Measurement of F2cc̄ and F2bb̄ at low Q2 and x using the HI vertex detector at HERA

Aktas, A; Andreev, V; Anthonis, T; Aplin, S; Asmone, A; Astvatsatourov, A; Babaev, A; Backovic, S; Bahr, J; Baghdasaryan, A; Baranov, P; Barrelet, E; Bartel, W; Baudrand, S; Baumgartner, S; Becker, J; Beckingham, M; Behnke, O; Behrendt, O; Belousov, A; Berger, C; Berger, N; Bizot, JC; Boenig, M-O; Boudry, V; Bracinik, J; Brandt, G; Brisson, V; Brown, DP; Bruncko, D; Busser, FW; Bunyatyan, A; Buschhorn, G; Bystritskaya, L; Campbell, AJ; Caron, S; 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; de Roeck, A; Desch, K; de Wolf, EA; Diaconu, C; Dodonov, V; Dubak, A; Eckerlin, G; Efremenko, V; Egli, S; Eichler, R; Eisele, F; Ellerbrock, M; Elsen, E; Erdmann, W; Essenov, S; Falkewicz, A; Faulkner, PJW; Favart, L; Fedotov, A; Felst, R; Ferencei, J; Finke, L; Fleischer, M; Fleischmann, P; Fleming, YH; Flucke, G; Fomenko, A; Foresti, I; 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; Goyon, C; Grab, C; Greenshaw, T; Gregori, M; Grell, BR; Grindhammer, G; Gwilliam, C; Haidt, D; Hajduk, L; Hansson, M; Heinzelmann, G; Henderson, RCW; Henschel, H; Henshaw, O; 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; Keller, N; 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; Kuckens, J; Landon, MPJ; Lange, W; Lastovicka, T; Lastovicka-Medin, G; Laycock, P; Lebedev, A; Leibenguth, G; Lendermann, V; Levonian, S; Lindfeld, L; Lipka, K; Liptaj, A; List, B; 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; Martisikova, M; Martyn, H-U; Maxfield, SJ; Meer, D; Mehta, A; Meier, K; Meyer, AB; Meyer, H; Meyer, J; 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, T; Newman, PR; Niebuhr, C; Nikiforov, A; Nikitin, D; Nowak, G; Nozicka, M; Oganezov, R; Olivier, B; Olsson, JE; Osman, S; Ozerov, D; Palichik, V; Panagoulias, I; Papadopoulou, T; Pascaud, C; Patel, GD; Peez, M; Perez, E; Perez-Astudillo, D; Perieanu, A; Petrukhin, A; Pitzl, D; Placakyte, R; Portheault, B; Povh, B; Prideaux, P; 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; Schilling, F-P; Schmidt, S; Schmitt, S; Schmitz, C; Schoeffel, L; Schoning, A; Schultz-Coulon, H-C; Sedlak, K; Sefkow, F; Shaw-West, RN; Sheviakov, I; Shtarkov, LN; Sloan, T; Smirnov, P; Soloviev, Y; South, D; Spaskov, V; Specka, A; Stella, B; Stiewe, J; Strauch, I; Straumann, U; Tchoulakov, V; Thompson, G; Thompson, PD; Tomasz, F; Traynor, D; Truol, P; Tsakov, I; Tsipolitis, G; Tsurin, I; Turnau, J; Tzamariudaki, E; Urban, M; Usik, A; Utkin, D; Valkar, S; Valkarova, A; Vallee, C; van Mechelen, P; Vargas Trevino, A; Vazdik, Y; Veelken, C; Vest, A; Vinokurova, S; Volchinski, V; Vujicic, B; Wacker, K; Wagner, J; Weber, G; Weber, R; Wegener, D; Werner, C; Werner, N; Wessels, M; Wessling, B; Wigmore, C; Wissing, C; 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	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	Bahr, J	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, C	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	Brown, DP	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	Caron, S	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	de Roeck, A	en
dc.contributor.author	Desch, K	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	Ellerbrock, M	en
dc.contributor.author	Elsen, E	en
dc.contributor.author	Erdmann, W	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	Ferencei, J	en
dc.contributor.author	Finke, L	en
dc.contributor.author	Fleischer, M	en
dc.contributor.author	Fleischmann, P	en
dc.contributor.author	Fleming, YH	en
dc.contributor.author	Flucke, G	en
dc.contributor.author	Fomenko, A	en
dc.contributor.author	Foresti, I	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
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dc.contributor.author	Ginzburgskaya, S	en
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dc.contributor.author	Gogitidze, N	en
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dc.contributor.author	Greenshaw, T	en
dc.contributor.author	Gregori, M	en
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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
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dc.contributor.author	Jonsson, L	en
dc.contributor.author	Johnson, DP	en
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dc.contributor.author	Loktionova, N	en
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dc.contributor.author	Lucaci-Timoce, A-I	en
dc.contributor.author	Lueders, H	en
dc.contributor.author	Luke, D	en
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dc.contributor.author	Makankine, A	en
dc.contributor.author	Malden, N	en
dc.contributor.author	Malinovski, E	en
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dc.contributor.author	Marage, P	en
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dc.contributor.author	Martyn, H-U	en
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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	Mikocki, S	en
dc.contributor.author	Milcewicz-Mika, I	en
dc.contributor.author	Milstead, D	en
dc.contributor.author	Mladenov, D	en
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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
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dc.date.accessioned	2014-03-01T01:55:26Z
dc.date.available	2014-03-01T01:55:26Z
dc.date.issued	2006	en
dc.identifier.issn	14346044	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27730
dc.title	Measurement of F2cc̄ and F2bb̄ at low Q2 and x using the HI vertex detector at HERA	en
heal.type	journalArticle	en
heal.identifier.primary	10.1140/epjc/s2005-02415-6	en
heal.identifier.secondary	http://dx.doi.org/10.1140/epjc/s2005-02415-6	en
heal.publicationDate	2006	en
heal.abstract	Measurements are presented of inclusive charm and beauty cross sections in e+p collisions at HERA for values of photon virtuality 12 ≤ Q2 ≤ 60 GeV2 and of the Bjorken scaling variable 0.0002 ≤ x ≤ 0.005. 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 vertex detector. Values for the structure functions F2cc̄ and F2bb̄ are obtained. This is the first measurement of F2bb̄ in this kinematic range. The results are found to be compatible with the predictions of perturbative quantum chromodynamics and with previous measurements of F2cc̄.	en
heal.journalName	European Physical Journal C	en
dc.identifier.doi	10.1140/epjc/s2005-02415-6	en
dc.identifier.volume	45	en
dc.identifier.issue	1	en
dc.identifier.spage	23	en
dc.identifier.epage	33	en