Three- and four-jet production at low x at HERA

F. D. Aaron; A. Aktas; C. Alexa; V. Andreev; B. Antunovic; S. Aplin; A. Asmone; A. Astvatsatourov; S. Backovic; A. Baghdasaryan; P. Baranov; E. Barrelet; W. Bartel; S. Baudrand; M. Beckingham; K. Begzsuren; O. Behnke; O. Behrendt; A. Belousov; N. Berger; J. C. Bizot; M. -O. Boenig; V. Boudry; I. Bozovic-Jelisavcic; J. Bracinik; G. Brandt; M. Brinkmann; V. Brisson; D. Bruncko; F. W. Buesser; A. Bunyatyan; G. Buschhorn; L. Bystritskaya; A. J. Campbell; K. B. Cantun Avila; F. Cassol-Brunner; K. Cerny; V. Cerny; V. Chekelian; A. Cholewa; J. G. Contreras; J. A. Coughlan; G. Cozzika; J. Cvach; J. B. Dainton; K. Daume; M. Deak; Y. de Boer; B. Delcourt; M. Del Degan; J. Delvax; A. De Roeck; E. A. De Wolf; C. Diaconu; V. Dodonov; A. Dubak; G. Eckerlin; V. Efremenko; S. Egli; R. Eichler; F. Eisele; A. Eliseev; E. Elsen; S. Essenov; A. Falkiewicz; P. J. W. Faulkner; L. Favart; A. Fedotov; R. Felst; J. Feltesse; J. Ferencei; L. Finke; M. Fleischer; A. Fomenko; G. Franke; T. Frisson; E. Gabathuler; J. Gayler; S. Ghazaryan; S. Ginzburgskaya; A. Glazov; I. Glushkov; L. Goerlich; M. Goettlich; N. Gogitidze; S. Gorbounov; M. Gouzevitch; C. Grab; T. Greenshaw; B. R. Grell; G. Grindhammer; S. Habib; D. Haidt; Magnus Hansson; G. Heinzelmann; C. Helebrant; R. C. W. Henderson; H. Henschel; G. Herrera; M. Hildebrandt; K. H. Hiller; D. Hoffmann; R. Horisberger; A. Hovhannisyan; T. Hreus; M. Jacquet; M. E. Janssen; X. Janssen; V. Jemanov; Leif Jönsson; D. P. Johnson; A. W. Jung; H. Jung; M. Kapichine; J. Katzy; I. R. Kenyon; C. Kiesling; M. Klein; C. Kleinwort; T. Klimkovich; T. Kluge; A. Knutsson; V. Korbel; P. Kostka; M. Kraemer; K. Krastev; J. Kretzschmar; A. Kropivnitskaya; K. Krueger; M. P. J. Landon; W. Lange; G. Lastovicka-Medin; P. Laycock; A. Lebedev; G. Leibenguth; V. Lendermann; S. Levonian; G. Li; L. Lindfeld; K. Lipka; A. Liptaj; B. List; J. List; N. Loktionova; R. Lopez-Fernandez; V. Lubimov; A. -I. Lucaci-Timoce; L. Lytkin; A. Makankine; E. Malinovski; P. Marage; L. Marti; M. Martisikova; H. -U. Martyn; S. J. Maxfield; A. Mehta; K. Meier; A. B. Meyer; H. Meyer; H. Meyer; J. Meyer; V. Michels; S. Mikocki; I. Milcewicz-Mika; A. Mohamed; F. Moreau; A. Morozov; J. V. Morris; M. U. Mozer; K. Mueller; P. Murin; K. Nankov; B. Naroska; T. Naumann; P. R. Newman; C. Niebuhr; A. Nikiforov; G. Nowak; K. Nowak; M. Nozicka; R. Oganezov; B. Olivier; J. E. Olsson; Sakar Osman; D. Ozerov; V. Palichik; I. Panagoulias; M. Pandurovic; T. Papadopoulou; C. Pascaud; G. D. Patel; H. Peng; E. Perez; D. Perez-Astudillo; A. Perieanu; A. Petrukhin; I. Picuric; S. Piec; D. Pitzl; R. Placakyte; R. Polifka; B. Povh; T. Preda; P. Prideaux; V. Radescu; A. J. Rahmat; N. Raicevic; T. Ravdandorj; P. Reimer; C. Risler; E. Rizvi; P. Robmann; B. Roland; R. Roosen; A. Rostovtsev; Z. Rurikova; S. Rusakov; D. Salek; F. Salvaire; D. P. C. Sankey; M. Sauter; E. Sauvan; S. Schmidt; S. Schmitt; C. Schmitz; L. Schoeffel; A. Schoening; H. -C. Schultz-Coulon; F. Sefkow; R. N. Shaw-West; I. Sheviakov; L. N. Shtarkov; T. Sloan; I. Smiljanic; P. Smirnov; Y. Soloviev; D. South; V. Spaskov; A. Specka; Z. Staykova; M. Steder; B. Stella; J. Stiewe; U. Straumann; D. Sunar; T. Sykora; V. Tchoulakov; G. Thompson; P. D. Thompson; T. Toll; F. Tomasz; T. H. Tran; D. Traynor; T. N. Trinh; P. Truoel; I. Tsakov; B. Tseepeldorj; G. Tsipolitis; I. Tsurin; J. Turnau; E. Tzamariudaki; K. Urban; D. Utkin; A. Valkarova; C. Vallee; P. Van Mechelen; A. Vargas Trevino; Y. Vazdik; S. Vinokurova; V. Volchinski; G. Weber; R. Weber; D. Wegener; C. Werner; M. Wessels; C. Wissing; R. Wolf; E. Wuensch; S. Xella; V. Yeganov; J. Zacek; J. Zalesak; Z. Zhang; A. Zhelezov; A. Zhokin; Y. C. Zhu; T. Zimmermann; H. Zohrabyan; F. Zomer

doi:10.1140/epjc/s10052-008-0544-3

Three- and four-jet production at low x at HERA

F. D. Aaron, A. Aktas, C. Alexa, V. Andreev, B. Antunovic, S. Aplin, A. Asmone, A. Astvatsatourov, S. Backovic, A. Baghdasaryan, P. Baranov, E. Barrelet, W. Bartel, S. Baudrand, M. Beckingham, K. Begzsuren, O. Behnke, O. Behrendt, A. Belousov, N. BergerJ. C. Bizot, M. -O. Boenig, V. Boudry, I. Bozovic-Jelisavcic, J. Bracinik, G. Brandt, M. Brinkmann, V. Brisson, D. Bruncko, F. W. Buesser, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Cassol-Brunner, K. Cerny, V. Cerny, V. Chekelian, A. Cholewa, J. G. Contreras, J. A. Coughlan, G. Cozzika, J. Cvach, J. B. Dainton, K. Daume, M. Deak, Y. de Boer, B. Delcourt, M. Del Degan, J. Delvax, A. De Roeck, E. A. De Wolf, C. Diaconu, V. Dodonov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, A. Eliseev, E. Elsen, S. Essenov, A. Falkiewicz, P. J. W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, L. Finke, M. Fleischer, A. Fomenko, G. Franke, T. Frisson, E. Gabathuler, J. Gayler, S. Ghazaryan, S. Ginzburgskaya, A. Glazov, I. Glushkov, L. Goerlich, M. Goettlich, N. Gogitidze, S. Gorbounov, M. Gouzevitch, C. Grab, T. Greenshaw, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, Magnus Hansson, G. Heinzelmann, C. Helebrant, R. C. W. Henderson, H. Henschel, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, A. Hovhannisyan, T. Hreus, M. Jacquet, M. E. Janssen, X. Janssen, V. Jemanov, Leif Jönsson, D. P. Johnson, A. W. Jung, H. Jung, M. Kapichine, J. Katzy, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Klimkovich, T. Kluge, A. Knutsson, V. Korbel, P. Kostka, M. Kraemer, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krueger, M. P. J. Landon, W. Lange, G. Lastovicka-Medin, P. Laycock, A. Lebedev, G. Leibenguth, V. Lendermann, S. Levonian, G. Li, L. Lindfeld, K. Lipka, A. Liptaj, B. List, J. List, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. -I. Lucaci-Timoce, L. Lytkin, A. Makankine, E. Malinovski, P. Marage, L. Marti, M. Martisikova, H. -U. Martyn, S. J. Maxfield, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, H. Meyer, J. Meyer, V. Michels, S. Mikocki, I. Milcewicz-Mika, A. Mohamed, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, K. Mueller, P. Murin, K. Nankov, B. Naroska, T. Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, G. Nowak, K. Nowak, M. Nozicka, R. Oganezov, B. Olivier, J. E. Olsson, Sakar Osman, D. Ozerov, V. Palichik, I. Panagoulias, M. Pandurovic, T. Papadopoulou, C. Pascaud, G. D. Patel, H. Peng, E. Perez, D. Perez-Astudillo, A. Perieanu, A. Petrukhin, I. Picuric, S. Piec, D. Pitzl, R. Placakyte, R. Polifka, B. Povh, T. Preda, P. Prideaux, V. Radescu, A. J. Rahmat, N. Raicevic, T. Ravdandorj, P. Reimer, C. Risler, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, Z. Rurikova, S. Rusakov, D. Salek, F. Salvaire, D. P. C. Sankey, M. Sauter, E. Sauvan, S. Schmidt, S. Schmitt, C. Schmitz, L. Schoeffel, A. Schoening, H. -C. Schultz-Coulon, F. Sefkow, R. N. Shaw-West, I. Sheviakov, L. N. Shtarkov, T. Sloan, I. Smiljanic, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, J. Stiewe, U. Straumann, D. Sunar, T. Sykora, V. Tchoulakov, G. Thompson, P. D. Thompson, T. Toll, F. Tomasz, T. H. Tran, D. Traynor, T. N. Trinh, P. Truoel, I. Tsakov, B. Tseepeldorj, G. Tsipolitis, I. Tsurin, J. Turnau, E. Tzamariudaki, K. Urban, D. Utkin, A. Valkarova, C. Vallee, P. Van Mechelen, A. Vargas Trevino, Y. Vazdik, S. Vinokurova, V. Volchinski, G. Weber, R. Weber, D. Wegener, C. Werner, M. Wessels, C. Wissing, R. Wolf, E. Wuensch, S. Xella, V. Yeganov, J. Zacek, J. Zalesak, Z. Zhang, A. Zhelezov, A. Zhokin, Y. C. Zhu, T. Zimmermann, H. Zohrabyan, F. Zomer

Particle and nuclear physics

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

Abstract

Three- and four-jet production is measured in deep-inelastic ep scattering at low x and Q(2) with the H1 detector using an integrated luminosity of 44.2 pb(-1). Several phase space regions are selected for the three-jet analysis in order to study the underlying parton dynamics from global topologies to the more restrictive regions of forward jets close to the proton direction. The measurements of cross sections for events with at least three jets are compared to fixed order QCD predictions of O(alpha(2)(s)) and O(alpha(3)(s)) and with Monte Carlo simulation programs where higher order effects are approximated by parton showers. A good overall description is provided by the O(alpha(3)(s)) calculation. Too few events are predicted at the lowest x similar to 10(-4), especially for topologies with two forward jets. This hints to large contributions at low x from initial state radiation of gluons close to the proton direction and unordered in transverse momentum. The Monte Carlo program in which gluon radiation is generated by the colour dipole model gives a good description of both the three- and the four-jet data in absolute normalisation and shape.

Original language	English
Pages (from-to)	389-409
Journal	European Physical Journal C. Particles and Fields
Volume	54
Issue number	3
DOIs	https://doi.org/10.1140/epjc/s10052-008-0544-3
Publication status	Published - 2008

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1140/epjc/s10052-008-0544-3

Cite this

Aaron, F. D., Aktas, A., Alexa, C., Andreev, V., Antunovic, B., Aplin, S., Asmone, A., Astvatsatourov, A., Backovic, S., Baghdasaryan, A., Baranov, P., Barrelet, E., Bartel, W., Baudrand, S., Beckingham, M., Begzsuren, K., Behnke, O., Behrendt, O., Belousov, A., ... Zomer, F. (2008). Three- and four-jet production at low x at HERA. European Physical Journal C. Particles and Fields, 54(3), 389-409. https://doi.org/10.1140/epjc/s10052-008-0544-3

@article{9cc7b7ce2d9146bd816e8755c413770b,

title = "Three- and four-jet production at low x at HERA",

abstract = "Three- and four-jet production is measured in deep-inelastic ep scattering at low x and Q(2) with the H1 detector using an integrated luminosity of 44.2 pb(-1). Several phase space regions are selected for the three-jet analysis in order to study the underlying parton dynamics from global topologies to the more restrictive regions of forward jets close to the proton direction. The measurements of cross sections for events with at least three jets are compared to fixed order QCD predictions of O(alpha(2)(s)) and O(alpha(3)(s)) and with Monte Carlo simulation programs where higher order effects are approximated by parton showers. A good overall description is provided by the O(alpha(3)(s)) calculation. Too few events are predicted at the lowest x similar to 10(-4), especially for topologies with two forward jets. This hints to large contributions at low x from initial state radiation of gluons close to the proton direction and unordered in transverse momentum. The Monte Carlo program in which gluon radiation is generated by the colour dipole model gives a good description of both the three- and the four-jet data in absolute normalisation and shape.",

author = "Aaron, {F. D.} and A. Aktas and C. Alexa and V. Andreev and B. Antunovic and S. Aplin and A. Asmone and A. Astvatsatourov and S. Backovic and A. Baghdasaryan and P. Baranov and E. Barrelet and W. Bartel and S. Baudrand and M. Beckingham and K. Begzsuren and O. Behnke and O. Behrendt and A. Belousov and N. Berger and Bizot, {J. C.} and Boenig, {M. -O.} and V. Boudry and I. Bozovic-Jelisavcic and J. Bracinik and G. Brandt and M. Brinkmann and V. Brisson and D. Bruncko and Buesser, {F. W.} and A. Bunyatyan and G. Buschhorn and L. Bystritskaya and Campbell, {A. J.} and Avila, {K. B. Cantun} and F. Cassol-Brunner and K. Cerny and V. Cerny and V. Chekelian and A. Cholewa and Contreras, {J. G.} and Coughlan, {J. A.} and G. Cozzika and J. Cvach and Dainton, {J. B.} and K. Daume and M. Deak and {de Boer}, Y. and B. Delcourt and {Del Degan}, M. and J. Delvax and {De Roeck}, A. 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 A. Eliseev and E. Elsen and S. Essenov and A. Falkiewicz and Faulkner, {P. J. W.} and L. Favart and A. Fedotov and R. Felst and J. Feltesse and J. Ferencei and L. Finke and M. Fleischer and A. Fomenko and G. Franke and T. Frisson and E. Gabathuler and J. Gayler 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 M. Gouzevitch and C. Grab and T. Greenshaw and Grell, {B. R.} and G. Grindhammer and S. Habib and D. Haidt and Magnus Hansson and G. Heinzelmann and C. Helebrant and Henderson, {R. C. W.} and H. Henschel and G. Herrera and M. Hildebrandt and Hiller, {K. H.} and D. Hoffmann and R. Horisberger and A. Hovhannisyan and T. Hreus and M. Jacquet and Janssen, {M. E.} and X. Janssen and V. Jemanov and Leif J{\"o}nsson and Johnson, {D. P.} and Jung, {A. W.} and H. Jung and M. Kapichine and J. Katzy and Kenyon, {I. R.} and C. Kiesling and M. Klein and C. Kleinwort and T. Klimkovich and T. Kluge and A. Knutsson and V. Korbel and P. Kostka and M. Kraemer and K. Krastev and J. Kretzschmar and A. Kropivnitskaya and K. Krueger and Landon, {M. P. J.} and W. Lange and G. Lastovicka-Medin and P. Laycock and A. Lebedev and G. Leibenguth and V. Lendermann and S. Levonian and G. Li and L. Lindfeld and K. Lipka and A. Liptaj and B. List and J. List and N. Loktionova and R. Lopez-Fernandez and V. Lubimov and Lucaci-Timoce, {A. -I.} and L. Lytkin and A. Makankine and E. Malinovski and P. Marage and L. Marti and M. Martisikova and Martyn, {H. -U.} and Maxfield, {S. J.} and A. Mehta and K. Meier and Meyer, {A. B.} and H. Meyer and H. Meyer and J. Meyer and V. Michels and S. Mikocki and I. Milcewicz-Mika and A. Mohamed and F. Moreau and A. Morozov and Morris, {J. V.} and Mozer, {M. U.} and K. Mueller and P. Murin and K. Nankov and B. Naroska and T. Naumann and Newman, {P. R.} and C. Niebuhr and A. Nikiforov and G. Nowak and K. Nowak and M. Nozicka and R. Oganezov and B. Olivier and Olsson, {J. E.} and Sakar Osman and D. Ozerov and V. Palichik and I. Panagoulias and M. Pandurovic and T. Papadopoulou and C. Pascaud and Patel, {G. D.} and H. Peng and E. Perez and D. Perez-Astudillo and A. Perieanu and A. Petrukhin and I. Picuric and S. Piec and D. Pitzl and R. Placakyte and R. Polifka and B. Povh and T. Preda and P. Prideaux and V. Radescu and Rahmat, {A. J.} and N. Raicevic and T. Ravdandorj and P. Reimer 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 D. Salek and F. Salvaire and Sankey, {D. P. C.} and M. Sauter and E. Sauvan and S. Schmidt and S. Schmitt and C. Schmitz and L. Schoeffel and A. Schoening and Schultz-Coulon, {H. -C.} and F. Sefkow and Shaw-West, {R. N.} and I. Sheviakov and Shtarkov, {L. N.} and T. Sloan and I. Smiljanic and P. Smirnov and Y. Soloviev and D. South and V. Spaskov and A. Specka and Z. Staykova and M. Steder and B. Stella and J. Stiewe and U. Straumann and D. Sunar and T. Sykora and V. Tchoulakov and G. Thompson and Thompson, {P. D.} and T. Toll and F. Tomasz and Tran, {T. H.} and D. Traynor and Trinh, {T. N.} and P. Truoel and I. Tsakov and B. Tseepeldorj and G. Tsipolitis and I. Tsurin and J. Turnau and E. Tzamariudaki and K. Urban and D. Utkin and A. Valkarova and C. Vallee and {Van Mechelen}, P. and Trevino, {A. Vargas} and Y. Vazdik and S. Vinokurova and V. Volchinski and G. Weber and R. Weber and D. Wegener and C. Werner and M. Wessels and C. Wissing and R. Wolf and E. Wuensch and S. Xella and V. Yeganov and J. Zacek and J. Zalesak and Z. Zhang and A. Zhelezov and A. Zhokin and Zhu, {Y. C.} and T. Zimmermann and H. Zohrabyan and F. Zomer",

year = "2008",

doi = "10.1140/epjc/s10052-008-0544-3",

language = "English",

volume = "54",

pages = "389--409",

journal = "European Physical Journal C. Particles and Fields",

issn = "1434-6044",

publisher = "Springer Nature",

number = "3",

}

Aaron, FD, Aktas, A, Alexa, C, Andreev, V, Antunovic, B, Aplin, S, Asmone, A, Astvatsatourov, A, Backovic, S, Baghdasaryan, A, Baranov, P, Barrelet, E, Bartel, W, Baudrand, S, Beckingham, M, Begzsuren, K, Behnke, O, Behrendt, O, Belousov, A, Berger, N, Bizot, JC, Boenig, M-O, Boudry, V, Bozovic-Jelisavcic, I, Bracinik, J, Brandt, G, Brinkmann, M, Brisson, V, Bruncko, D, Buesser, FW, Bunyatyan, A, Buschhorn, G, Bystritskaya, L, Campbell, AJ, Avila, KBC, Cassol-Brunner, F, Cerny, K, Cerny, V, Chekelian, V, Cholewa, A, Contreras, JG, Coughlan, JA, Cozzika, G, Cvach, J, Dainton, JB, Daume, K, Deak, M, de Boer, Y, Delcourt, B, Del Degan, M, Delvax, J, 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, Falkiewicz, A, Faulkner, PJW, Favart, L, Fedotov, A, Felst, R, Feltesse, J, Ferencei, J, Finke, L, Fleischer, M, Fomenko, A, Franke, G, Frisson, T, Gabathuler, E, Gayler, J, Ghazaryan, S, Ginzburgskaya, S, Glazov, A, Glushkov, I, Goerlich, L, Goettlich, M, Gogitidze, N, Gorbounov, S, Gouzevitch, M, Grab, C, Greenshaw, T, Grell, BR, Grindhammer, G, Habib, S, Haidt, D, Hansson, M, Heinzelmann, G, Helebrant, C, Henderson, RCW, Henschel, H, Herrera, G, Hildebrandt, M, Hiller, KH, Hoffmann, D, Horisberger, R, Hovhannisyan, A, Hreus, T, Jacquet, M, Janssen, ME, Janssen, X, Jemanov, V, Jönsson, L, Johnson, DP, Jung, AW, Jung, H, Kapichine, M, Katzy, J, Kenyon, IR, Kiesling, C, Klein, M, Kleinwort, C, Klimkovich, T, Kluge, T, Knutsson, A, Korbel, V, Kostka, P, Kraemer, M, Krastev, K, Kretzschmar, J, Kropivnitskaya, A, Krueger, K, Landon, MPJ, Lange, W, Lastovicka-Medin, G, Laycock, P, Lebedev, A, Leibenguth, G, Lendermann, V, Levonian, S, Li, G, Lindfeld, L, Lipka, K, Liptaj, A, List, B, List, J, Loktionova, N, Lopez-Fernandez, R, Lubimov, V, Lucaci-Timoce, A-I, Lytkin, L, Makankine, A, Malinovski, E, Marage, P, Marti, L, Martisikova, M, Martyn, H-U, Maxfield, SJ, Mehta, A, Meier, K, Meyer, AB, Meyer, H, Meyer, H, Meyer, J, Michels, V, Mikocki, S, Milcewicz-Mika, I, Mohamed, A, Moreau, F, Morozov, A, Morris, JV, Mozer, MU, Mueller, K, Murin, P, Nankov, K, Naroska, B, Naumann, T, 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, Pandurovic, M, Papadopoulou, T, Pascaud, C, Patel, GD, Peng, H, Perez, E, Perez-Astudillo, D, Perieanu, A, Petrukhin, A, Picuric, I, Piec, S, Pitzl, D, Placakyte, R, Polifka, R, Povh, B, Preda, T, Prideaux, P, Radescu, V, Rahmat, AJ, Raicevic, N, Ravdandorj, T, Reimer, P, Risler, C, Rizvi, E, Robmann, P, Roland, B, Roosen, R, Rostovtsev, A, Rurikova, Z, Rusakov, S, Salek, D, Salvaire, F, Sankey, DPC, Sauter, M, Sauvan, E, Schmidt, S, Schmitt, S, Schmitz, C, Schoeffel, L, Schoening, A, Schultz-Coulon, H-C, Sefkow, F, Shaw-West, RN, Sheviakov, I, Shtarkov, LN, Sloan, T, Smiljanic, I, Smirnov, P, Soloviev, Y, South, D, Spaskov, V, Specka, A, Staykova, Z, Steder, M, Stella, B, Stiewe, J, Straumann, U, Sunar, D, Sykora, T, Tchoulakov, V, Thompson, G, Thompson, PD, Toll, T, Tomasz, F, Tran, TH, Traynor, D, Trinh, TN, Truoel, P, Tsakov, I, Tseepeldorj, B, Tsipolitis, G, Tsurin, I, Turnau, J, Tzamariudaki, E, Urban, K, Utkin, D, Valkarova, A, Vallee, C, Van Mechelen, P, Trevino, AV, Vazdik, Y, Vinokurova, S, Volchinski, V, Weber, G, Weber, R, Wegener, D, Werner, C, Wessels, M, Wissing, C, Wolf, R, Wuensch, E, Xella, S, Yeganov, V, Zacek, J, Zalesak, J, Zhang, Z, Zhelezov, A, Zhokin, A, Zhu, YC, Zimmermann, T, Zohrabyan, H & Zomer, F 2008, 'Three- and four-jet production at low x at HERA', European Physical Journal C. Particles and Fields, vol. 54, no. 3, pp. 389-409. https://doi.org/10.1140/epjc/s10052-008-0544-3

TY - JOUR

T1 - Three- and four-jet production at low x at HERA

AU - Aaron, F. D.

AU - Aktas, A.

AU - Alexa, C.

AU - Andreev, V.

AU - Antunovic, B.

AU - Aplin, S.

AU - Asmone, A.

AU - Astvatsatourov, A.

AU - Backovic, S.

AU - Baghdasaryan, A.

AU - Baranov, P.

AU - Barrelet, E.

AU - Bartel, W.

AU - Baudrand, S.

AU - Beckingham, M.

AU - Begzsuren, K.

AU - Behnke, O.

AU - Behrendt, O.

AU - Belousov, A.

AU - Berger, N.

AU - Bizot, J. C.

AU - Boenig, M. -O.

AU - Boudry, V.

AU - Bozovic-Jelisavcic, I.

AU - Bracinik, J.

AU - Brandt, G.

AU - Brinkmann, M.

AU - Brisson, V.

AU - Bruncko, D.

AU - Buesser, F. W.

AU - Bunyatyan, A.

AU - Buschhorn, G.

AU - Bystritskaya, L.

AU - Campbell, A. J.

AU - Avila, K. B. Cantun

AU - Cassol-Brunner, F.

AU - Cerny, K.

AU - Cerny, V.

AU - Chekelian, V.

AU - Cholewa, A.

AU - Contreras, J. G.

AU - Coughlan, J. A.

AU - Cozzika, G.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Daume, K.

AU - Deak, M.

AU - de Boer, Y.

AU - Delcourt, B.

AU - Del Degan, M.

AU - Delvax, J.

AU - De Roeck, A.

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 - Eliseev, A.

AU - Elsen, E.

AU - Essenov, S.

AU - Falkiewicz, A.

AU - Faulkner, P. J. W.

AU - Favart, L.

AU - Fedotov, A.

AU - Felst, R.

AU - Feltesse, J.

AU - Ferencei, J.

AU - Finke, L.

AU - Fleischer, M.

AU - Fomenko, A.

AU - Franke, G.

AU - Frisson, T.

AU - Gabathuler, E.

AU - Gayler, J.

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 - Gouzevitch, M.

AU - Grab, C.

AU - Greenshaw, T.

AU - Grell, B. R.

AU - Grindhammer, G.

AU - Habib, S.

AU - Haidt, D.

AU - Hansson, Magnus

AU - Heinzelmann, G.

AU - Helebrant, C.

AU - Henderson, R. C. W.

AU - Henschel, H.

AU - Herrera, G.

AU - Hildebrandt, M.

AU - Hiller, K. H.

AU - Hoffmann, D.

AU - Horisberger, R.

AU - Hovhannisyan, A.

AU - Hreus, T.

AU - Jacquet, M.

AU - Janssen, M. E.

AU - Janssen, X.

AU - Jemanov, V.

AU - Jönsson, Leif

AU - Johnson, D. P.

AU - Jung, A. W.

AU - Jung, H.

AU - Kapichine, M.

AU - Katzy, J.

AU - Kenyon, I. R.

AU - Kiesling, C.

AU - Klein, M.

AU - Kleinwort, C.

AU - Klimkovich, T.

AU - Kluge, T.

AU - Knutsson, A.

AU - Korbel, V.

AU - Kostka, P.

AU - Kraemer, M.

AU - Krastev, K.

AU - Kretzschmar, J.

AU - Kropivnitskaya, A.

AU - Krueger, K.

AU - Landon, M. P. J.

AU - Lange, W.

AU - Lastovicka-Medin, G.

AU - Laycock, P.

AU - Lebedev, A.

AU - Leibenguth, G.

AU - Lendermann, V.

AU - Levonian, S.

AU - Li, G.

AU - Lindfeld, L.

AU - Lipka, K.

AU - Liptaj, A.

AU - List, B.

AU - List, J.

AU - Loktionova, N.

AU - Lopez-Fernandez, R.

AU - Lubimov, V.

AU - Lucaci-Timoce, A. -I.

AU - Lytkin, L.

AU - Makankine, A.

AU - Malinovski, E.

AU - Marage, P.

AU - Marti, L.

AU - Martisikova, M.

AU - Martyn, H. -U.

AU - Maxfield, S. J.

AU - Mehta, A.

AU - Meier, K.

AU - Meyer, A. B.

AU - Meyer, H.

AU - Meyer, J.

AU - Michels, V.

AU - Mikocki, S.

AU - Milcewicz-Mika, I.

AU - Mohamed, A.

AU - Moreau, F.

AU - Morozov, A.

AU - Morris, J. V.

AU - Mozer, M. U.

AU - Mueller, K.

AU - Murin, P.

AU - Nankov, K.

AU - Naroska, B.

AU - Naumann, T.

AU - Newman, P. R.

AU - Niebuhr, C.

AU - Nikiforov, A.

AU - Nowak, G.

AU - Nowak, K.

AU - Nozicka, M.

AU - Oganezov, R.

AU - Olivier, B.

AU - Olsson, J. E.

AU - Osman, Sakar

AU - Ozerov, D.

AU - Palichik, V.

AU - Panagoulias, I.

AU - Pandurovic, M.

AU - Papadopoulou, T.

AU - Pascaud, C.

AU - Patel, G. D.

AU - Peng, H.

AU - Perez, E.

AU - Perez-Astudillo, D.

AU - Perieanu, A.

AU - Petrukhin, A.

AU - Picuric, I.

AU - Piec, S.

AU - Pitzl, D.

AU - Placakyte, R.

AU - Polifka, R.

AU - Povh, B.

AU - Preda, T.

AU - Prideaux, P.

AU - Radescu, V.

AU - Rahmat, A. J.

AU - Raicevic, N.

AU - Ravdandorj, T.

AU - Reimer, P.

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 - Salek, D.

AU - Salvaire, F.

AU - Sankey, D. P. C.

AU - Sauter, M.

AU - Sauvan, E.

AU - Schmidt, S.

AU - Schmitt, S.

AU - Schmitz, C.

AU - Schoeffel, L.

AU - Schoening, A.

AU - Schultz-Coulon, H. -C.

AU - Sefkow, F.

AU - Shaw-West, R. N.

AU - Sheviakov, I.

AU - Shtarkov, L. N.

AU - Sloan, T.

AU - Smiljanic, I.

AU - Smirnov, P.

AU - Soloviev, Y.

AU - South, D.

AU - Spaskov, V.

AU - Specka, A.

AU - Staykova, Z.

AU - Steder, M.

AU - Stella, B.

AU - Stiewe, J.

AU - Straumann, U.

AU - Sunar, D.

AU - Sykora, T.

AU - Tchoulakov, V.

AU - Thompson, G.

AU - Thompson, P. D.

AU - Toll, T.

AU - Tomasz, F.

AU - Tran, T. H.

AU - Traynor, D.

AU - Trinh, T. N.

AU - Truoel, P.

AU - Tsakov, I.

AU - Tseepeldorj, B.

AU - Tsipolitis, G.

AU - Tsurin, I.

AU - Turnau, J.

AU - Tzamariudaki, E.

AU - Urban, K.

AU - Utkin, D.

AU - Valkarova, A.

AU - Vallee, C.

AU - Van Mechelen, P.

AU - Trevino, A. Vargas

AU - Vazdik, Y.

AU - Vinokurova, S.

AU - Volchinski, V.

AU - Weber, G.

AU - Weber, R.

AU - Wegener, D.

AU - Werner, C.

AU - Wessels, M.

AU - Wissing, C.

AU - Wolf, R.

AU - Wuensch, E.

AU - Xella, S.

AU - Yeganov, V.

AU - Zacek, J.

AU - Zalesak, J.

AU - Zhang, Z.

AU - Zhelezov, A.

AU - Zhokin, A.

AU - Zhu, Y. C.

AU - Zimmermann, T.

AU - Zohrabyan, H.

AU - Zomer, F.

PY - 2008

Y1 - 2008

N2 - Three- and four-jet production is measured in deep-inelastic ep scattering at low x and Q(2) with the H1 detector using an integrated luminosity of 44.2 pb(-1). Several phase space regions are selected for the three-jet analysis in order to study the underlying parton dynamics from global topologies to the more restrictive regions of forward jets close to the proton direction. The measurements of cross sections for events with at least three jets are compared to fixed order QCD predictions of O(alpha(2)(s)) and O(alpha(3)(s)) and with Monte Carlo simulation programs where higher order effects are approximated by parton showers. A good overall description is provided by the O(alpha(3)(s)) calculation. Too few events are predicted at the lowest x similar to 10(-4), especially for topologies with two forward jets. This hints to large contributions at low x from initial state radiation of gluons close to the proton direction and unordered in transverse momentum. The Monte Carlo program in which gluon radiation is generated by the colour dipole model gives a good description of both the three- and the four-jet data in absolute normalisation and shape.

AB - Three- and four-jet production is measured in deep-inelastic ep scattering at low x and Q(2) with the H1 detector using an integrated luminosity of 44.2 pb(-1). Several phase space regions are selected for the three-jet analysis in order to study the underlying parton dynamics from global topologies to the more restrictive regions of forward jets close to the proton direction. The measurements of cross sections for events with at least three jets are compared to fixed order QCD predictions of O(alpha(2)(s)) and O(alpha(3)(s)) and with Monte Carlo simulation programs where higher order effects are approximated by parton showers. A good overall description is provided by the O(alpha(3)(s)) calculation. Too few events are predicted at the lowest x similar to 10(-4), especially for topologies with two forward jets. This hints to large contributions at low x from initial state radiation of gluons close to the proton direction and unordered in transverse momentum. The Monte Carlo program in which gluon radiation is generated by the colour dipole model gives a good description of both the three- and the four-jet data in absolute normalisation and shape.

U2 - 10.1140/epjc/s10052-008-0544-3

DO - 10.1140/epjc/s10052-008-0544-3

M3 - Article

SN - 1434-6044

VL - 54

SP - 389

EP - 409

JO - European Physical Journal C. Particles and Fields

JF - European Physical Journal C. Particles and Fields

IS - 3

ER -

Three- and four-jet production at low x at HERA

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