Measurement of F2cc̄ and F2 bb̄ at low Q2 and x using the HI vertex detector at HERA

A. Aktas; V. Andreev; T. Anthonis; S. Aplin; A. Asmone; A. Astvatsatourov; A. Babaev; S. Backovic; J. Bähr; A. Baghdasaryan; P. Baranov; E. Barrelet; W. Bartel; S. Baudrand; S. Baumgartner; J. Becker; M. Beckingham; O. Behnke; O. Behrendt; A. Belousov; C. Berger; N. Berger; J. C. Bizot; M. O. Boenig; V. Boudry; J. Bracinik; G. Brandt; V. Brisson; D. P. Brown; D. Bruncko; F. W. Büsser; A. Bunyatyan; G. Buschhorn; L. Bystritskaya; A. J. Campbell; S. Caron; F. Cassol-Brunner; K. Cerny; V. Cerny; V. Chekelian; J. G. Contreras; J. A. Coughlan; B. E. Cox; G. Cozzika; J. Cvach; J. B. Dainton; W. D. Dau; K. Daum; Y. de Boer; B. Delcourt; A. de Roeck; K. Desch; E. A. de Wolf; C. Diaconu; V. Dodonov; A. Dubak; G. Eckerlin; V. Efremenko; S. Egli; R. Eichler; F. Eisele; M. Ellerbrock; E. Elsen; W. Erdmann; S. Essenov; A. Falkewicz; P. J.W. Faulkner; L. Favart; A. Fedotov; R. Felst; J. Ferencei; L. Finke; M. Fleischer; P. Fleischmann; Y. H. Fleming; G. Flucke; A. Fomenko; I. Foresti; G. Franke; T. Frisson; E. Gabathuler; E. Garutti; J. Gayler; C. Gerlich; S. Ghazaryan; S. Ginzburgskaya; A. Glazov; I. Glushkov; L. Goerlich; M. Goettlich; N. Gogitidze; S. Gorbounov; C. Goyon; C. Grab; T. Greenshaw; M. Gregori; B. R. Grell; G. Grindhammer; C. Gwilliam; D. Haidt; L. Hajduk; M. Hansson; G. Heinzelmann; R. C.W. Henderson; H. Henschel; O. Henshaw; G. Herrera; M. Hildebrandt; K. H. Hiller; D. Hoffmann; R. Horisberger; A. Hovhannisyan; T. Hreus; S. Hussain; M. Ibbotson; M. Ismail; M. Jacquet; L. Janauschek; X. Janssen; V. Jemanov; L. Jönsson; D. P. Johnson; A. W. Jung; H. Jung; M. Kapichine; J. Katzy; N. Keller; I. R. Kenyon; C. Kiesling; M. Klein; C. Kleinwort; T. Klimkovich; T. Kluge; G. Knies; A. Knutsson; V. Korbel; P. Kostka; K. Krastev; J. Kretzschmar; A. Kropivnitskaya; K. Krüger; J. Kückens; M. P.J. Landon; W. Lange; T. Laštovička; G. Laštovička-Medin; P. Laycock; A. Lebedev; G. Leibenguth; V. Lendermann; S. Levonian; L. Lindfeld; K. Lipka; A. Liptaj; B. List; E. Lobodzinska; N. Loktionova; R. Lopez-Fernandez; V. Lubimov; A. I. Lucaci-Timoce; H. Lueders; D. Lüke; T. Lux; L. Lytkin; A. Makankine; N. Malden; E. Malinovski; S. Mangano; P. Marage; R. Marshall; M. Martisikova; H. U. Martyn; S. J. Maxfield; D. Meer; A. Mehta; K. Meier; A. B. Meyer; H. Meyer; J. Meyer; S. Mikocki; I. Milcewicz-Mika; D. Milstead; D. Mladenov; A. Mohamed; F. Moreau; A. Morozov; J. V. Morris; M. U. Mozer; K. Müller; P. Murín; K. Nankov; B. Naroska; T. Naumann; P. R. Newman; C. Niebuhr; A. Nikiforov; D. Nikitin; G. Nowak; M. Nozicka; R. Oganezov; B. Olivier; J. E. Olsson; S. Osman; D. Ozerov; V. Palichik; I. Panagoulias; T. Papadopoulou; C. Pascaud; G. D. Patel; M. Peez; E. Perez; D. Perez-Astudillo; A. Perieanu; A. Petrukhin; D. Pitzl; R. Plačakyte; B. Portheault; B. Povh; P. Prideaux; N. Raicevic; P. Reimer; A. Rimmer; C. Risler; E. Rizvi; P. Robmann; B. Roland; R. Roosen; A. Rostovtsev; Z. Rurikova; S. Rusakov; F. Salvaire; D. P.C. Sankey; E. Sauvan; S. Schätzel; F. P. Schilling; S. Schmidt; S. Schmitt; C. Schmitz; L. Schoeffel; A. Schöning; H. C. Schultz-Coulon; K. Sedlák; F. Sefkow; R. N. Shaw-West; I. Sheviakov; L. N. Shtarkov; T. Sloan; P. Smirnov; Y. Soloviev; D. South; V. Spaskov; A. Specka; B. Stella; J. Stiewe; I. Strauch; U. Straumann; V. Tchoulakov; G. Thompson; P. D. Thompson; F. Tomasz; D. Traynor; P. Truöl; I. Tsakov; G. Tsipolitis; I. Tsurin; J. Turnau; E. Tzamariudaki; M. Urban; A. Usik; D. Utkin; S. Valkár; A. Valkárová; C. Vallée; P. van Mechelen; A. Vargas Trevino; Y. Vazdik; C. Veelken; A. Vest; S. Vinokurova; V. Volchinski; B. Vujicic; K. Wacker; J. Wagner; G. Weber; R. Weber; D. Wegener; C. Werner; N. Werner; M. Wessels; B. Wessling; C. Wigmore; C. Wissing; R. Wolf; E. Wünsch; S. Xella; W. Yan; V. Yeganov; J. Žáček; J. Zálešák; Z. Zhang; A. Zhelezov; A. Zhokin; Y. C. Zhu; J. Zimmermann; T. Zimmermann; H. Zohrabyan; F. Zomer

doi:10.1140/epjc/s2005-02415-6

Measurement of F₂^cc̄ and F₂ ^bb̄ at low Q² and x using the HI vertex detector at HERA

A. Aktas^*, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, A. Astvatsatourov, A. Babaev, S. Backovic, J. Bähr, A. Baghdasaryan, P. Baranov, E. Barrelet, W. Bartel, S. Baudrand, S. Baumgartner, J. Becker, M. Beckingham, O. Behnke, O. Behrendt, A. BelousovC. Berger, N. Berger, J. C. Bizot, M. O. Boenig, V. Boudry, J. Bracinik, G. Brandt, V. Brisson, D. P. Brown, D. Bruncko, F. W. Büsser, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, S. Caron, F. Cassol-Brunner, K. Cerny, V. Cerny, V. Chekelian, J. G. Contreras, J. A. Coughlan, B. E. Cox, G. Cozzika, J. Cvach, J. B. Dainton, W. D. Dau, K. Daum, Y. de Boer, B. Delcourt, A. de Roeck, K. Desch, E. A. de Wolf, C. Diaconu, V. Dodonov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, M. Ellerbrock, E. Elsen, W. Erdmann, S. Essenov, A. Falkewicz, P. J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, L. Finke, M. Fleischer, P. Fleischmann, Y. H. Fleming, G. Flucke, A. Fomenko, I. Foresti, G. Franke, T. Frisson, E. Gabathuler, E. Garutti, J. Gayler, C. Gerlich, S. Ghazaryan, S. Ginzburgskaya, A. Glazov, I. Glushkov, L. Goerlich, M. Goettlich, N. Gogitidze, S. Gorbounov, C. Goyon, C. Grab, T. Greenshaw, M. Gregori, B. R. Grell, G. Grindhammer, C. Gwilliam, D. Haidt, L. Hajduk, M. Hansson, G. Heinzelmann, R. C.W. Henderson, H. Henschel, O. Henshaw, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, A. Hovhannisyan, T. Hreus, S. Hussain, M. Ibbotson, M. Ismail, M. Jacquet, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, D. P. Johnson, A. W. Jung, H. Jung, M. Kapichine, J. Katzy, N. Keller, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Klimkovich, T. Kluge, G. Knies, A. Knutsson, V. Korbel, P. Kostka, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krüger, J. Kückens, M. P.J. Landon, W. Lange, T. Laštovička, G. Laštovička-Medin, P. Laycock, A. Lebedev, G. Leibenguth, V. Lendermann, S. Levonian, L. Lindfeld, K. Lipka, A. Liptaj, B. List, E. Lobodzinska, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. I. Lucaci-Timoce, H. Lueders, D. Lüke, T. Lux, L. Lytkin, A. Makankine, N. Malden, E. Malinovski, S. Mangano, P. Marage, R. Marshall, M. Martisikova, H. U. Martyn, S. J. Maxfield, D. Meer, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, D. Milstead, D. Mladenov, A. Mohamed, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, K. Müller, P. Murín, K. Nankov, B. Naroska, T. Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, D. Nikitin, G. Nowak, M. Nozicka, R. Oganezov, B. Olivier, J. E. Olsson, S. Osman, D. Ozerov, V. Palichik, I. Panagoulias, T. Papadopoulou, C. Pascaud, G. D. Patel, M. Peez, E. Perez, D. Perez-Astudillo, A. Perieanu, A. Petrukhin, D. Pitzl, R. Plačakyte, B. Portheault, B. Povh, P. Prideaux, N. Raicevic, P. Reimer, A. Rimmer, C. Risler, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, Z. Rurikova, S. Rusakov, F. Salvaire, D. P.C. Sankey, E. Sauvan, S. Schätzel, F. P. Schilling, S. Schmidt, S. Schmitt, C. Schmitz, L. Schoeffel, A. Schöning, H. C. Schultz-Coulon, K. Sedlák, F. Sefkow, R. N. Shaw-West, I. Sheviakov, L. N. Shtarkov, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, B. Stella, J. Stiewe, I. Strauch, U. Straumann, V. Tchoulakov, G. Thompson, P. D. Thompson, F. Tomasz, D. Traynor, P. Truöl, I. Tsakov, G. Tsipolitis, I. Tsurin, J. Turnau, E. Tzamariudaki, M. Urban, A. Usik, D. Utkin, S. Valkár, A. Valkárová, C. Vallée, P. van Mechelen, A. Vargas Trevino, Y. Vazdik, C. Veelken, A. Vest, S. Vinokurova, V. Volchinski, B. Vujicic, K. Wacker, J. Wagner, G. Weber, R. Weber, D. Wegener, C. Werner, N. Werner, M. Wessels, B. Wessling, C. Wigmore, C. Wissing, R. Wolf, E. Wünsch, S. Xella, W. Yan, V. Yeganov, J. Žáček, J. Zálešák, Z. Zhang, A. Zhelezov, A. Zhokin, Y. C. Zhu, J. Zimmermann, T. Zimmermann, H. Zohrabyan, F. Zomer

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

138 Citations (Scopus)

Abstract

Measurements are presented of inclusive charm and beauty cross sections in e⁺p collisions at HERA for values of photon virtuality 12 ≤ Q ² ≤ 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 F₂^cc̄ and F ₂^bb̄ are obtained. This is the first measurement of F₂^bb̄ in this kinematic range. The results are found to be compatible with the predictions of perturbative quantum chromodynamics and with previous measurements of F₂^cc̄.

Original language	English
Pages (from-to)	23-33
Number of pages	11
Journal	European Physical Journal C
Volume	45
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s2005-02415-6
Publication status	Published - Jan 2006
Externally published	Yes

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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10.1140/epjc/s2005-02415-6

Cite this

Aktas, A., Andreev, V., Anthonis, T., Aplin, S., Asmone, A., Astvatsatourov, A., Babaev, A., Backovic, S., Bähr, J., Baghdasaryan, A., Baranov, P., Barrelet, E., Bartel, W., Baudrand, S., Baumgartner, S., Becker, J., Beckingham, M., Behnke, O., Behrendt, O., ... Zomer, F. (2006). Measurement of F₂^cc̄ and F₂ ^bb̄ at low Q² and x using the HI vertex detector at HERA. European Physical Journal C, 45(1), 23-33. https://doi.org/10.1140/epjc/s2005-02415-6

Aktas, A, Andreev, V, Anthonis, T, Aplin, S, Asmone, A, Astvatsatourov, A, Babaev, A, Backovic, S, Bähr, 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, MO, Boudry, V, Bracinik, J, Brandt, G, Brisson, V, Brown, DP, Bruncko, D, Büsser, 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, Jönsson, 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, Krüger, K, Kückens, J, Landon, MPJ, Lange, W, Laštovička, T, Laštovička-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, AI, Lueders, H, Lüke, D, Lux, T, Lytkin, L, Makankine, A, Malden, N, Malinovski, E, Mangano, S, Marage, P, Marshall, R, Martisikova, M, Martyn, HU, 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, Müller, K, Murín, 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, Plačakyte, 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, Schätzel, S, Schilling, FP, Schmidt, S, Schmitt, S, Schmitz, C, Schoeffel, L, Schöning, A, Schultz-Coulon, HC, Sedlák, 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, Truöl, P, Tsakov, I, Tsipolitis, G, Tsurin, I, Turnau, J, Tzamariudaki, E, Urban, M, Usik, A, Utkin, D, Valkár, S, Valkárová, A, Vallée, 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, Wünsch, E, Xella, S, Yan, W, Yeganov, V, Žáček, J, Zálešák, J, Zhang, Z, Zhelezov, A, Zhokin, A, Zhu, YC, Zimmermann, J, Zimmermann, T, Zohrabyan, H & Zomer, F 2006, 'Measurement of F₂^cc̄ and F₂ ^bb̄ at low Q² and x using the HI vertex detector at HERA', European Physical Journal C, vol. 45, no. 1, pp. 23-33. https://doi.org/10.1140/epjc/s2005-02415-6

@article{453e8106c06b485b81eb640ba856e34f,

title = "Measurement of F2c{\=c} and F2 b{\=b} at low Q2 and x using the HI vertex detector at HERA",

abstract = "Measurements are presented of inclusive charm and beauty cross sections in e+p collisions at HERA for values of photon virtuality 12 ≤ Q 2 ≤ 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 F2c{\=c} and F 2b{\=b} are obtained. This is the first measurement of F2b{\=b} in this kinematic range. The results are found to be compatible with the predictions of perturbative quantum chromodynamics and with previous measurements of F2c{\=c}.",

author = "A. Aktas and V. Andreev and T. Anthonis and S. Aplin and A. Asmone and A. Astvatsatourov and A. Babaev and S. Backovic and J. B{\"a}hr and A. Baghdasaryan and P. Baranov and E. Barrelet and W. Bartel and S. Baudrand and S. Baumgartner and J. Becker and M. Beckingham and O. Behnke and O. Behrendt and A. Belousov and C. Berger and N. Berger and Bizot, {J. C.} and Boenig, {M. O.} and V. Boudry and J. Bracinik and G. Brandt and V. Brisson and Brown, {D. P.} and D. Bruncko and B{\"u}sser, {F. W.} and A. Bunyatyan and G. Buschhorn and L. Bystritskaya and Campbell, {A. J.} and S. Caron and F. Cassol-Brunner and K. Cerny and V. Cerny and V. Chekelian and Contreras, {J. G.} and Coughlan, {J. A.} and Cox, {B. E.} and G. Cozzika and J. Cvach and Dainton, {J. B.} and Dau, {W. D.} and K. Daum and {de Boer}, Y. and B. Delcourt and {de Roeck}, A. and K. Desch and {de Wolf}, {E. A.} and C. Diaconu and V. Dodonov and A. Dubak and G. Eckerlin and V. Efremenko and S. Egli and R. Eichler and F. Eisele and M. Ellerbrock and E. Elsen and W. Erdmann and S. Essenov and A. Falkewicz and Faulkner, {P. J.W.} and L. Favart and A. Fedotov and R. Felst and J. Ferencei and L. Finke and M. Fleischer and P. Fleischmann and Fleming, {Y. H.} and G. Flucke and A. Fomenko and I. Foresti and G. Franke and T. Frisson and E. Gabathuler and E. Garutti and J. Gayler and C. Gerlich and S. Ghazaryan and S. Ginzburgskaya and A. Glazov and I. Glushkov and L. Goerlich and M. Goettlich and N. Gogitidze and S. Gorbounov and C. Goyon and C. Grab and T. Greenshaw and M. Gregori and Grell, {B. R.} and G. Grindhammer and C. Gwilliam and D. Haidt and L. Hajduk and M. Hansson and G. Heinzelmann and Henderson, {R. C.W.} and H. Henschel and O. Henshaw and G. Herrera and M. Hildebrandt and Hiller, {K. H.} and D. Hoffmann and R. Horisberger and A. Hovhannisyan and T. Hreus and S. Hussain and M. Ibbotson and M. Ismail and M. Jacquet and L. Janauschek and X. Janssen and V. Jemanov and L. J{\"o}nsson and Johnson, {D. P.} and Jung, {A. W.} and H. Jung and M. Kapichine and J. Katzy and N. Keller and Kenyon, {I. R.} and C. Kiesling and M. Klein and C. Kleinwort and T. Klimkovich and T. Kluge and G. Knies and A. Knutsson and V. Korbel and P. Kostka and K. Krastev and J. Kretzschmar and A. Kropivnitskaya and K. Kr{\"u}ger and J. K{\"u}ckens and Landon, {M. P.J.} and W. Lange and T. La{\v s}tovi{\v c}ka and G. La{\v s}tovi{\v c}ka-Medin and P. Laycock and A. Lebedev and G. Leibenguth and V. Lendermann and S. Levonian and L. Lindfeld and K. Lipka and A. Liptaj and B. List and E. Lobodzinska and N. Loktionova and R. Lopez-Fernandez and V. Lubimov and Lucaci-Timoce, {A. I.} and H. Lueders and D. L{\"u}ke and T. Lux and L. Lytkin and A. Makankine and N. Malden and E. Malinovski and S. Mangano and P. Marage and R. Marshall and M. Martisikova and Martyn, {H. U.} and Maxfield, {S. J.} and D. Meer and A. Mehta and K. Meier and Meyer, {A. B.} and H. Meyer and J. Meyer and S. Mikocki and I. Milcewicz-Mika and D. Milstead and D. Mladenov and A. Mohamed and F. Moreau and A. Morozov and Morris, {J. V.} and Mozer, {M. U.} and K. M{\"u}ller and P. Mur{\'i}n and K. Nankov and B. Naroska and T. Naumann and Newman, {P. R.} and C. Niebuhr and A. Nikiforov and D. Nikitin and G. Nowak and M. Nozicka and R. Oganezov and B. Olivier and Olsson, {J. E.} and S. Osman and D. Ozerov and V. Palichik and I. Panagoulias and T. Papadopoulou and C. Pascaud and Patel, {G. D.} and M. Peez and E. Perez and D. Perez-Astudillo and A. Perieanu and A. Petrukhin and D. Pitzl and R. Pla{\v c}akyte and B. Portheault and B. Povh and P. Prideaux and N. Raicevic and P. Reimer and A. Rimmer and C. Risler and E. Rizvi and P. Robmann and B. Roland and R. Roosen and A. Rostovtsev and Z. Rurikova and S. Rusakov and F. Salvaire and Sankey, {D. P.C.} and E. Sauvan and S. Sch{\"a}tzel and Schilling, {F. P.} and S. Schmidt and S. Schmitt and C. Schmitz and L. Schoeffel and A. Sch{\"o}ning and Schultz-Coulon, {H. C.} and K. Sedl{\'a}k and F. Sefkow and Shaw-West, {R. N.} and I. Sheviakov and Shtarkov, {L. N.} and T. Sloan and P. Smirnov and Y. Soloviev and D. South and V. Spaskov and A. Specka and B. Stella and J. Stiewe and I. Strauch and U. Straumann and V. Tchoulakov and G. Thompson and Thompson, {P. D.} and F. Tomasz and D. Traynor and P. Tru{\"o}l and I. Tsakov and G. Tsipolitis and I. Tsurin and J. Turnau and E. Tzamariudaki and M. Urban and A. Usik and D. Utkin and S. Valk{\'a}r and A. Valk{\'a}rov{\'a} and C. Vall{\'e}e and {van Mechelen}, P. and {Vargas Trevino}, A. and Y. Vazdik and C. Veelken and A. Vest and S. Vinokurova and V. Volchinski and B. Vujicic and K. Wacker and J. Wagner and G. Weber and R. Weber and D. Wegener and C. Werner and N. Werner and M. Wessels and B. Wessling and C. Wigmore and C. Wissing and R. Wolf and E. W{\"u}nsch and S. Xella and W. Yan and V. Yeganov and J. {\v Z}{\'a}{\v c}ek and J. Z{\'a}le{\v s}{\'a}k and Z. Zhang and A. Zhelezov and A. Zhokin and Zhu, {Y. C.} and J. Zimmermann and T. Zimmermann and H. Zohrabyan and F. Zomer",

year = "2006",

month = jan,

doi = "10.1140/epjc/s2005-02415-6",

language = "English",

volume = "45",

pages = "23--33",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Verlag",

number = "1",

}

TY - JOUR

T1 - Measurement of F2cc̄ and F2 bb̄ at low Q2 and x using the HI vertex detector at HERA

AU - Aktas, A.

AU - Andreev, V.

AU - Anthonis, T.

AU - Aplin, S.

AU - Asmone, A.

AU - Astvatsatourov, A.

AU - Babaev, A.

AU - Backovic, S.

AU - Bähr, J.

AU - Baghdasaryan, A.

AU - Baranov, P.

AU - Barrelet, E.

AU - Bartel, W.

AU - Baudrand, S.

AU - Baumgartner, S.

AU - Becker, J.

AU - Beckingham, M.

AU - Behnke, O.

AU - Behrendt, O.

AU - Belousov, A.

AU - Berger, C.

AU - Berger, N.

AU - Bizot, J. C.

AU - Boenig, M. O.

AU - Boudry, V.

AU - Bracinik, J.

AU - Brandt, G.

AU - Brisson, V.

AU - Brown, D. P.

AU - Bruncko, D.

AU - Büsser, F. W.

AU - Bunyatyan, A.

AU - Buschhorn, G.

AU - Bystritskaya, L.

AU - Campbell, A. J.

AU - Caron, S.

AU - Cassol-Brunner, F.

AU - Cerny, K.

AU - Cerny, V.

AU - Chekelian, V.

AU - Contreras, J. G.

AU - Coughlan, J. A.

AU - Cox, B. E.

AU - Cozzika, G.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Dau, W. D.

AU - Daum, K.

AU - de Boer, Y.

AU - Delcourt, B.

AU - de Roeck, A.

AU - Desch, K.

AU - de Wolf, E. A.

AU - Diaconu, C.

AU - Dodonov, V.

AU - Dubak, A.

AU - Eckerlin, G.

AU - Efremenko, V.

AU - Egli, S.

AU - Eichler, R.

AU - Eisele, F.

AU - Ellerbrock, M.

AU - Elsen, E.

AU - Erdmann, W.

AU - Essenov, S.

AU - Falkewicz, A.

AU - Faulkner, P. J.W.

AU - Favart, L.

AU - Fedotov, A.

AU - Felst, R.

AU - Ferencei, J.

AU - Finke, L.

AU - Fleischer, M.

AU - Fleischmann, P.

AU - Fleming, Y. H.

AU - Flucke, G.

AU - Fomenko, A.

AU - Foresti, I.

AU - Franke, G.

AU - Frisson, T.

AU - Gabathuler, E.

AU - Garutti, E.

AU - Gayler, J.

AU - Gerlich, C.

AU - Ghazaryan, S.

AU - Ginzburgskaya, S.

AU - Glazov, A.

AU - Glushkov, I.

AU - Goerlich, L.

AU - Goettlich, M.

AU - Gogitidze, N.

AU - Gorbounov, S.

AU - Goyon, C.

AU - Grab, C.

AU - Greenshaw, T.

AU - Gregori, M.

AU - Grell, B. R.

AU - Grindhammer, G.

AU - Gwilliam, C.

AU - Haidt, D.

AU - Hajduk, L.

AU - Hansson, M.

AU - Heinzelmann, G.

AU - Henderson, R. C.W.

AU - Henschel, H.

AU - Henshaw, O.

AU - Herrera, G.

AU - Hildebrandt, M.

AU - Hiller, K. H.

AU - Hoffmann, D.

AU - Horisberger, R.

AU - Hovhannisyan, A.

AU - Hreus, T.

AU - Hussain, S.

AU - Ibbotson, M.

AU - Ismail, M.

AU - Jacquet, M.

AU - Janauschek, L.

AU - Janssen, X.

AU - Jemanov, V.

AU - Jönsson, L.

AU - Johnson, D. P.

AU - Jung, A. W.

AU - Jung, H.

AU - Kapichine, M.

AU - Katzy, J.

AU - Keller, N.

AU - Kenyon, I. R.

AU - Kiesling, C.

AU - Klein, M.

AU - Kleinwort, C.

AU - Klimkovich, T.

AU - Kluge, T.

AU - Knies, G.

AU - Knutsson, A.

AU - Korbel, V.

AU - Kostka, P.

AU - Krastev, K.

AU - Kretzschmar, J.

AU - Kropivnitskaya, A.

AU - Krüger, K.

AU - Kückens, J.

AU - Landon, M. P.J.

AU - Lange, W.

AU - Laštovička, T.

AU - Laštovička-Medin, G.

AU - Laycock, P.

AU - Lebedev, A.

AU - Leibenguth, G.

AU - Lendermann, V.

AU - Levonian, S.

AU - Lindfeld, L.

AU - Lipka, K.

AU - Liptaj, A.

AU - List, B.

AU - Lobodzinska, E.

AU - Loktionova, N.

AU - Lopez-Fernandez, R.

AU - Lubimov, V.

AU - Lucaci-Timoce, A. I.

AU - Lueders, H.

AU - Lüke, D.

AU - Lux, T.

AU - Lytkin, L.

AU - Makankine, A.

AU - Malden, N.

AU - Malinovski, E.

AU - Mangano, S.

AU - Marage, P.

AU - Marshall, R.

AU - Martisikova, M.

AU - Martyn, H. U.

AU - Maxfield, S. J.

AU - Meer, D.

AU - Mehta, A.

AU - Meier, K.

AU - Meyer, A. B.

AU - Meyer, H.

AU - Meyer, J.

AU - Mikocki, S.

AU - Milcewicz-Mika, I.

AU - Milstead, D.

AU - Mladenov, D.

AU - Mohamed, A.

AU - Moreau, F.

AU - Morozov, A.

AU - Morris, J. V.

AU - Mozer, M. U.

AU - Müller, K.

AU - Murín, P.

AU - Nankov, K.

AU - Naroska, B.

AU - Naumann, T.

AU - Newman, P. R.

AU - Niebuhr, C.

AU - Nikiforov, A.

AU - Nikitin, D.

AU - Nowak, G.

AU - Nozicka, M.

AU - Oganezov, R.

AU - Olivier, B.

AU - Olsson, J. E.

AU - Osman, S.

AU - Ozerov, D.

AU - Palichik, V.

AU - Panagoulias, I.

AU - Papadopoulou, T.

AU - Pascaud, C.

AU - Patel, G. D.

AU - Peez, M.

AU - Perez, E.

AU - Perez-Astudillo, D.

AU - Perieanu, A.

AU - Petrukhin, A.

AU - Pitzl, D.

AU - Plačakyte, R.

AU - Portheault, B.

AU - Povh, B.

AU - Prideaux, P.

AU - Raicevic, N.

AU - Reimer, P.

AU - Rimmer, A.

AU - Risler, C.

AU - Rizvi, E.

AU - Robmann, P.

AU - Roland, B.

AU - Roosen, R.

AU - Rostovtsev, A.

AU - Rurikova, Z.

AU - Rusakov, S.

AU - Salvaire, F.

AU - Sankey, D. P.C.

AU - Sauvan, E.

AU - Schätzel, S.

AU - Schilling, F. P.

AU - Schmidt, S.

AU - Schmitt, S.

AU - Schmitz, C.

AU - Schoeffel, L.

AU - Schöning, A.

AU - Schultz-Coulon, H. C.

AU - Sedlák, K.

AU - Sefkow, F.

AU - Shaw-West, R. N.

AU - Sheviakov, I.

AU - Shtarkov, L. N.

AU - Sloan, T.

AU - Smirnov, P.

AU - Soloviev, Y.

AU - South, D.

AU - Spaskov, V.

AU - Specka, A.

AU - Stella, B.

AU - Stiewe, J.

AU - Strauch, I.

AU - Straumann, U.

AU - Tchoulakov, V.

AU - Thompson, G.

AU - Thompson, P. D.

AU - Tomasz, F.

AU - Traynor, D.

AU - Truöl, P.

AU - Tsakov, I.

AU - Tsipolitis, G.

AU - Tsurin, I.

AU - Turnau, J.

AU - Tzamariudaki, E.

AU - Urban, M.

AU - Usik, A.

AU - Utkin, D.

AU - Valkár, S.

AU - Valkárová, A.

AU - Vallée, C.

AU - van Mechelen, P.

AU - Vargas Trevino, A.

AU - Vazdik, Y.

AU - Veelken, C.

AU - Vest, A.

AU - Vinokurova, S.

AU - Volchinski, V.

AU - Vujicic, B.

AU - Wacker, K.

AU - Wagner, J.

AU - Weber, G.

AU - Weber, R.

AU - Wegener, D.

AU - Werner, C.

AU - Werner, N.

AU - Wessels, M.

AU - Wessling, B.

AU - Wigmore, C.

AU - Wissing, C.

AU - Wolf, R.

AU - Wünsch, E.

AU - Xella, S.

AU - Yan, W.

AU - Yeganov, V.

AU - Žáček, J.

AU - Zálešák, J.

AU - Zhang, Z.

AU - Zhelezov, A.

AU - Zhokin, A.

AU - Zhu, Y. C.

AU - Zimmermann, J.

AU - Zimmermann, T.

AU - Zohrabyan, H.

AU - Zomer, F.

PY - 2006/1

Y1 - 2006/1

N2 - Measurements are presented of inclusive charm and beauty cross sections in e+p collisions at HERA for values of photon virtuality 12 ≤ Q 2 ≤ 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 F 2bb̄ 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.

AB - Measurements are presented of inclusive charm and beauty cross sections in e+p collisions at HERA for values of photon virtuality 12 ≤ Q 2 ≤ 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 F 2bb̄ 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.

UR - http://www.scopus.com/inward/record.url?scp=28744449493&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28744449493&partnerID=8YFLogxK

U2 - 10.1140/epjc/s2005-02415-6

DO - 10.1140/epjc/s2005-02415-6

M3 - Article

AN - SCOPUS:28744449493

SN - 1434-6044

VL - 45

SP - 23

EP - 33

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

ER -

Measurement of F₂^cc̄ and F₂ ^bb̄ at low Q² and x using the HI vertex detector at HERA

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