Prof Roman Walczak: Publications

Development of a high power fibre laser for laser based electron beam diagnostics

EPAC 2008 - Contributions to the Proceedings (2008) 1359-1361

Authors:

L Corner, LJ Nevay, N Delerue, DF Howell, M Newman, R Walczak, GA Blair, ST Boogert

Abstract:

We present the latest results on the development of a high power fibre laser system for use in a linear collider laser-wire experiment. The laser consists of a solid state oscillator which can be synchronised to an external frequency reference, and two amplification stages in double clad doped fibre, giving 1μJ pulses in a burst mode suitable for a linear collider laser-wire system. This output is amplified in large mode area photonic crystal fibre to generate the high pulse energy necessary for Compton scattering without any deleterious nonlinear effects, whilst maintaining the high spatial mode quality and beam pointing stability of a fibre laser. These properties are essential for producing the sub-micron spot sizes required for the measurement of small particle beam sizes.

Hadronic final states and QCD: Summary

DIS 2008 - Proceedings of the 16th International Workshop on Deep-Inelastic Scattering and Related Topics (2008)

Authors:

T Gehrmann, G Grindhammer, V O'Dell, R Walczak

Abstract:

A summary of new experimental results and recent theoretical developments discussed in the "Hadronic Final States and QCD" working group is presented.

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Measurement of isolated photon production in deep-inelastic scattering at HERA

European Physical Journal C 54:3 (2008) 371-387

Authors:

FD 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, JC Bizot, MO Boenig, V Boudry, I Bozovic-Jelisavcic, J Bracinik, G Brandt, M Brinkmann, V Brisson, D Bruncko, FW Büsser, A Bunyatyan, G Buschhorn, L Bystritskaya, AJ Campbell, KB Cantun Avila, F Cassol-Brunner, K Cerny, V Cerny, V Chekelian, A Cholewa, JG Contreras, JA Coughlan, G Cozzika, J Cvach, JB Dainton, K Daum, M Deak, Y De Boer, B Delcourt, M Del Degan, J Delvax, A De Roeck, EA 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, PJW 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, BR Grell, G Grindhammer, S Habib, D Haidt, M Hansson, G Heinzelmann, C Helebrant, RCW Henderson, H Henschel, G Herrera, M Hildebrandt

Abstract:

The production of isolated photons in deep-inelastic scattering ep→eγX is measured with the H1 detector at HERA. The measurement is performed in the kinematic range of negative four-momentum transfer squared 450 GeV. The analysis is based on a total integrated luminosity of 227 pb-1. The production cross section of isolated photons with a transverse energy in the range 3

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Micron size laser-wire system at the ATF extraction line

EPAC 2008 - Contributions to the Proceedings (2008) 1065-1067

Authors:

A Aryshev, GA Blair, ST Boogert, G Boorman, A Bosco, L Deacon, P Karataev, D Howell, LJ Nevay, L Corner, N Delerue, B Foster, F Gannaway, M Newman, R Senanayake, R Walczak, H Hayano, N Terunuma, J Urakawa

Abstract:

The KEK Accelerator test facility (ATF) extraction line laser-wire system has recently been upgraded allowing the measurement of micron scale transverse size electron beams. We report on the hardware upgrades, including focusing lens, laser diagnostics and mechanical systems. The first measurements using the new system from recent operation at the ATF are presented.

Beauty photoproduction using decays into electrons at HERA

PHYSICAL REVIEW D 78:7 (2008) ARTN 072001

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, H-P Jakob, M Juengst, OM Kind, AE Nuncio-Quiroz, E Paul, U Samson, V Schoenberg, R Shehzadi, M Wlasenko, NH Brook, GP Heath, JD Morris, M Capua, S Fazio, A Mastroberardino, M Schioppa, G Susinno, E Tassi, JY Kim, ZA Ibrahim, B Kamaluddin, WAT Wan Abdullah, Y Ning, Z Ren, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, M Gil, K Olkiewicz, P Stopa, L Zawiejski, L Adamczyk, T Bold, I Grabowska-Bold, D Kisielewska, J Lukasik, M Przybycien, L Suszycki, A Kotanski, W Slominski, U Behrens, C Blohm, A Bonato, K Borras, R Ciesielski, N Coppola, S Fang, J Fourletova, A Geiser, P Goettlicher, J Grebenyuk, I Gregor, T Haas, W Hain, A Huettmann, F Januschek, B Kahle, II Katkov, U Klein, U Koetz, H Kowalski, E Lobodzinska, B Loehr, R Mankel, I-A Melzer-Pellmann, S Miglioranzi, A Montanari, T Namsoo, D Notz, A Parenti, L Rinaldi, P Roloff, I Rubinsky, R Santamarta, U Schneekloth, A Spiridonov, D Szuba, J Szuba, T Theedt, G Wolf, K Wrona, AG Yagues Molina, C Youngman, W Zeuner, V Drugakov, W Lohmann, S Schlenstedt, G Barbagli, E Gallo, PG Pelfer, A Bamberger, D Dobur, F Karstens, NN Vlasov, PJ Bussey, AT Doyle, W Dunne, M Forrest, M Rosin, DH Saxon, IO Skillicorn, I Gialas, K Papageorgiu, U Holm, R Klanner, E Lohrmann, P Schleper, T Schoerner-Sadenius, J Sztuk, H Stadie, M Turcato, C Foudas, C Fry, KR Long, AD Tapper, T Matsumoto, K Nagano, K Tokushuku, S Yamada, Y Yamazaki, AN Barakbaev, EG Boos, NS Pokrovskiy, BO Zhautykov, V Aushev, M Borodin, I Kadenko, A Kozulia, V Libov, M Lisovyi, D Lontkovskyi, I Makarenko, Iu Sorokin, A Verbytskyi, O Volynets, D Son, J de Favereau, K Piotrzkowski, F Barreiro, C Glasman, M Jimenez, L Labarga, J del Peso, E Ron, M Soares, J Terron, M Zambrana, F Corriveau, C Liu, J Schwartz, R Walsh, C Zhou, T Tsurugai, A Antonov, BA Dolgoshein, D Gladkov, V Sosnovtsev, A Stifutkin, S Suchkov, RK Dementiev, PF Ermolov, LK Gladilin, Yu A Golubkov, LA Khein, IA Korzhavina, VA Kuzmin, BB Levchenko, O Yu Lukina, AS Proskuryakov, LM Shcheglova, DS Zotkin, I Abt, A Caldwell, D Kollar, B Reisert, WB Schmidke, G Grigorescu, A Keramidas, E Koffeman, P Kooijman, A Pellegrino, H Tiecke, M Vazquez, L Wiggers, N Bruemmer, B Bylsma, LS Durkin, A Lee, TY Ling, PD Allfrey, MA Bell, AM Cooper-Sarkar, RCE Devenish, J Ferrando, B Foster, K Korcsak-Gorzo, K Oliver, A Robertson, C Uribe-Estrada, R Walczak, A Bertolin, F Dal Corso, S Dusini, A Longhin, L Stanco, P Bellan, R Brugnera, R Carlin, A Garfagnini, S Limentani, BY Oh, A Raval, J Ukleja, JJ Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, JE Cole, JC Hart, H Abramowicz, R Ingbir, S Kananov, A Levy, A Stern, M Kuze, J Maeda, R Hori, S Kagawa, N Okazaki, S Shimizu, T Tawara, R Hamatsu, H Kaji, S Kitamura, O Ota, YD Ri, M Costa, MI Ferrero, V Monaco, R Sacchi, A Solano, M Arneodo, M Ruspa, S Fourletov, JF Martin, TP Stewart, SK Boutle, JM Butterworth, C Gwenlan, TW Jones, JH Loizides, M Wing, B Brzozowska, J Ciborowski, G Grzelak, P Kulinski, P Luzniak, J Malka, RJ Nowak, JM Pawlak, T Tymieniecka, A Ukleja, AF Zarnecki, M Adamus, P Plucinski, Y Eisenberg, D Hochman, U Karshon, E Brownson, T Danielson, A Everett, D Kcira, DD Reeder, P Ryan, AA Savin, WH Smith, H Wolfe, S Bhadra, CD Catterall, Y Cui, G Hartner, S Menary, U Noor, J Standage, J Whyte

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Prof Roman Walczak

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Sub department

Development of a high power fibre laser for laser based electron beam diagnostics

Authors:

Abstract:

Hadronic final states and QCD: Summary

Authors:

Abstract:

Measurement of isolated photon production in deep-inelastic scattering at HERA

Authors:

Abstract:

Micron size laser-wire system at the ATF extraction line

Authors:

Abstract:

Beauty photoproduction using decays into electrons at HERA

Authors:

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Prof Roman Walczak

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Development of a high power fibre laser for laser based electron beam diagnostics

Authors:

Abstract:

Hadronic final states and QCD: Summary

Authors:

Abstract:

Measurement of isolated photon production in deep-inelastic scattering at HERA

Authors:

Abstract:

Micron size laser-wire system at the ATF extraction line

Authors:

Abstract:

Beauty photoproduction using decays into electrons at HERA

Authors: