Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA

F. D. Aaron; C. Alexa; V. Andreev; S. Backovic; A. Baghdasaryan; S. Baghdasaryan; E. Barrelet; W. Bartel; K. Begzsuren; A. Belousov; P. Belov; J. C. Bizot; V. Boudry; I. Bozovic-Jelisavcic; J. Bracinik; G. Brandt; M. Brinkmann; V. Brisson; D. Britzger; D. Bruncko; A. Bunyatyan; A. Bylinkin; L. Bystritskaya; A. J. Campbell; K. B. Cantun Avila; F. Ceccopieri; K. Cerny; V. Cerny; V. Chekelian; J. G. Contreras; J. A. Coughlan; J. Cvach; J. B. Dainton; K. Daum; B. Delcourt; J. Delvax; E. A. de Wolf; C. Diaconu; M. Dobre; V. Dodonov; A. Dossanov; A. Dubak; G. Eckerlin; S. Egli; A. Eliseev; E. Elsen; L. Favart; A. Fedotov; R. Felst; J. Feltesse; J. Ferencei; D. J. Fischer; M. Fleischer; A. Fomenko; E. Gabathuler; J. Gayler; S. Ghazaryan; A. Glazov; L. Goerlich; N. Gogitidze; M. Gouzevitch; C. Grab; A. Grebenyuk; T. Greenshaw; G. Grindhammer; S. Habib; D. Haidt; R. C.W. Henderson; E. Hennekemper; H. Henschel; M. Herbst; G. Herrera; M. Hildebrandt; K. H. Hiller; D. Hoffmann; R. Horisberger; T. Hreus; F. Huber; M. Jacquet; X. Janssen; L. Jönsson; H. Jung; M. Kapichine; I. R. Kenyon; C. Kiesling; M. Klein; C. Kleinwort; T. Kluge; R. Kogler; P. Kostka; M. Krämer; J. Kretzschmar; K. Krüger; M. P.J. Landon; W. Lange; G. Laštovička-Medin; P. Laycock; A. Lebedev; V. Lendermann; S. Levonian; K. Lipka; B. List; J. List; B. Lobodzinski; R. Lopez-Fernandez; V. Lubimov; E. Malinovski; H. U. Martyn; S. J. Maxfield; A. Mehta; A. B. Meyer; H. Meyer; J. Meyer; S. Mikocki; I. Milcewicz-Mika; F. Moreau; A. Morozov; J. V. Morris; K. Müller; Th Naumann; P. R. Newman; C. Niebuhr; D. Nikitin; G. Nowak; K. Nowak; J. E. Olsson; D. Ozerov; P. Pahl; V. Palichik; I. Panagoulias; M. Pandurovic; Th Papadopoulou; C. Pascaud; G. D. Patel; E. Perez; A. Petrukhin; I. Picuric; H. Pirumov; D. Pitzl; R. Plačakyte; B. Pokorny; R. Polifka; B. Povh; V. Radescu; N. Raicevic; T. Ravdandorj; P. Reimer; E. Rizvi; P. Robmann; R. Roosen; A. Rostovtsev; M. Rotaru; J. E. Ruiz Tabasco; S. Rusakov; D. Šálek; D. P.C. Sankey; M. Sauter; E. Sauvan; S. Schmitt; L. Schoeffel; A. Schöning; H. C. Schultz-Coulon; F. Sefkow; L. N. Shtarkov; S. Shushkevich; T. Sloan; Y. Soloviev; P. Sopicki; D. South; V. Spaskov; A. Specka; Z. Staykova; M. Steder; B. Stella; G. Stoicea; U. Straumann; T. Sykora; P. D. Thompson; T. H. Tran; D. Traynor; P. Truöl; I. Tsakov; B. Tseepeldorj; J. Turnau; A. Valkárová; C. Vallée; P. Van Mechelen; Y. Vazdik; D. Wegener; E. Wünsch; J. Žáček; J. Zálešák; Z. Zhang; A. Zhokin; R. Žlebčík; H. Zohrabyan; F. Zomer

doi:10.1140/epjc/s10052-012-2047-5

Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA

F. D. Aaron
, C. Alexa
, V. Andreev
, S. Backovic
, A. Baghdasaryan
, S. Baghdasaryan
, E. Barrelet
, W. Bartel
, K. Begzsuren
, A. Belousov
, P. Belov
, J. C. Bizot
, V. Boudry
, I. Bozovic-Jelisavcic
, J. Bracinik
, G. Brandt
, M. Brinkmann
, V. Brisson
, D. Britzger
, D. Bruncko

A. Bunyatyan, A. Bylinkin, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Ceccopieri, K. Cerny, V. Cerny, V. Chekelian, J. G. Contreras, J. A. Coughlan, J. Cvach, J. B. Dainton, K. Daum, B. Delcourt, J. Delvax, E. A. de Wolf, C. Diaconu, M. Dobre, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, S. Egli, A. Eliseev, E. Elsen, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, D. J. Fischer, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, G. Grindhammer, S. Habib, D. Haidt, R. C.W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, M. Jacquet, X. Janssen, L. Jönsson, H. Jung, M. Kapichine, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, R. Kogler, P. Kostka, M. Krämer, J. Kretzschmar, K. Krüger, M. P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, V. Lendermann, S. Levonian, K. Lipka, B. List, J. List, B. Lobodzinski, R. Lopez-Fernandez, V. Lubimov, E. Malinovski, H. U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J. V. Morris, K. Müller, Th Naumann, P. R. Newman, C. Niebuhr, D. Nikitin, G. Nowak, K. Nowak, J. E. Olsson, D. Ozerov, P. Pahl, V. Palichik, I. Panagoulias, M. Pandurovic, Th Papadopoulou, C. Pascaud, G. D. Patel, E. Perez, A. Petrukhin, I. Picuric, H. Pirumov, D. Pitzl, R. Plačakyte, B. Pokorny, R. Polifka, B. Povh, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, J. E. Ruiz Tabasco, S. Rusakov, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, H. C. Schultz-Coulon, F. Sefkow, L. N. Shtarkov, S. Shushkevich, T. Sloan, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, G. Stoicea, U. Straumann, T. Sykora, P. D. Thompson, T. H. Tran, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, J. Turnau, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, D. Wegener, E. Wünsch, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, R. Žlebčík, H. Zohrabyan, F. Zomer

Horia Hulubei National Institute of Physics and Nuclear Engineering
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Montenegro
Yerevan Physics Institute
Universités Paris VI and VII
c/o DESY
Institute of Physics and Technology of the Mongolian Academy of Sciences
Laboratoire de l'Accélérateur Linéaire
University of Belgrade
University of Birmingham
Institute of Experimental Physics Slovak Academy of Sciences
Max-Planck-Institut für Kernphysik
Institute for Theoretical and Experimental Physics
Dept. Fis. Ap. CINVESTAV
Inter-University Institute for High Energies ULB-VUB
Charles University
Max-Planck-Institut für Physik
CCLRC Rutherford Appleton Laboratory
Institute of Physics of the Czech Academy of Sciences
University of Liverpool
Bergische Universität Gesamthochschule Wuppertal
Aix-Marseille Université
Universität Hamburg
Paul Scherrer Institut
CEA/UVSQ/CNRS
Institute for Nuclear Physics
ETH Zurich
Lancaster University
University of Heidelberg
CINVESTAV-IPN
Lund University
Joint Institute for Nuclear Research, Dubna
Queen Mary University of London
RWTH Aachen University
Physik-Institut der Universität Zürich
University Roma Tre
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Dortmund

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

9 Citations (Scopus)

Abstract

Measurements of cross sections for beauty and charm events with dijets and a muon in the photoproduction regime at HERA are presented. The data were collected with the H1 detector and correspond to an integrated luminosity of 179 pb^-1. Events with dijets of transverse momentum P_T^jet1 > 7 GeV and P_T^jet2 > 6 GeV in the pseudorapidity range -1.5 < η^jet < 2.5 in the laboratory frame are selected in the kinematic region of photon virtuality Q² < 2.5 GeV² and inelasticity 0.2 < y < 0.8. One of the two selected jets must be associated to a muon with P_T^μ > 2.5 GeV in the pseudorapidity range -1.3 < η ^μ < 1.5. The fractions of beauty and charm events are determined using the impact parameters of the muon tracks with respect to the primary vertex and their transverse momentum relative to the axis of the associated jet. Both variables are reconstructed using the H1 vertex detector. The measurements are in agreement with QCD predictions at leading and next-to-leading order.

Original language	English
Article number	2047
Pages (from-to)	1-19
Number of pages	19
Journal	European Physical Journal C
Volume	72
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-012-2047-5
Publication status	Published - 1 Jan 2012

Access to Document

10.1140/epjc/s10052-012-2047-5

Cite this

Aaron, F. D., Alexa, C., Andreev, V., Backovic, S., Baghdasaryan, A., Baghdasaryan, S., Barrelet, E., Bartel, W., Begzsuren, K., Belousov, A., Belov, P., Bizot, J. C., Boudry, V., Bozovic-Jelisavcic, I., Bracinik, J., Brandt, G., Brinkmann, M., Brisson, V., Britzger, D., ... Zomer, F. (2012). Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA. European Physical Journal C, 72(6), 1-19. Article 2047. https://doi.org/10.1140/epjc/s10052-012-2047-5

@article{a6c334325f3f43e48328cf12933bb3be,

title = "Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA",

abstract = "Measurements of cross sections for beauty and charm events with dijets and a muon in the photoproduction regime at HERA are presented. The data were collected with the H1 detector and correspond to an integrated luminosity of 179 pb-1. Events with dijets of transverse momentum PTjet1 > 7 GeV and PTjet2 > 6 GeV in the pseudorapidity range -1.5 < ηjet < 2.5 in the laboratory frame are selected in the kinematic region of photon virtuality Q2 < 2.5 GeV2 and inelasticity 0.2 < y < 0.8. One of the two selected jets must be associated to a muon with PTμ > 2.5 GeV in the pseudorapidity range -1.3 < η μ < 1.5. The fractions of beauty and charm events are determined using the impact parameters of the muon tracks with respect to the primary vertex and their transverse momentum relative to the axis of the associated jet. Both variables are reconstructed using the H1 vertex detector. The measurements are in agreement with QCD predictions at leading and next-to-leading order.",

author = "Aaron, \{F. D.\} and C. Alexa and V. Andreev and S. Backovic and A. Baghdasaryan and S. Baghdasaryan and E. Barrelet and W. Bartel and K. Begzsuren and A. Belousov and P. Belov and Bizot, \{J. C.\} and V. Boudry and I. Bozovic-Jelisavcic and J. Bracinik and G. Brandt and M. Brinkmann and V. Brisson and D. Britzger and D. Bruncko and A. Bunyatyan and A. Bylinkin and L. Bystritskaya and Campbell, \{A. J.\} and \{Cantun Avila\}, \{K. B.\} and F. Ceccopieri and K. Cerny and V. Cerny and V. Chekelian and Contreras, \{J. G.\} and Coughlan, \{J. A.\} and J. Cvach and Dainton, \{J. B.\} and K. Daum and B. Delcourt and J. Delvax and \{de Wolf\}, \{E. A.\} and C. Diaconu and M. Dobre and V. Dodonov and A. Dossanov and A. Dubak and G. Eckerlin and S. Egli and A. Eliseev and E. Elsen and L. Favart and A. Fedotov and R. Felst and J. Feltesse and J. Ferencei and Fischer, \{D. J.\} and M. Fleischer and A. Fomenko and E. Gabathuler and J. Gayler and S. Ghazaryan and A. Glazov and L. Goerlich and N. Gogitidze and M. Gouzevitch and C. Grab and A. Grebenyuk and T. Greenshaw and G. Grindhammer and S. Habib and D. Haidt and Henderson, \{R. C.W.\} and E. Hennekemper and H. Henschel and M. Herbst and G. Herrera and M. Hildebrandt and Hiller, \{K. H.\} and D. Hoffmann and R. Horisberger and T. Hreus and F. Huber and M. Jacquet and X. Janssen and L. J{\"o}nsson and H. Jung and M. Kapichine and Kenyon, \{I. R.\} and C. Kiesling and M. Klein and C. Kleinwort and T. Kluge and R. Kogler and P. Kostka and M. Kr{\"a}mer and J. Kretzschmar and K. Kr{\"u}ger and Landon, \{M. P.J.\} and W. Lange and G. La{\v s}tovi{\v c}ka-Medin and P. Laycock and A. Lebedev and V. Lendermann and S. Levonian and K. Lipka and B. List and J. List and B. Lobodzinski and R. Lopez-Fernandez and V. Lubimov and E. Malinovski and Martyn, \{H. U.\} and Maxfield, \{S. J.\} and A. Mehta and Meyer, \{A. B.\} and H. Meyer and J. Meyer and S. Mikocki and I. Milcewicz-Mika and F. Moreau and A. Morozov and Morris, \{J. V.\} and K. M{\"u}ller and Th Naumann and Newman, \{P. R.\} and C. Niebuhr and D. Nikitin and G. Nowak and K. Nowak and Olsson, \{J. E.\} and D. Ozerov and P. Pahl and V. Palichik and I. Panagoulias and M. Pandurovic and Th Papadopoulou and C. Pascaud and Patel, \{G. D.\} and E. Perez and A. Petrukhin and I. Picuric and H. Pirumov and D. Pitzl and R. Pla{\v c}akyte and B. Pokorny and R. Polifka and B. Povh and V. Radescu and N. Raicevic and T. Ravdandorj and P. Reimer and E. Rizvi and P. Robmann and R. Roosen and A. Rostovtsev and M. Rotaru and \{Ruiz Tabasco\}, \{J. E.\} and S. Rusakov and D. {\v S}{\'a}lek and Sankey, \{D. P.C.\} and M. Sauter and E. Sauvan and S. Schmitt and L. Schoeffel and A. Sch{\"o}ning and Schultz-Coulon, \{H. C.\} and F. Sefkow and Shtarkov, \{L. N.\} and S. Shushkevich and T. Sloan and Y. Soloviev and P. Sopicki and D. South and V. Spaskov and A. Specka and Z. Staykova and M. Steder and B. Stella and G. Stoicea and U. Straumann and T. Sykora and Thompson, \{P. D.\} and Tran, \{T. H.\} and D. Traynor and P. Tru{\"o}l and I. Tsakov and B. Tseepeldorj and J. Turnau and A. Valk{\'a}rov{\'a} and C. Vall{\'e}e and \{Van Mechelen\}, P. and Y. Vazdik and D. Wegener and E. W{\"u}nsch and J. {\v Z}{\'a}{\v c}ek and J. Z{\'a}le{\v s}{\'a}k and Z. Zhang and A. Zhokin and R. {\v Z}leb{\v c}{\'i}k and H. Zohrabyan and F. Zomer",

year = "2012",

month = jan,

day = "1",

doi = "10.1140/epjc/s10052-012-2047-5",

language = "English",

volume = "72",

pages = "1--19",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "6",

}

Aaron, FD, Alexa, C, Andreev, V, Backovic, S, Baghdasaryan, A, Baghdasaryan, S, Barrelet, E, Bartel, W, Begzsuren, K, Belousov, A, Belov, P, Bizot, JC, Boudry, V, Bozovic-Jelisavcic, I, Bracinik, J, Brandt, G, Brinkmann, M, Brisson, V, Britzger, D, Bruncko, D, Bunyatyan, A, Bylinkin, A, Bystritskaya, L, Campbell, AJ, Cantun Avila, KB, Ceccopieri, F, Cerny, K, Cerny, V, Chekelian, V, Contreras, JG, Coughlan, JA, Cvach, J, Dainton, JB, Daum, K, Delcourt, B, Delvax, J, de Wolf, EA, Diaconu, C, Dobre, M, Dodonov, V, Dossanov, A, Dubak, A, Eckerlin, G, Egli, S, Eliseev, A, Elsen, E, Favart, L, Fedotov, A, Felst, R, Feltesse, J, Ferencei, J, Fischer, DJ, Fleischer, M, Fomenko, A, Gabathuler, E, Gayler, J, Ghazaryan, S, Glazov, A, Goerlich, L, Gogitidze, N, Gouzevitch, M, Grab, C, Grebenyuk, A, Greenshaw, T, Grindhammer, G, Habib, S, Haidt, D, Henderson, RCW, Hennekemper, E, Henschel, H, Herbst, M, Herrera, G, Hildebrandt, M, Hiller, KH, Hoffmann, D, Horisberger, R, Hreus, T, Huber, F, Jacquet, M, Janssen, X, Jönsson, L, Jung, H, Kapichine, M, Kenyon, IR, Kiesling, C, Klein, M, Kleinwort, C, Kluge, T, Kogler, R, Kostka, P, Krämer, M, Kretzschmar, J, Krüger, K, Landon, MPJ, Lange, W, Laštovička-Medin, G, Laycock, P, Lebedev, A, Lendermann, V, Levonian, S, Lipka, K, List, B, List, J, Lobodzinski, B, Lopez-Fernandez, R, Lubimov, V, Malinovski, E, Martyn, HU, Maxfield, SJ, Mehta, A, Meyer, AB, Meyer, H, Meyer, J, Mikocki, S, Milcewicz-Mika, I, Moreau, F, Morozov, A, Morris, JV, Müller, K, Naumann, T, Newman, PR, Niebuhr, C, Nikitin, D, Nowak, G, Nowak, K, Olsson, JE, Ozerov, D, Pahl, P, Palichik, V, Panagoulias, I, Pandurovic, M, Papadopoulou, T, Pascaud, C, Patel, GD, Perez, E, Petrukhin, A, Picuric, I, Pirumov, H, Pitzl, D, Plačakyte, R, Pokorny, B, Polifka, R, Povh, B, Radescu, V, Raicevic, N, Ravdandorj, T, Reimer, P, Rizvi, E, Robmann, P, Roosen, R, Rostovtsev, A, Rotaru, M, Ruiz Tabasco, JE, Rusakov, S, Šálek, D, Sankey, DPC, Sauter, M, Sauvan, E, Schmitt, S, Schoeffel, L, Schöning, A, Schultz-Coulon, HC, Sefkow, F, Shtarkov, LN, Shushkevich, S, Sloan, T, Soloviev, Y, Sopicki, P, South, D, Spaskov, V, Specka, A, Staykova, Z, Steder, M, Stella, B, Stoicea, G, Straumann, U, Sykora, T, Thompson, PD, Tran, TH, Traynor, D, Truöl, P, Tsakov, I, Tseepeldorj, B, Turnau, J, Valkárová, A, Vallée, C, Van Mechelen, P, Vazdik, Y, Wegener, D, Wünsch, E, Žáček, J, Zálešák, J, Zhang, Z, Zhokin, A, Žlebčík, R, Zohrabyan, H & Zomer, F 2012, 'Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA', European Physical Journal C, vol. 72, no. 6, 2047, pp. 1-19. https://doi.org/10.1140/epjc/s10052-012-2047-5

TY - JOUR

T1 - Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA

AU - Aaron, F. D.

AU - Alexa, C.

AU - Andreev, V.

AU - Backovic, S.

AU - Baghdasaryan, A.

AU - Baghdasaryan, S.

AU - Barrelet, E.

AU - Bartel, W.

AU - Begzsuren, K.

AU - Belousov, A.

AU - Belov, P.

AU - Bizot, J. C.

AU - Boudry, V.

AU - Bozovic-Jelisavcic, I.

AU - Bracinik, J.

AU - Brandt, G.

AU - Brinkmann, M.

AU - Brisson, V.

AU - Britzger, D.

AU - Bruncko, D.

AU - Bunyatyan, A.

AU - Bylinkin, A.

AU - Bystritskaya, L.

AU - Campbell, A. J.

AU - Cantun Avila, K. B.

AU - Ceccopieri, F.

AU - Cerny, K.

AU - Cerny, V.

AU - Chekelian, V.

AU - Contreras, J. G.

AU - Coughlan, J. A.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Daum, K.

AU - Delcourt, B.

AU - Delvax, J.

AU - de Wolf, E. A.

AU - Diaconu, C.

AU - Dobre, M.

AU - Dodonov, V.

AU - Dossanov, A.

AU - Dubak, A.

AU - Eckerlin, G.

AU - Egli, S.

AU - Eliseev, A.

AU - Elsen, E.

AU - Favart, L.

AU - Fedotov, A.

AU - Felst, R.

AU - Feltesse, J.

AU - Ferencei, J.

AU - Fischer, D. J.

AU - Fleischer, M.

AU - Fomenko, A.

AU - Gabathuler, E.

AU - Gayler, J.

AU - Ghazaryan, S.

AU - Glazov, A.

AU - Goerlich, L.

AU - Gogitidze, N.

AU - Gouzevitch, M.

AU - Grab, C.

AU - Grebenyuk, A.

AU - Greenshaw, T.

AU - Grindhammer, G.

AU - Habib, S.

AU - Haidt, D.

AU - Henderson, R. C.W.

AU - Hennekemper, E.

AU - Henschel, H.

AU - Herbst, M.

AU - Herrera, G.

AU - Hildebrandt, M.

AU - Hiller, K. H.

AU - Hoffmann, D.

AU - Horisberger, R.

AU - Hreus, T.

AU - Huber, F.

AU - Jacquet, M.

AU - Janssen, X.

AU - Jönsson, L.

AU - Jung, H.

AU - Kapichine, M.

AU - Kenyon, I. R.

AU - Kiesling, C.

AU - Klein, M.

AU - Kleinwort, C.

AU - Kluge, T.

AU - Kogler, R.

AU - Kostka, P.

AU - Krämer, M.

AU - Kretzschmar, J.

AU - Krüger, K.

AU - Landon, M. P.J.

AU - Lange, W.

AU - Laštovička-Medin, G.

AU - Laycock, P.

AU - Lebedev, A.

AU - Lendermann, V.

AU - Levonian, S.

AU - Lipka, K.

AU - List, B.

AU - List, J.

AU - Lobodzinski, B.

AU - Lopez-Fernandez, R.

AU - Lubimov, V.

AU - Malinovski, E.

AU - Martyn, H. U.

AU - Maxfield, S. J.

AU - Mehta, A.

AU - Meyer, A. B.

AU - Meyer, H.

AU - Meyer, J.

AU - Mikocki, S.

AU - Milcewicz-Mika, I.

AU - Moreau, F.

AU - Morozov, A.

AU - Morris, J. V.

AU - Müller, K.

AU - Naumann, Th

AU - Newman, P. R.

AU - Niebuhr, C.

AU - Nikitin, D.

AU - Nowak, G.

AU - Nowak, K.

AU - Olsson, J. E.

AU - Ozerov, D.

AU - Pahl, P.

AU - Palichik, V.

AU - Panagoulias, I.

AU - Pandurovic, M.

AU - Papadopoulou, Th

AU - Pascaud, C.

AU - Patel, G. D.

AU - Perez, E.

AU - Petrukhin, A.

AU - Picuric, I.

AU - Pirumov, H.

AU - Pitzl, D.

AU - Plačakyte, R.

AU - Pokorny, B.

AU - Polifka, R.

AU - Povh, B.

AU - Radescu, V.

AU - Raicevic, N.

AU - Ravdandorj, T.

AU - Reimer, P.

AU - Rizvi, E.

AU - Robmann, P.

AU - Roosen, R.

AU - Rostovtsev, A.

AU - Rotaru, M.

AU - Ruiz Tabasco, J. E.

AU - Rusakov, S.

AU - Šálek, D.

AU - Sankey, D. P.C.

AU - Sauter, M.

AU - Sauvan, E.

AU - Schmitt, S.

AU - Schoeffel, L.

AU - Schöning, A.

AU - Schultz-Coulon, H. C.

AU - Sefkow, F.

AU - Shtarkov, L. N.

AU - Shushkevich, S.

AU - Sloan, T.

AU - Soloviev, Y.

AU - Sopicki, P.

AU - South, D.

AU - Spaskov, V.

AU - Specka, A.

AU - Staykova, Z.

AU - Steder, M.

AU - Stella, B.

AU - Stoicea, G.

AU - Straumann, U.

AU - Sykora, T.

AU - Thompson, P. D.

AU - Tran, T. H.

AU - Traynor, D.

AU - Truöl, P.

AU - Tsakov, I.

AU - Tseepeldorj, B.

AU - Turnau, J.

AU - Valkárová, A.

AU - Vallée, C.

AU - Van Mechelen, P.

AU - Vazdik, Y.

AU - Wegener, D.

AU - Wünsch, E.

AU - Žáček, J.

AU - Zálešák, J.

AU - Zhang, Z.

AU - Zhokin, A.

AU - Žlebčík, R.

AU - Zohrabyan, H.

AU - Zomer, F.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Measurements of cross sections for beauty and charm events with dijets and a muon in the photoproduction regime at HERA are presented. The data were collected with the H1 detector and correspond to an integrated luminosity of 179 pb-1. Events with dijets of transverse momentum PTjet1 > 7 GeV and PTjet2 > 6 GeV in the pseudorapidity range -1.5 < ηjet < 2.5 in the laboratory frame are selected in the kinematic region of photon virtuality Q2 < 2.5 GeV2 and inelasticity 0.2 < y < 0.8. One of the two selected jets must be associated to a muon with PTμ > 2.5 GeV in the pseudorapidity range -1.3 < η μ < 1.5. The fractions of beauty and charm events are determined using the impact parameters of the muon tracks with respect to the primary vertex and their transverse momentum relative to the axis of the associated jet. Both variables are reconstructed using the H1 vertex detector. The measurements are in agreement with QCD predictions at leading and next-to-leading order.

AB - Measurements of cross sections for beauty and charm events with dijets and a muon in the photoproduction regime at HERA are presented. The data were collected with the H1 detector and correspond to an integrated luminosity of 179 pb-1. Events with dijets of transverse momentum PTjet1 > 7 GeV and PTjet2 > 6 GeV in the pseudorapidity range -1.5 < ηjet < 2.5 in the laboratory frame are selected in the kinematic region of photon virtuality Q2 < 2.5 GeV2 and inelasticity 0.2 < y < 0.8. One of the two selected jets must be associated to a muon with PTμ > 2.5 GeV in the pseudorapidity range -1.3 < η μ < 1.5. The fractions of beauty and charm events are determined using the impact parameters of the muon tracks with respect to the primary vertex and their transverse momentum relative to the axis of the associated jet. Both variables are reconstructed using the H1 vertex detector. The measurements are in agreement with QCD predictions at leading and next-to-leading order.

U2 - 10.1140/epjc/s10052-012-2047-5

DO - 10.1140/epjc/s10052-012-2047-5

M3 - Article

AN - SCOPUS:84864484154

SN - 1434-6044

VL - 72

SP - 1

EP - 19

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 2047

ER -

Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA

Abstract

Access to Document

Fingerprint

Cite this