Prof Roman Walczak: Publications

Multiplicity dependence of transverse momentum spectra in pp,p̄p, dd and αα collisions at ISR energies

Physics Letters B Elsevier 183:2 (1987) 227-231

Authors:

A Breakstone, R Campanini, G Claesson, HB Crawley, M Cuffiani, GM Dallavalle, MM Deninno, K Doroba, D Drijard, F Fabbri, A Firestone, MA Faessler, HG Fischer, H Floege, SY Fung, H Frehse, S Garpman, W Geist, L Gesswein, G Giacomelli, R Gokieli, M Gorbics, M Gorski, CR Gruhn, P Hanke, M Heiden, W Herr, D Isenhower, TJ Ketel, EE Kluge, JW Lamsa, T Lohse, I Lund, R Mankel, WT Meyer, T Nakada, I Otterlund, M Panter, H Pugh, A Putzer, K Rauschnabel, B Rensch, F Rimondi, M Schmelling, L Schroeder, GP Siroli, R Sosnowski, E Stenlund, TJM Symons, M Szczekowski, R Szwed, O Ullaland, R Walczak, D Wegener, M Wunsch

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The influence of gas composition, cathode material and geometrical parameters on the operation of a thin multiwire chamber working at high amplification

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 253:2 (1987) 264-272

Authors:

Krzysztof Genser, Roman Walczak

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Measurement of the photon structure function F2^ψ at Q² from 7 to 70 (GeV/c)²

Zeitschrift für Physik C Particles and Fields 31:4 (1986) 527-535

Authors:

M Althoff, W Braunschweig, R Gerhards, FJ Kirschfink, HU Martyn, P Rosskamp, W Wallraff, B Bock, J Eisenmann, HM Fischer, H Hartmann, W Hillen, A Jocksch, H Kolanoski, H Kück, V Mertens, R Wedemeyer, B Foster, E Bernardi, Y Eisenberg, A Eskreys, K Gather, H Hultschig, P Joos, B Klima, H Kowalski, A Ladage, B Löhr, D Lueke, P Mättig, D Notz, D Revel, E Ronat, D Trines, T Tymieniecka, R Walczak, G Wolf, W Zeuner, E Hilger, T Kracht, HL Krasemann, J Krüger, E Lohrmann, G Poelz, KU Pösnecker, DM Binnie, PJ Dornan, DA Garbutt, C Jenkins, WG Jones, JK Sedgbeer, D Su, J Thomas, WATW Abdullah, F Barreiro, E Ros, MG Bowler, P Bull, RJ Cashmore, P Dauncey, R Devenish, G Heath, DJ Mellor, SL Lloyd, GE Forden, JC Hart, DK Hasell, DH Saxon, S Brandt, M Dittmar, M Holder, L Labarga, B Neumann, U Karshon, G Mikenberg, A Montag, R Mir, A Shapira, G Yekutieli, G Baranko, A Caldwell, M Cherney, JM Izen, S Ritz, D Strom, M Takashima, H Venkataramania, E Wicklund, SL Wu, G Zobernig

Abstract:

We have measured the process e+e-→e+e-+hadrons, where one of the scattered electrons was detected at large angles, with Q2 ranging from 7 to 70 (VeV/c)2. The photon structure function F2γ(x, Q2) was determined at an average Q2 of 23 (GeV/c)2. The measurements were compared to theoretical predictions of the Quark Parton Model and Quantum Chromodynamics. In both models a hadronic part was added. Within the errors the data are in agreement with the QPM using quark masses of 300 MeV/c2 for the light quarks. The data also agree with a QCD calculation including higher order corrections. A fit yielded a {Mathematical expression} value of 140-65+190 MeV, where the errors include statistical and systematic uncertainties. © 1986 Springer-Verlag.

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Measurement of the radiative width of the A2(1320) in two-photon interactions

Zeitschrift für Physik C Particles and Fields 31:4 (1986) 537-543

Authors:

M Althoff, W Braunschweig, R Gerhards, FJ Kirschfink, HU Martyn, P Rosskamp, W Wallraff, B Bock, J Eisenmann, HM Fischer, H Hartmann, A Jocksch, H Kolanoski, H Kück, V Mertens, R Wedemeyer, B Foster, E Bernardi, Y Eisenberg, A Eskreys, K Gather, H Hultschig, P Joos, B Klima, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, D Revel, E Ronat, D Trines, T Tymieniecka, R Walczak, G Wolf, W Zeuner, E Hilger, T Kracht, HL Krasemann, J Krüger, E Lohrmann, G Poelz, KU Pösnecker, DM Binnie, PJ Dornan, DA Garbutt, C Jenkins, WG Jones, JK Sedgbeer, D Su, J Thomas, WAT Wan Abdullah, F Barreiro, E Ros, MG Bowler, P Bull, RJ Cashmore, P Dauncey, R Devenish, G Heath, D Mellor, P Ratoff, SL Lloyd, GE Forden, JC Hart, DK Hasell, DH Saxon, S Brandt, M Holder, L Labarga, B Neumann, U Karshon, G Mikenberg, R Mir, A Montag, A Shapira, G Yekutieli, G Baranko, A Caldwell, M Cherney, JM Izen, S Ritz, D Strom, M Takashima, E Wicklund, SL Wu, G Zonering

Abstract:

The reaction e+e-→e+e- A2 (1320) has been observed by detecting the decay A2→π+,π-π0. The two-photon width of the A2 has been measured to be G{cyrillic}(A2→γγ)=(0.09±0.27 (stat)±0.16 (syst)) keV. The cross section σ(γγ→π+,π-π0 has been determined outside the A2 resonance region. © 1986 Springer-Verlag.

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Composition of particles emitted at largepT and medium angles inpp, dd, andαα collisions at the CERN intersecting storage rings

Zeitschrift für Physik C Particles and Fields Springer Nature 30:4 (1986) 507-512

Authors:

A Breakstone, G Claesson, HB Crawley, GM Dallavalle, K Doroba, D Drijard, F Fabbri, A Firestone, MA Faessler, HG Fischer, SY Fung, S Garpman, W Geist, G Giacomelli, R Gokieli, M Gorbics, CR Gruhn, P Hanke, M Heiden, W Herr, TJ Ketel, EE Kluge, JW Lamsa, T Lohse, I Lund, R Mankel, WT Meyer, G Mornacchi, T Nakada, I Otterlund, M Panter, H Pugh, A Putzer, K Rauschnabel, B Rensch, F Rimondi, M Schmelling, GP Siroli, R Sosnowski, E Stenlund, M Szczekowski, R Szwed, O Ullaland, R Walczak, D Wegener, M Wunsch

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Prof Roman Walczak

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Multiplicity dependence of transverse momentum spectra in pp,p̄p, dd and αα collisions at ISR energies

Authors:

The influence of gas composition, cathode material and geometrical parameters on the operation of a thin multiwire chamber working at high amplification

Authors:

Measurement of the photon structure function F2^ψ at Q² from 7 to 70 (GeV/c)²

Authors:

Abstract:

Measurement of the radiative width of the A2(1320) in two-photon interactions

Authors:

Abstract:

Composition of particles emitted at largepT and medium angles inpp, dd, andαα collisions at the CERN intersecting storage rings

Authors:

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Prof Roman Walczak

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Multiplicity dependence of transverse momentum spectra in pp,p̄p, dd and αα collisions at ISR energies

Authors:

The influence of gas composition, cathode material and geometrical parameters on the operation of a thin multiwire chamber working at high amplification

Authors:

Measurement of the photon structure function F2ψ at Q2 from 7 to 70 (GeV/c)2

Authors:

Abstract:

Measurement of the radiative width of the A2(1320) in two-photon interactions

Authors:

Abstract:

Composition of particles emitted at largepT and medium angles inpp, dd, andαα collisions at the CERN intersecting storage rings

Authors:

Measurement of the photon structure function F2^ψ at Q² from 7 to 70 (GeV/c)²