Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering 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; G. Buschhorn; 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; B. R. Grell; G. Grindhammer; S. Habib; D. Haidt; C. Helebrant; 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; Leif Jönsson; H. Jung; M. Kapichine; I. R. Kenyon; C. Kiesling; M. Klein; C. Kleinwort; T. Kluge; R. Kogler; P. Kostka; M. Kraemer; J. Kretzschmar; K. Krueger; M. P. J. Landon; W. Lange; G. Lastovicka-Medin; P. Laycock; A. Lebedev; V. Lendermann; S. Levonian; K. Lipka; B. List; J. List; R. Lopez-Fernandez; V. Lubimov; A. Makankine; E. Malinovski; P. Marage; 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; M. Mudrinic; K. Mueller; 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; S. Piec; H. Pirumov; D. Pitzl; R. Placakyte; 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. Salek; D. P. C. Sankey; M. Sauter; E. Sauvan; S. Schmitt; L. Schoeffel; A. Schoening; H. -C. Schultz-Coulon; F. Sefkow; L. N. Shtarkov; S. Shushkevich; T. Sloan; I. Smiljanic; 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. Truoel; I. Tsakov; B. Tseepeldorj; J. Turnau; A. Valkarova; C. Vallee; P. Van Mechelen; Y. Vazdik; D. Wegener; E. Wuensch; J. Zacek; J. Zalesak; Z. Zhang; A. Zhokin; H. Zohrabyan; F. Zomer

doi:10.1140/epjc/s10052-012-1910-8

Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering 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. BrunckoA. Bunyatyan, G. Buschhorn, 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, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, C. Helebrant, 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, Leif Jönsson, H. Jung, M. Kapichine, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, R. Kogler, P. Kostka, M. Kraemer, J. Kretzschmar, K. Krueger, M. P. J. Landon, W. Lange, G. Lastovicka-Medin, P. Laycock, A. Lebedev, V. Lendermann, S. Levonian, K. Lipka, B. List, J. List, R. Lopez-Fernandez, V. Lubimov, A. Makankine, E. Malinovski, P. Marage, 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, M. Mudrinic, K. Mueller, 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, S. Piec, H. Pirumov, D. Pitzl, R. Placakyte, 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. Salek, D. P. C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schoening, H. -C. Schultz-Coulon, F. Sefkow, L. N. Shtarkov, S. Shushkevich, T. Sloan, I. Smiljanic, 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. Truoel, I. Tsakov, B. Tseepeldorj, J. Turnau, A. Valkarova, C. Vallee, P. Van Mechelen, Y. Vazdik, D. Wegener, E. Wuensch, J. Zacek, J. Zalesak, Z. Zhang, A. Zhokin, H. Zohrabyan, F. Zomer

Particle and nuclear physics

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

Abstract

Deep-inelastic positron-proton scattering events at low photon virtuality, Q(2), with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Delta phi, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms.

Original language	English
Journal	European Physical Journal C. Particles and Fields
Volume	72
Issue number	3
DOIs	https://doi.org/10.1140/epjc/s10052-012-1910-8
Publication status	Published - 2012

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1140/epjc/s10052-012-1910-8

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 the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA. European Physical Journal C. Particles and Fields, 72(3). https://doi.org/10.1140/epjc/s10052-012-1910-8

@article{73fca3b797124ee0805bcc7e86e8a0d4,

title = "Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA",

abstract = "Deep-inelastic positron-proton scattering events at low photon virtuality, Q(2), with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Delta phi, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms.",

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 G. Buschhorn 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 Grell, {B. R.} and G. Grindhammer and S. Habib and D. Haidt and C. Helebrant 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 Leif 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. Kraemer and J. Kretzschmar and K. Krueger and Landon, {M. P. J.} and W. Lange and G. Lastovicka-Medin and P. Laycock and A. Lebedev and V. Lendermann and S. Levonian and K. Lipka and B. List and J. List and R. Lopez-Fernandez and V. Lubimov and A. Makankine and E. Malinovski and P. Marage 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 M. Mudrinic and K. Mueller 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 S. Piec and H. Pirumov and D. Pitzl and R. Placakyte 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. Salek and Sankey, {D. P. C.} and M. Sauter and E. Sauvan and S. Schmitt and L. Schoeffel and A. Schoening and Schultz-Coulon, {H. -C.} and F. Sefkow and Shtarkov, {L. N.} and S. Shushkevich and T. Sloan and I. Smiljanic 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. Truoel and I. Tsakov and B. Tseepeldorj and J. Turnau and A. Valkarova and C. Vallee and {Van Mechelen}, P. and Y. Vazdik and D. Wegener and E. Wuensch and J. Zacek and J. Zalesak and Z. Zhang and A. Zhokin and H. Zohrabyan and F. Zomer",

year = "2012",

doi = "10.1140/epjc/s10052-012-1910-8",

language = "English",

volume = "72",

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

issn = "1434-6044",

publisher = "Springer",

number = "3",

}

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, Buschhorn, G, 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, D-J, Fleischer, M, Fomenko, A, Gabathuler, E, Gayler, J, Ghazaryan, S, Glazov, A, Goerlich, L, Gogitidze, N, Gouzevitch, M, Grab, C, Grebenyuk, A, Greenshaw, T, Grell, BR, Grindhammer, G, Habib, S, Haidt, D, Helebrant, C, 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, Kraemer, M, Kretzschmar, J, Krueger, K, Landon, MPJ, Lange, W, Lastovicka-Medin, G, Laycock, P, Lebedev, A, Lendermann, V, Levonian, S, Lipka, K, List, B, List, J, Lopez-Fernandez, R, Lubimov, V, Makankine, A, Malinovski, E, Marage, P, Martyn, H-U, Maxfield, SJ, Mehta, A, Meyer, AB, Meyer, H, Meyer, J, Mikocki, S, Milcewicz-Mika, I, Moreau, F, Morozov, A, Morris, JV, Mudrinic, M, Mueller, 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, Piec, S, Pirumov, H, Pitzl, D, Placakyte, 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, Salek, D, Sankey, DPC, Sauter, M, Sauvan, E, Schmitt, S, Schoeffel, L, Schoening, A, Schultz-Coulon, H-C, Sefkow, F, Shtarkov, LN, Shushkevich, S, Sloan, T, Smiljanic, I, 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, Truoel, P, Tsakov, I, Tseepeldorj, B, Turnau, J, Valkarova, A, Vallee, C, Van Mechelen, P, Vazdik, Y, Wegener, D, Wuensch, E, Zacek, J, Zalesak, J, Zhang, Z, Zhokin, A, Zohrabyan, H & Zomer, F 2012, 'Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA', European Physical Journal C. Particles and Fields, vol. 72, no. 3. https://doi.org/10.1140/epjc/s10052-012-1910-8

TY - JOUR

T1 - Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering 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 - Buschhorn, G.

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 - Grell, B. R.

AU - Grindhammer, G.

AU - Habib, S.

AU - Haidt, D.

AU - Helebrant, C.

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, Leif

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 - Kraemer, M.

AU - Kretzschmar, J.

AU - Krueger, K.

AU - Landon, M. P. J.

AU - Lange, W.

AU - Lastovicka-Medin, G.

AU - Laycock, P.

AU - Lebedev, A.

AU - Lendermann, V.

AU - Levonian, S.

AU - Lipka, K.

AU - List, B.

AU - List, J.

AU - Lopez-Fernandez, R.

AU - Lubimov, V.

AU - Makankine, A.

AU - Malinovski, E.

AU - Marage, P.

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 - Mudrinic, M.

AU - Mueller, 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 - Piec, S.

AU - Pirumov, H.

AU - Pitzl, D.

AU - Placakyte, 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 - Salek, D.

AU - Sankey, D. P. C.

AU - Sauter, M.

AU - Sauvan, E.

AU - Schmitt, S.

AU - Schoeffel, L.

AU - Schoening, A.

AU - Schultz-Coulon, H. -C.

AU - Sefkow, F.

AU - Shtarkov, L. N.

AU - Shushkevich, S.

AU - Sloan, T.

AU - Smiljanic, I.

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 - Truoel, P.

AU - Tsakov, I.

AU - Tseepeldorj, B.

AU - Turnau, J.

AU - Valkarova, A.

AU - Vallee, C.

AU - Van Mechelen, P.

AU - Vazdik, Y.

AU - Wegener, D.

AU - Wuensch, E.

AU - Zacek, J.

AU - Zalesak, J.

AU - Zhang, Z.

AU - Zhokin, A.

AU - Zohrabyan, H.

AU - Zomer, F.

PY - 2012

Y1 - 2012

N2 - Deep-inelastic positron-proton scattering events at low photon virtuality, Q(2), with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Delta phi, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms.

AB - Deep-inelastic positron-proton scattering events at low photon virtuality, Q(2), with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Delta phi, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms.

U2 - 10.1140/epjc/s10052-012-1910-8

DO - 10.1140/epjc/s10052-012-1910-8

M3 - Article

SN - 1434-6044

VL - 72

JO - European Physical Journal C. Particles and Fields

JF - European Physical Journal C. Particles and Fields

IS - 3

ER -

Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA

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