Zobrazeno 1 - 10
of 273
pro vyhledávání: '"R.O. Owens"'
Autor:
R.O. Owens, K. Livingston, A. Reiter, J. C. McGeorge, C. Paterson, P. Grabmayr, P.S. Lumsden, E. Heid, Jrm Annand, Anthony W. Thomas, D. I. Glazier, I.J.D. McGregor, A. Clarkson, D. P. Watts
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 664:132-139
The angular distribution of the linearly polarised photon beam produced by coherent bremsstrahlung from an aligned diamond radiator has been measured at the MAMI A2 tagged photon facility. The measurements were made with a prototype position sensitiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2423d3c66b44522f5abd2bddd3c10cae
https://doi.org/10.1016/j.nima.2011.10.053
https://doi.org/10.1016/j.nima.2011.10.053
Autor:
Jason Brudvik, V. Metag, Yasser Maghrbi, L.V. Filʼkov, B. Krusche, A. Starostin, E. F. McNicoll, P. Aguar Bartolomé, J. Robinson, B. Demissie, M. Martinez-Fabregate, F. Pheron, D. Werthmüller, V. Lisin, P. Pedroni, S. Schumann, R. W. Novotny, S. Cherepnya, D. P. Watts, O. Jahn, I. Zamboni, D. I. Sober, C. M. Tarbert, H. J. Arends, Michaela Thiel, V. L. Kashevarov, R. Kondratiev, I. M. Suarez, D. Mekterovic, P. Drexler, Sasa Micanovic, M. Ostrick, M. Kotulla, K. Bantawa, G. Rosner, L. K. Akasoy, T. Rostomyan, V. S. Bekrenev, D. M. Manley, M. Korolija, I. Supek, A. N. Mushkarenkov, Anthony W. Thomas, D. I. Glazier, D. Hornidge, A. Koulbardis, A. Knezevic, R.O. Owens, K. Livingston, S. N. Prakhov, E. J. Downie, F. Zehr, I. J. D. MacGregor, W. J. Briscoe, B. Lemmer, S. P. Kruglov, T.C. Jude, J. C. McGeorge, R. Beck, M. Unverzagt, A. Fix, H. Berghäuser, A. Nikolaev, A. Polonski, B. M. K. Nefkens, J. R. M. Annand, E. Heid, M. Dieterle, D. Branford, A. Braghieri
Publikováno v:
Physics Letters B. 701:562-567
The Dalitz decay η→γe+e− has been measured using the combined Crystal Ball and TAPS photon detector setup at the electron accelerator MAMI-C. Compared to the most recent transition form-factor measurement in the e+e− channel, statistics have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d628ad28eb3a1ec14b85d06d705ed745
https://doi.org/10.1016/j.physletb.2011.06.069
https://doi.org/10.1016/j.physletb.2011.06.069
Autor:
D. P. Watts, P. Grabmayr, J. C. McGeorge, D. I. Glazier, D. Branford, G. Rosner, J. R. M. Annand, R. Beck, R.O. Owens, K. Livingston, I. J. D. MacGregor
Publikováno v:
Physics Letters B. 647:88-92
The sensitivity of the C 12 ( γ → , pd ) reaction to photon linear polarisation has been determined at MAMI, giving the first measurement of the reaction for a nucleus heavier than 3He. Photon asymmetries and cross sections were measured for E γ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aec13d0740618eeda6befcf4caeb8714
https://doi.org/10.1016/j.physletb.2007.02.013
https://doi.org/10.1016/j.physletb.2007.02.013
Publikováno v:
The European Physical Journal A. 30:461-467
A 96-element plastic-scintillator detector array has been constructed to improve the energy resolution and tagged-photon flux over a moveable energy range of up to 60MeV in the Glasgow photon tagging spectrometer at Mainz. Test results are presented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89b4e124acbe6e776c5f50ea3d0aeffc
https://doi.org/10.1140/epja/i2006-10130-9
https://doi.org/10.1140/epja/i2006-10130-9
Autor:
Ulrich Mosel, M. Pfeiffer, I. J. D. MacGregor, J. C. McGeorge, F. Bloch, V. Metag, R. W. Novotny, R. Sanderson, J. Ahrens, B. Krusche, S. Schadmand, J. R. M. Annand, D. P. Watts, S. Janssen, D. Hornidge, L. S. Fog, J. Lehr, R. Beck, R.O. Owens, J. G. Messchendorp, M. Kotulla
Publikováno v:
The European Physical Journal A. 22:277-291
Photoproduction of neutral pions from nuclei (carbon, calcium, niobium, lead) has been studied for incident-photon energies from 200 MeV to 800 MeV with the TAPS detector using the Glasgow photon tagging spectrometer at the Mainz MAMI accelerator. Da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0675130b24253da45aac39d2eee5a25a
https://doi.org/10.1140/epja/i2004-10033-9
https://doi.org/10.1140/epja/i2004-10033-9
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 211:465-486
Spectral distributions for coherent and incoherent bremsstrahlung produced by electrons on thin diamond radiators are calculated accurately by a Monte Carlo procedure. Realistic descriptions of the electron beam and the physical processes within the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15879d2061ad4421f7d88fa6cdbeaa22
https://doi.org/10.1016/s0168-583x(03)01420-4
https://doi.org/10.1016/s0168-583x(03)01420-4
Autor:
M. Kotulla, M. Wolf, V. Kuhr, A. Schmidt, B. Krusche, F. Wissmann, R. Beck, J. Weiß, R. Leukel, R.O. Owens, U. Siodlaczek, F. Rambo, V. Kleber, H. Ströher, V. Metag, V. Hejny, P. Achenbach, V. Olmos de León
Publikováno v:
The European physical journal / A 16, 275-284 (2003). doi:10.1140/epja/i2002-10085-9
Quasi-free photoproduction of eta-mesons from the deuteron has been measured at the tagged photon facility of the Mainz microtron MAMI with the photon spectrometer TAPS for incident photon energies from the production threshold at 630 MeV up to 820 M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f02044464354de67ca79835524ea698
https://doi.org/10.1140/epja/i2002-10085-9
https://doi.org/10.1140/epja/i2002-10085-9
Autor:
R.O. Owens, M. Yuly, W. W. Sapp, E. R. Kinney, C. Maher, T. Soos, June Matthews, J. Mittelstaedt
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 488:262-270
The dependence on atomic number Z of commonly used formulae for calculating electron bremsstrahlung spectra is tested by making measurements of d(γ,p)n cross-sections using aluminum and tungsten radiators for 165 MeV incident electrons. The ratio of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd23fed9feae160aeeecefcc14b6e5f5
https://doi.org/10.1016/s0168-9002(02)00470-9
https://doi.org/10.1016/s0168-9002(02)00470-9
Publikováno v:
Physics Letters B. 526:287-294
Differential and total cross sections for coherent pi0-photoproduction from 12C, 40Ca, 93Nb and Pb targets have been measured throughout the region of the Delta(1232)-resonance. The experiments were performed with the TAPS-detector at the Mainz accel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c00ad0dc2e045232de77f8f883ca609
https://doi.org/10.1016/s0370-2693(01)01503-9
https://doi.org/10.1016/s0370-2693(01)01503-9
Autor:
M. Unverzagt, A. Knezevic, A. Polonski, R. F. B. Codling, A. Starostin, C. M. Tarbert, S. Schadmand, R.O. Owens, K. Livingston, L. Zana, G. Rosner, P. Grabmayr, D. Branford, T. Rostomyan, H. J. Arends, D. P. Watts, J. C. McGeorge, E. J. Downie, Volker Metag, I. J. D. MacGregor, V. S. Bekrenev, V. L. Kashevarov, M. Lang, E. Heid, F. Zehr, V. Lisin, W. J. Briscoe, D. Mekterovic, P. Aguar, A. Nikolaev, O. Jahn, P. Pedroni, D. Krambrich, D. M. Manley, M. Korolija, K Foehl, Jason Brudvik, R. Kondratiev, M. Rost, I. Supek, S. Cherepnya, S. Schumann, R. W. Novotny, R. Beck, J. Ahrens, M. Martinez, J. W. Price, A. Braghieri, R. Gregor, J. R. M. Annand, B. M. K. Nefkens, D. I. Glazier, D. Hornidge, M. Kotulla, B. Boillat, D. I. Sober, Th. Walcher, S. Lugert, S. N. Prakhov, Andy Thomas, B. Krusche
Publikováno v:
Physical Review Letters. 112
Information on the size and shape of the neutron skin on (208)Pb is extracted from coherent pion photoproduction cross sections measured using the Crystal Ball detector together with the Glasgow tagger at the MAMI electron beam facility. On exploitat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8900322fd0906f2e458abfa0ab82510
https://doi.org/10.1103/physrevlett.112.242502
https://doi.org/10.1103/physrevlett.112.242502