Prof Roman Walczak: Publications

Scaled momentum spectra in deep inelastic scattering at HERA

JOURNAL OF HIGH ENERGY PHYSICS (2010) ARTN 009

Authors:

H Abramowicz, I Abt, L Adamczyk, M Adamus, S Antonelli, P Antonioli, A Antonov, M Arneodo, V Aushev, Y Aushev, O Bachynska, A Bamberger, AN Barakbaev, G Barbagli, G Bari, F Barreiro, D Bartsch, M Basile, O Behnke, J Behr, U Behrens, L Bellagamba, A Bertolin, S Bhadra, M Bindi, C Blohm, T Bold, EG Boos, M Borodin, K Borras, D Boscherini, D Bot, SK Boutle, I Brock, E Brownson, R Brugnera, N Bruemmer, A Bruni, G Bruni, B Brzozowska, PJ Bussey, JM Butterworth, B Bylsma, A Caldwell, M Capua, R Carlin, CD Catterall, S Chekanov, J Chwastowski, J Ciborowski, R Ciesielski, L Cifarelli, F Cindolo, A Contin, AM Cooper-Sarkar, N Coppola, M Corradi, F Corriveau, M Costa, G D'Agostini, F Dal Corso, J de Favereau, J del Peso, RK Dementiev, S De Pasquale, M Derrick, RCE Devenish, D Dobur, BA Dolgoshein, AT Doyle, V Drugakov, LS Durkin, S Dusini, Y Eisenberg, PF Ermolov, A Eskreys, S Fang, S Fazio, J Ferrando, MI Ferrero, J Figiel, M Forrest, S Fourletov, A Galas, E Gallo, A Garfagnini, A Geiser, I Gialas, LK Gladilin, D Gladkov, C Glasman, O Gogota, YA Golubkov, P Goettlicher, I Grabowska-Bold, J Grebenyuk, I Gregor, G Grigorescu, G Grzelak, C Gwenlan, T Haas, W Hain, R Hamatsu, JC Hart, H Hartmann, G Hartner, E Hilger, D Hochman, U Holm, R Hori, K Horton, A Huettmann, ZA Ibrahim, Y Iga, R Ingbir, M Ishitsuka, H-P Jakob, F Januschek, M Jimenez, TW Jones, M Juengst, I Kadenko, B Kahle, B Kamaluddin, S Kananov, T Kanno, U Karshon, F Karstens, II Katkov, M Kaur, P Kaur, A Keramidas, LA Khein, JY Kim, D Kisielewska, S Kitamura, R Klanner, U Klein, E Koffeman, D Kollar, P Kooijman, I Korol, A Kotanski, U Koetz, H Kowalski, P Kulinski, O Kuprash, M Kuze, VA Kuzmin, A Lee, BB Levchenko, A Levy, V Libov, S Limentani, TY Ling, M Lisovyi, W Lohmann, B Loehr, E Lohrmann, JH Loizides, KR Long, A Longhin, D Lontkovskyi, J Lukasik, OY Lukina, P Luzniak, J Maeda, S Magill, I Makarenko, J Malka, R Mankel, A Margotti, G Marini, JF Martin, A Mastroberardino, T Matsumoto, MCK Mattingly, F Mohamad Idris, V Monaco, A Montanari, JD Morris, B Musgrave, K Nagano, T Namsoo, R Nania, D Nicholass, A Nigro, Y Ning, U Noor, D Notz, RJ Nowak, BY Oh, N Okazaki, K Oliver, K Olkiewicz, O Ota, K Papageorgiu, E Paul, JM Pawlak, B Pawlik, PG Pelfer, A Pellegrino, W Perlanski, H Perrey, K Piotrzkowski, P Plucinski, NS Pokrovskiy, A Polini, AS Proskuryakov, A Raval, DD Reeder, B Reisert, Z Ren, YD Ri, A Robertson, P Roloff, E Ron, I Rubinsky, M Ruspa, R Sacchi, A Salii, U Samson, G Sartorelli, AA Savin, DH Saxon, M Schioppa, P Schleper, WB Schmidke, V Schonberg, J Schwartz, F Sciulli, LM Shcheglova, R Shehzadi, S Shimizu, I Singh, IO Skillicorn, W Slominski, WH Smith, V Sola, A Solano, A Solomin, D Son, V Sosnovtsev, A Spiridonov, H Stadie, L Stanco, A Stern, TP Stewart, A Stifutkin, P Stopa, S Suchkov, G Susinno, L Suszycki, J Sztuk, D Szuba, J Szuba, AD Tapper, E Tassi, J Terron, T Theedt, H Tiecke, K Tokushuku, O Tomalak, J Tomaszewska, T Tsurugai, M Turcato, T Tymieniecka, M Vazquez, A Verbytskyi, V Viazlo, NN Vlasov, O Volynets, R Walczak, WAT Wan Abdullah, JJ Whitmore, J Whyte, M Wing, M Wlasenko, G Wolf, H Wolfe, K Wrona, S Yamada, Y Yamazaki, R Yoshida, C Youngman, AF Zarnecki, O Zenaiev, BO Zhautykov, N Zhmak, C Zhou, A Zichichi, M Zolko, DS Zotkin

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Scaled momentum spectra in deep inelastic scattering at HERA (vol 06, 009, 2010)

JOURNAL OF HIGH ENERGY PHYSICS (2010) ARTN 030

Authors:

H Abramowicz, I Abt, L Adamczyk, M Adamus, S Antonelli, P Antonioli, A Antonov, M Arneodo, V Aushev, Y Aushev, O Bachynska, A Bamberger, AN Barakbaev, G Barbagli, G Bari, F Barreiro, D Bartsch, M Basile, O Behnke, J Behr, U Behrens, L Bellagamba, A Bertolin, S Bhadra, M Bindi, C Blohm, T Bold, EG Boos, M Borodin, K Borras, D Boscherini, D Bot, SK Boutle, I Brock, E Brownson, R Brugnera, N Bruemmer, A Bruni, G Bruni, B Brzozowska, PJ Bussey, JM Butterworth, B Bylsma, A Caldwell, M Capua, R Carlin, CD Catterall, S Chekanov, J Chwastowski, J Ciborowski, R Ciesielski, L Cifarelli, F Cindolo, A Contin, AM Cooper-Sarkar, N Coppola, M Corradi, F Corriveau, M Costa, G D'Agostini, F Dal Corso, J de Favereau, J del Peso, RK Dementiev, S De Pasquale, M Derrick, RCE Devenish, D Dobur, BA Dolgoshein, AT Doyle, V Drugakov, LS Durkin, S Dusini, Y Eisenberg, PF Ermolov, A Eskreys, S Fang, S Fazio, J Ferrando, MI Ferrero, J Figiel, M Forrest, B Foster, S Fourletov, A Galas, E Gallo, A Garfagnini, A Geiser, I Gialas, LK Gladilin, D Gladkov, C Glasman, O Gogota, Yu A Golubkov, P Goettlicher, I Grabowska-Bold, J Grebenyuk, I Gregor, G Grigorescu, G Grzelak, C Gwenlan, T Haas, W Hain, R Hamatsu, JC Hart, H Hartmann, G Hartner, E Hilger, D Hochman, U Holm, R Hori, K Horton, A Huettmann, G Iacobucci, ZA Ibrahim, Y Iga, R Ingbir, M Ishitsuka, H-P Jakob, F Januschek, M Jimenez, TW Jones, M Juengst, I Kadenko, B Kahle, B Kamaluddin, S Kananov, T Kanno, U Karshon, F Karstens, II Katkov, M Kaur, P Kaur, A Keramidas, LA Khein, JY Kim, D Kisielewska, S Kitamura, R Klanner, U Klein, E Koffeman, D Kollar, P Kooijman, Ie Korol, IA Korzhavina, A Kotanski, U Koetz, H Kowalski, P Kulinski, O Kuprash, M Kuze, VA Kuzmin, A Lee, BB Levchenko, A Levy, V Libov, S Limentani, TY Ling, M Lisovyi, E Lobodzinska, W Lohmann, B Loehr, E Lohrmann, JH Loizides, KR Long, A Longhin, D Lontkovskyi, J Lukasik, O Yu Lukina, P Luzniak, J Maeda, S Magill, I Makarenko, J Malka, R Mankel, A Margotti, G Marini, JF Martin, A Mastroberardino, T Matsumoto, MCK Mattingly, I-A Melzer-Pellmann, S Miglioranzi, F Mohamad Idris, V Monaco, A Montanari, JD Morris, B Musgrave, K Nagano, T Namsoo, R Nania, D Nicholass, A Nigro, Y Ning, U Noor, D Notz, RJ Nowak, AE Nuncio-Quiroz, BY Oh, N Okazaki, K Oliver, K Olkiewicz, Yu Onishchuk, O Ota, K Papageorgiu, A Parenti, E Paul, JM Pawlak, B Pawlik, PG Pelfer, A Pellegrino, W Perlanski, H Perrey, K Piotrzkowski, P Plucinski, NS Pokrovskiy, A Polini, AS Proskuryakov, M Przybycien, A Raval, DD Reeder, B Reisert, Z Ren, J Repond, YD Ri, A Robertson, P Roloff, E Ron, I Rubinsky, M Ruspa, R Sacchi, A Salii, U Samson, G Sartorelli, AA Savin, DH Saxon, M Schioppa, S Schlenstedt, P Schleper, WB Schmidke, U Schneekloth, V Schoenberg, T Schoerner-Sadenius, J Schwartz, F Sciulli, LM Shcheglova, R Shehzadi, S Shimizu, I Singh, IO Skillicorn, W Slominski, WH Smith, V Sola, A Solano, A Solomin, D Son, V Sosnovtsev, A Spiridonov, H Stadie, L Stanco, A Stern, TP Stewart, A Stifutkin, P Stopa, S Suchkov, G Susinno, L Suszycki, J Sztuk, D Szuba, J Szuba, AD Tapper, E Tassi, J Terron, T Theedt, H Tiecke, K Tokushuku, O Tomalak, J Tomaszewska, T Tsurugai, M Turcato, T Tymieniecka, C Uribe-Estrada, M Vazquez, A Verbytskyi, V Viazlo, NN Vlasov, O Volynets, R Walczak, WAT Wan Abdullah, JJ Whitmore, J Whyte, L Wiggers, M Wing, M Wlasenko, G Wolf, H Wolfe, K Wrona, AG Yaguees-Molina, S Yamada, Y Yamazaki, R Yoshida, C Youngman, AF Zarnecki, L Zawiejski, O Zenaiev, W Zeuner, BO Zhautykov, N Zhmak, C Zhou, A Zichichi, M Zolko, DS Zotkin

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Measurement of J/ψ helicity distributions in inelastic photoproduction at HERA

Journal of High Energy Physics 2009:12 (2009)

Authors:

S Chekanov, M Derrick, S Magill, B Musgrave, D Nicholass, J Repond, R Yoshida, MCK Mattingly, P Antonioli, G Bari, L Bellagamba, D Boscherini, A Bruni, G Bruni, F Cindolo, M Corradi, G Iacobucci, A Margotti, R Nania, A Polini, S Antonelli, M Basile, M Bindi, L Cifarelli, A Contin, S De Pasquale, G Sartorelli, A Zichichi, D Bartsch, I Brock, H Hartmann, E Hilger, HP Jakob, J Müngst, AE Nuncio-Quiroz, E Paul, U Samson, V Schönberg, R Shehzadi, M Wlasenko, JD Morris, M Kaur, P Kaur, I Singh, M Capua, S Fazio, A Mastroberardino, M Schioppa, G Susinno, E Tassi, JY Kim, ZA Ibrahim, F Mohamad Idris, B Kamaluddin, WAT Wan Abdullah, Y Ning, Z Ren, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, K Olkiewicz, B Pawlik, P Stopa, L Zawiejski, L Adamczyk, T Bold, I Grabowska-Bold, D Kisielewska, J Lukasik, M Przybycién, L Suszycki, A Kotánski, W Slomínski, O Behnke, J Behr, U Behrens, C Blohm, K Borras, D Bot, R Ciesielski, N Coppola, S Fang, A Geiser, P Göttlicher, J Grebenyuk, I Gregor, T Haas, W Hain, A Hüttmann, F Januschek, B Kahle, II Katkov, U Klein, U Kötz, H Kowalski, M Lisovyi, E Lobodzinska, B Löhr

Abstract:

The J/ψ decay angular distributions have been measured in inelastic photo-production in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb-1. The range in photon-proton centre-of-mass energy, W, was 50 < W < 180 GeV. The J/ψ mesons were identified through their decay into muon pairs. The polar and azimuthal angles of the μ+ were measured in the J/ψ rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD. © SISSA 2009.

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Multi-leptons with high transverse momentum at HERA

Journal of High Energy Physics 2009:10 (2009)

Authors:

FD Aaron, H Abramowicz, I Abt, L Adamczyk, M Adamus, M Aldaya Martin, C Alexa, K Alimujiang, V Andreev, S Antonelli, P Antonioli, A Antonov, B Antunovic, M Arneodo, A Asmone, V Aushev, O Bachynska, S Backovic, A Baghdasaryan, A Bamberger, AN Barakbaev, G Barbagli, G Bari, F Barreiro, E Barrelet, W Bartel, D Bartsch, M Basile, K Begzsuren, O Behnke, J Behr, U Behrens, L Bellagamba, A Belousov, A Bertolin, S Bhadra, M Bindi, JC Bizot, C Blohm, T Bold, EG Boos, M Borodin, K Borras, D Boscherini, D Bot, V Boudry, SK Boutle, I Bozovic-Jelisavcic, J Bracinik, G Brandt, M Brinkmann, V Brisson, I Brock, E Brownson, R Brugnera, N Brümmer, D Bruncko, A Bruni, G Bruni, B Brzozowska, A Bunyatyan, G Buschhorn, PJ Bussey, JM Butterworth, B Bylsma, L Bystritskaya, A Caldwell, AJ Campbell, KB Cantun Avila, M Capua, R Carlin, F Cassol-Brunner, CD Catterall, K Cerny, V Cerny, S Chekanov, V Chekelian, A Cholewa, J Chwastowski, J Ciborowski, R Ciesielski, L Cifarelli, F Cindolo, A Contin, JG Contreras, AM Cooper-Sarkar, N Coppola, M Corradi, F Corriveau, M Costa, JA Coughlan, G Cozzika, J Cvach, G D'Agostini, JB Dainton, F Dal Corso, K Daum, M Deák, Y De Boer, J De Favereau

Abstract:

Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated luminosity of 0.94 fb-1. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100GeV while 1.94 ± 0.17 events are expected. Such events are not observed in e-p collisions for which 1.19 ± 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions. © SISSA 2009.

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Measurement of the longitudinal proton structure function at HERA

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 682:1 (2009) 8-22

Authors:

S Chekanov, M Derrick, S Magill, B Musgrave, D Nicholass, J Repond, R Yoshida, MCK Mattingly, P Antonioli, G Bari, L Bellagamba, D Boscherini, A Bruni, G Bruni, F Cindolo, M Corradi, G Iacobucci, A Margotti, R Nania, A Polini, S Antonelli, M Basile, M Bindi, L Cifarelli, A Contin, S De Pasquale, G Sartorelli, A Zichichi, D Bartsch, I Brock, H Hartmann, E Hilger, HP Jakob, M Jüngst, AE Nuncio-Quiroz, E Paul, U Samson, V Schönberg, R Shehzadi, M Wlasenko, NH Brook, GP Heath, JD Morris, M Kaur, P Kaur, I Singh, M Capua, S Fazio, A Mastroberardino, M Schioppa, G Susinno, E Tassi, JY Kim, ZA Ibrahim, FM Idris, B Kamaluddin, WAT Wan Abdullah, Y Ning, Z Ren, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, K Olkiewicz, B Pawlik, P Stopa, L Zawiejski, L Adamczyk, T Bołd, I Grabowska-Bołd, D Kisielewska, J Łukasik, M Przybycień, L Suszycki, A Kotański, W Słomiński, O Behnke, J Behr, U Behrens, C Blohm, K Borras, D Bot, R Ciesielski, N Coppola, S Fang, A Geiser, P Göttlicher, J Grebenyuk, I Gregor, T Haas, W Hain, A Hüttmann, F Januschek, B Kahle, II Katkov, U Klein, U Kötz, H Kowalski, M Lisovyi

Abstract:

The reduced cross sections for ep deep inelastic scattering have been measured with the ZEUS detector at HERA at three different centre-of-mass energies, 318, 251 and 225 GeV. From the cross sections, measured double differentially in Bjorken x and the virtuality, Q 2, the proton structure functions F L and F 2 have been extracted in the region 5 × 10 - 4 < x < 0.007 and 20 < Q 2 < 130 GeV 2. © 2009 Elsevier B.V.

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Prof Roman Walczak

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Scaled momentum spectra in deep inelastic scattering at HERA

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Scaled momentum spectra in deep inelastic scattering at HERA (vol 06, 009, 2010)

Authors:

Measurement of J/ψ helicity distributions in inelastic photoproduction at HERA

Authors:

Abstract:

Multi-leptons with high transverse momentum at HERA

Authors:

Abstract:

Measurement of the longitudinal proton structure function at HERA

Authors:

Abstract:

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Prof Roman Walczak

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Scaled momentum spectra in deep inelastic scattering at HERA

Authors:

Scaled momentum spectra in deep inelastic scattering at HERA (vol 06, 009, 2010)

Authors:

Measurement of J/ψ helicity distributions in inelastic photoproduction at HERA

Authors:

Abstract:

Multi-leptons with high transverse momentum at HERA

Authors:

Abstract:

Measurement of the longitudinal proton structure function at HERA

Authors:

Abstract: