebuhr, C; Nikiforov, A; Nowak, G; Nowak, K; Nozicka, M; Oganezov, R; Olivier, B; Olsson, JE; Osman, S; Ozerov, D; Palichik, V; Panagoulias, I; Papadopoulou, T; Pascaud, C; Patel, GD; Peng, H; Perez, E; Perez-Astudillo, D; Perieanu, A; Petrukhin, A; Pitzl, D; Placakyte, R; Portheault, B; Povh, B; Prideaux, P; Rahmat, AJ; Raicevic, N; Reimer, P; Rimmer, A; Risler, C; Rizvi, E; Robmann, P; Roland, B; Roosen, R; Rostovtsev, A; Rurikova, Z; Rusakov, S; Salvaire, F; Sankey, DPC; Sauvan, E; Schatzel, S; Schmidt, S; Schmitt, S; Schmitz, C; Schoeffel, L; Schoning, A; Schultz-Coulon, H-C; Sefkow, F; Shaw-West, RN; Sheviakov, I; Shtarkov, LN; Sloan, T; Smirnov, P; Soloviev, Y; South, D; Spaskov, V; Specka, A; Steder, M; Stella, B; Stiewe, J; Stoilov, A; Straumann, U; Sunar, D; Tchoulakov, V; Thompson, G; Thompson, PD; Toll, T; Tomasz, F; Traynor, D; Truol, P; Tsakov, I; Tsipolitis, G; Tsurin, I; Turnau, J; Tzamariudaki, E; Urban, K; Urban, M; Usik, A; Utkin, D; Valkarova, A; Vallee, C; van Mechelen, P; Vargas Trevino, A; Vazdik, Y; Veelken, C; Vinokurova, S; Volchinski, V; Wacker, K; Weber, G; Weber, R; Wegener, D; Werner, C; Wessels, M; Wessling, B; Wissing, Ch; Wolf, R; Wunsch, E; Xella, S; Yan, W; Yeganov, V; Zacek, J; Zalesak, J; Zhang, Z; Zhelezov, A; Zhokin, A; Zhu, YC; Zimmermann, J; Zimmermann, T; Zohrabyan, H; Zomer, F

dc.contributor.author	Aktas, A	en
dc.contributor.author	Andreev, V	en
dc.contributor.author	Anthonis, T	en
dc.contributor.author	Antunovic, B	en
dc.contributor.author	Aplin, S	en
dc.contributor.author	Asmone, A	en
dc.contributor.author	Astvatsatourov, A	en
dc.contributor.author	Babaev, A	en
dc.contributor.author	Backovic, S	en
dc.contributor.author	Baghdasaryan, A	en
dc.contributor.author	Baranov, P	en
dc.contributor.author	Barrelet, E	en
dc.contributor.author	Bartel, W	en
dc.contributor.author	Baudrand, S	en
dc.contributor.author	Baumgartner, S	en
dc.contributor.author	Becker, J	en
dc.contributor.author	Beckingham, M	en
dc.contributor.author	Behnke, O	en
dc.contributor.author	Behrendt, O	en
dc.contributor.author	Belousov, A	en
dc.contributor.author	Berger, N	en
dc.contributor.author	Bizot, JC	en
dc.contributor.author	Boenig, M-O	en
dc.contributor.author	Boudry, V	en
dc.contributor.author	Bracinik, J	en
dc.contributor.author	Brandt, G	en
dc.contributor.author	Brisson, V	en
dc.contributor.author	Bruncko, D	en
dc.contributor.author	Busser, FW	en
dc.contributor.author	Bunyatyan, A	en
dc.contributor.author	Buschhorn, G	en
dc.contributor.author	Bystritskaya, L	en
dc.contributor.author	Campbell, AJ	en
dc.contributor.author	Cassol-Brunner, F	en
dc.contributor.author	Cerny, K	en
dc.contributor.author	Cerny, V	en
dc.contributor.author	Chekelian, V	en
dc.contributor.author	Contreras, JG	en
dc.contributor.author	Coughlan, JA	en
dc.contributor.author	Cox, BE	en
dc.contributor.author	Cozzika, G	en
dc.contributor.author	Cvach, J	en
dc.contributor.author	Dainton, JB	en
dc.contributor.author	Dau, WD	en
dc.contributor.author	Daum, K	en
dc.contributor.author	de Boer, Y	en
dc.contributor.author	Delcourt, B	en
dc.contributor.author	Del Degan, M	en
dc.contributor.author	de Roeck, A	en
dc.contributor.author	de Wolf, EA	en
dc.contributor.author	Diaconu, C	en
dc.contributor.author	Dodonov, V	en
dc.contributor.author	Dubak, A	en
dc.contributor.author	Eckerlin, G	en
dc.contributor.author	Efremenko, V	en
dc.contributor.author	Egli, S	en
dc.contributor.author	Eichler, R	en
dc.contributor.author	Eisele, F	en
dc.contributor.author	Eliseev, A	en
dc.contributor.author	Elsen, E	en
dc.contributor.author	Essenov, S	en
dc.contributor.author	Falkewicz, A	en
dc.contributor.author	Faulkner, PJW	en
dc.contributor.author	Favart, L	en
dc.contributor.author	Fedotov, A	en
dc.contributor.author	Felst, R	en
dc.contributor.author	Feltesse, J	en
dc.contributor.author	Ferencei, J	en
dc.contributor.author	Finke, L	en
dc.contributor.author	Fleischer, M	en
dc.contributor.author	Flucke, G	en
dc.contributor.author	Fomenko, A	en
dc.contributor.author	Franke, G	en
dc.contributor.author	Frisson, T	en
dc.contributor.author	Gabathuler, E	en
dc.contributor.author	Garutti, E	en
dc.contributor.author	Gayler, J	en
dc.contributor.author	Gerlich, C	en
dc.contributor.author	Ghazaryan, S	en
dc.contributor.author	Ginzburgskaya, S	en
dc.contributor.author	Glazov, A	en
dc.contributor.author	Glushkov, I	en
dc.contributor.author	Goerlich, L	en
dc.contributor.author	Goettlich, M	en
dc.contributor.author	Gogitidze, N	en
dc.contributor.author	Gorbounov, S	en
dc.contributor.author	Grab, C	en
dc.contributor.author	Greenshaw, T	en
dc.contributor.author	Gregori, M	en
dc.contributor.author	Grell, BR	en
dc.contributor.author	Grindhammer, G	en
dc.contributor.author	Gwilliam, C	en
dc.contributor.author	Haidt, D	en
dc.contributor.author	Hajduk, L	en
dc.contributor.author	Hansson, M	en
dc.contributor.author	Heinzelmann, G	en
dc.contributor.author	Henderson, RCW	en
dc.contributor.author	Henschel, H	en
dc.contributor.author	Herrera, G	en
dc.contributor.author	Hildebrandt, M	en
dc.contributor.author	Hiller, KH	en
dc.contributor.author	Hoffmann, D	en
dc.contributor.author	Horisberger, R	en
dc.contributor.author	Hovhannisyan, A	en
dc.contributor.author	Hreus, T	en
dc.contributor.author	Hussain, S	en
dc.contributor.author	Ibbotson, M	en
dc.contributor.author	Ismail, M	en
dc.contributor.author	Jacquet, M	en
dc.contributor.author	Janauschek, L	en
dc.contributor.author	Janssen, X	en
dc.contributor.author	Jemanov, V	en
dc.contributor.author	Jonsson, L	en
dc.contributor.author	Johnson, DP	en
dc.contributor.author	Jung, AW	en
dc.contributor.author	Jung, H	en
dc.contributor.author	Kapichine, M	en
dc.contributor.author	Katzy, J	en
dc.contributor.author	Kenyon, IR	en
dc.contributor.author	Kiesling, C	en
dc.contributor.author	Klein, M	en
dc.contributor.author	Kleinwort, C	en
dc.contributor.author	Klimkovich, T	en
dc.contributor.author	Kluge, T	en
dc.contributor.author	Knies, G	en
dc.contributor.author	Knutsson, A	en
dc.contributor.author	Korbel, V	en
dc.contributor.author	Kostka, P	en
dc.contributor.author	Krastev, K	en
dc.contributor.author	Kretzschmar, J	en
dc.contributor.author	Kropivnitskaya, A	en
dc.contributor.author	Kruger, K	en
dc.contributor.author	Landon, MPJ	en
dc.contributor.author	Lange, W	en
dc.contributor.author	Lastovicka-Medin, G	en
dc.contributor.author	Laycock, P	en
dc.contributor.author	Lebedev, A	en
dc.contributor.author	Leibenguth, G	en
dc.contributor.author	Lendermann, V	en
dc.contributor.author	Levonian, S	en
dc.contributor.author	Lindfeld, L	en
dc.contributor.author	Lipka, K	en
dc.contributor.author	Liptaj, A	en
dc.contributor.author	List, B	en
dc.contributor.author	List, J	en
dc.contributor.author	Lobodzinska, E	en
dc.contributor.author	Loktionova, N	en
dc.contributor.author	Lopez-Fernandez, R	en
dc.contributor.author	Lubimov, V	en
dc.contributor.author	Lucaci-Timoce, A-I	en
dc.contributor.author	Lueders, H	en
dc.contributor.author	Luke, D	en
dc.contributor.author	Lux, T	en
dc.contributor.author	Lytkin, L	en
dc.contributor.author	Makankine, A	en
dc.contributor.author	Malden, N	en
dc.contributor.author	Malinovski, E	en
dc.contributor.author	Mangano, S	en
dc.contributor.author	Marage, P	en
dc.contributor.author	Marshall, R	en
dc.contributor.author	Marti, L	en
dc.contributor.author	Martisikova, M	en
dc.contributor.author	Martyn, H-U	en
dc.contributor.author	Maxfield, SJ	en
dc.contributor.author	Mehta, A	en
dc.contributor.author	Meier, K	en
dc.contributor.author	Meyer, AB	en
dc.contributor.author	Meyer, H	en
dc.contributor.author	Meyer, J	en
dc.contributor.author	Michels, V	en
dc.contributor.author	Mikocki, S	en
dc.contributor.author	Milcewicz-Mika, I	en
dc.contributor.author	Milstead, D	en
dc.contributor.author	Mladenov, D	en
dc.contributor.author	Mohamed, A	en
dc.contributor.author	Moreau, F	en
dc.contributor.author	Morozov, A	en
dc.contributor.author	Morris, JV	en
dc.contributor.author	Mozer, MU	en
dc.contributor.author	Muller, K	en
dc.contributor.author	Murin, P	en
dc.contributor.author	Nankov, K	en
dc.contributor.author	Naroska, B	en
dc.contributor.author	Naumann, Th	en
dc.contributor.author	Newman, PR	en
dc.contributor.author	Niebuhr, C	en
dc.contributor.author	Nikiforov, A	en
dc.contributor.author	Nowak, G	en
dc.contributor.author	Nowak, K	en
dc.contributor.author	Nozicka, M	en
dc.contributor.author	Oganezov, R	en
dc.contributor.author	Olivier, B	en
dc.contributor.author	Olsson, JE	en
dc.contributor.author	Osman, S	en
dc.contributor.author	Ozerov, D	en
dc.contributor.author	Palichik, V	en
dc.contributor.author	Panagoulias, I	en
dc.contributor.author	Papadopoulou, T	en
dc.contributor.author	Pascaud, C	en
dc.contributor.author	Patel, GD	en
dc.contributor.author	Peng, H	en
dc.contributor.author	Perez, E	en
dc.contributor.author	Perez-Astudillo, D	en
dc.contributor.author	Perieanu, A	en
dc.contributor.author	Petrukhin, A	en
dc.contributor.author	Pitzl, D	en
dc.contributor.author	Placakyte, R	en
dc.contributor.author	Portheault, B	en
dc.contributor.author	Povh, B	en
dc.contributor.author	Prideaux, P	en
dc.contributor.author	Rahmat, AJ	en
dc.contributor.author	Raicevic, N	en
dc.contributor.author	Reimer, P	en
dc.contributor.author	Rimmer, A	en
dc.contributor.author	Risler, C	en
dc.contributor.author	Rizvi, E	en
dc.contributor.author	Robmann, P	en
dc.contributor.author	Roland, B	en
dc.contributor.author	Roosen, R	en
dc.contributor.author	Rostovtsev, A	en
dc.contributor.author	Rurikova, Z	en
dc.contributor.author	Rusakov, S	en
dc.contributor.author	Salvaire, F	en
dc.contributor.author	Sankey, DPC	en
dc.contributor.author	Sauvan, E	en
dc.contributor.author	Schatzel, S	en
dc.contributor.author	Schmidt, S	en
dc.contributor.author	Schmitt, S	en
dc.contributor.author	Schmitz, C	en
dc.contributor.author	Schoeffel, L	en
dc.contributor.author	Schoning, A	en
dc.contributor.author	Schultz-Coulon, H-C	en
dc.contributor.author	Sefkow, F	en
dc.contributor.author	Shaw-West, RN	en
dc.contributor.author	Sheviakov, I	en
dc.contributor.author	Shtarkov, LN	en
dc.contributor.author	Sloan, T	en
dc.contributor.author	Smirnov, P	en
dc.contributor.author	Soloviev, Y	en
dc.contributor.author	South, D	en
dc.contributor.author	Spaskov, V	en
dc.contributor.author	Specka, A	en
dc.contributor.author	Steder, M	en
dc.contributor.author	Stella, B	en
dc.contributor.author	Stiewe, J	en
dc.contributor.author	Stoilov, A	en
dc.contributor.author	Straumann, U	en
dc.contributor.author	Sunar, D	en
dc.contributor.author	Tchoulakov, V	en
dc.contributor.author	Thompson, G	en
dc.contributor.author	Thompson, PD	en
dc.contributor.author	Toll, T	en
dc.contributor.author	Tomasz, F	en
dc.contributor.author	Traynor, D	en
dc.contributor.author	Truol, P	en
dc.contributor.author	Tsakov, I	en
dc.contributor.author	Tsipolitis, G	en
dc.contributor.author	Tsurin, I	en
dc.contributor.author	Turnau, J	en
dc.contributor.author	Tzamariudaki, E	en
dc.contributor.author	Urban, K	en
dc.contributor.author	Urban, M	en
dc.contributor.author	Usik, A	en
dc.contributor.author	Utkin, D	en
dc.contributor.author	Valkarova, A	en
dc.contributor.author	Vallee, C	en
dc.contributor.author	van Mechelen, P	en
dc.contributor.author	Vargas Trevino, A	en
dc.contributor.author	Vazdik, Y	en
dc.contributor.author	Veelken, C	en
dc.contributor.author	Vinokurova, S	en
dc.contributor.author	Volchinski, V	en
dc.contributor.author	Wacker, K	en
dc.contributor.author	Weber, G	en
dc.contributor.author	Weber, R	en
dc.contributor.author	Wegener, D	en
dc.contributor.author	Werner, C	en
dc.contributor.author	Wessels, M	en
dc.contributor.author	Wessling, B	en
dc.contributor.author	Wissing, Ch	en
dc.contributor.author	Wolf, R	en
dc.contributor.author	Wunsch, E	en
dc.contributor.author	Xella, S	en
dc.contributor.author	Yan, W	en
dc.contributor.author	Yeganov, V	en
dc.contributor.author	Zacek, J	en
dc.contributor.author	Zalesak, J	en
dc.contributor.author	Zhang, Z	en
dc.contributor.author	Zhelezov, A	en
dc.contributor.author	Zhokin, A	en
dc.contributor.author	Zhu, YC	en
dc.contributor.author	Zimmermann, J	en
dc.contributor.author	Zimmermann, T	en
dc.contributor.author	Zohrabyan, H	en
dc.contributor.author	Zomer, F	en
dc.date.accessioned	2014-03-01T01:24:37Z
dc.date.available	2014-03-01T01:24:37Z
dc.date.issued	2006	en
dc.identifier.issn	1434-6044	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17356
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	INITIAL-STATE RADIATION	en
dc.subject.other	CARLO GENERATOR CASCADE	en
dc.subject.other	PARTON DISTRIBUTIONS	en
dc.subject.other	QCD COHERENCE	en
dc.subject.other	SMALL-X	en
dc.subject.other	D-ASTERISK(+/-)	en
dc.subject.other	COLLISIONS	en
dc.subject.other	PHYSICS	en
dc.subject.other	PROTON	en
dc.subject.other	MESONS	en
dc.title	Measurement of charm and beauty dijet cross sections in photoproduction at HERA using the H1 vertex detector	en
heal.type	journalArticle	en
heal.identifier.primary	10.1140/epjc/s2006-02616-5	en
heal.identifier.secondary	http://dx.doi.org/10.1140/epjc/s2006-02616-5	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	A measurement of charm and beauty dijet photoproduction cross sections at the ep collider HERA is presented. Events are selected with two or more jets of transverse momentum ptjet1(2) > 11(8) GeV in the central range of pseudo-rapidity -0.9 < ηjet1(2) < 1.3. The fractions of events containing charm and beauty quarks are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the HI central vertex detector. Differential dijet cross sections for charm and beauty, and their relative contributions to the flavour inclusive dijet photoproduction cross section, are measured as a function of the transverse momentum of the leading jet, the average pseudo-rapidity of the two jets and the observable xγobs. Taking into account the theoretical uncertainties, the charm cross sections are consistent with a QCD calculation in next-to-leading order, while the predicted cross sections for beauty production are somewhat lower than the measurement.	en
heal.publisher	SPRINGER	en
heal.journalName	European Physical Journal C	en
dc.identifier.doi	10.1140/epjc/s2006-02616-5	en
dc.identifier.isi	ISI:000241559900003	en
dc.identifier.volume	47	en
dc.identifier.issue	3	en
dc.identifier.spage	597	en
dc.identifier.epage	610	en