Zobrazeno 1 - 10
of 155
pro vyhledávání: '"R. Neuhausen"'
Autor:
J.M. Friedrich, C. Ayerbe Gayoso, D. Baumann, Th. Walcher, M. O. Distler, Luca Doria, D. S. Dale, M. Potokar, M. Ding, M. Weis, L. Nungesser, Harald Merkel, U. Müller, Tancredi Botto, R. Neuhausen, A. Karabarbounis, R. Böhm, Patrick Achenbach, A. Christopoulou, Nikolaos Sparveris, I. Nakagawa, S. Stiliaris, A. Piegsa, Costas N. Papanicolas, Jan C. Bernauer, S. Stave, Damir Bosnar, Michael Seimetz, Aron M. Bernstein, J. Pochodzalla, Simon Širca, Mihael Makek
Publikováno v:
Physics Letters B. 651:102-107
We report new precise p ( e → , e ′ p ) π 0 measurements at the peak of the Δ + ( 1232 ) resonance at Q 2 = 0.20 ( GeV / c ) 2 performed at the Mainz Microtron (MAMI). The new data are sensitive to both the electric (E2) and the Coulomb (C2) qu
Autor:
D. Elsner, A. Süle, P. Barneo, P. Bartsch, D. Baumann, J. Bermuth, R. Böhm, D. Bosnar, M. Ding, M. Distler, D. Drechsel, I. Ewald, J. Friedrich, J. M. Friedrich, S. Grözinger, P. Jennewein, S. Kamalov, F. H. Klein, M. Kohl, K. W. Krygier, H. Merkel, P. Merle, U. Müller, R. Neuhausen, Th. Pospischil, M. Potokar, G. Rosner, H. Schmieden, M. Seimetz, O. Strähle, L. Tiator, Th. Walcher, M. Weis
Publikováno v:
The European Physical Journal A. 27:91-97
The reaction p(e,e'p)pi^0 has been studied at Q^2=0.2 (GeV/c)^2 in the region of W=1232 MeV. From measurements left and right of q, cross section asymmetries \rho_LT have been obtained in forward kinematics \rho_LT(\theta_\pi^0=20deg) = (-11.68 +/- 2
Autor:
Ernst-Wilhelm Otten, R. Skibiński, Werner Heil, P. Merle, Michael Seimetz, Ingo Sick, Hiroyuki Kamada, Simon Širca, R. Böhm, M. Weis, Ch. Normand, M. Kohl, A. Nogga, J. Bermuth, M. Potokar, Th. Walcher, H. Schmieden, W. Glöckle, M. Hauger, J.M. Friedrich, Jörg Schmiedeskamp, R. Neuhausen, M. O. Distler, Harald Merkel, J. Jourdan, Jacek Golak, Glen A. Warren, H. Wöhrle, A. Klein, D. Baumann, M. Zeier, M. Ding, Daniela Rohe, P. Bartsch, Th. Pospischil, C. Carasco, D. Bosnar, K. W. Krygier, G. Testa, U. Müller, Henryk Witała, P. Jennewein
Publikováno v:
Physics Letters B. 559(1-2):41-48
Asymmetries in quasi-elastic 3 He ( e → , e ′ p ) have been measured at a momentum transfer of 0.67 (GeV/ c ) 2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body curr
Autor:
A. Kozlov, Glen A. Warren, P. Bartsch, J. Sanner, D. Baumann, M. Ding, Ronald Ransome, G. Rosner, K. W. Krygier, Michael Seimetz, Ingo Sick, S. Grözinger, Klemen Bohinc, M. Kahrau, Achim Richter, M. Weis, D. Elsner, O. Strähle, R. Geiges, Justin I. McIntyre, R. Neuhausen, F. Klein, N. Clawiter, U. Müller, I. Ewald, X. Q. Wu, P. König, S. Derber, Th. Walcher, A. Wagner, J.M. Friedrich, M. Hamdorf, P. Jennewein, R. Böhm, S. Hedicke, Th. Pospischil, S. Malov, A. Süle, P. Merle, M. Potokar, E. A. J. M. Offermann, A. Liesenfeld, H. Schmieden, Harald Merkel, J. Jourdan, H. Kramer, J. Lac, M. O. Distler
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 483:726-733
Large-area horizontal drift chambers have been built for use in a proton polarimeter. A gas mixture of 20% argon and 80% ethane is used. The left–right assignment is achieved by measuring the difference of the signals induced on neighboring potenti
Autor:
Glen A. Warren, T. Petitjean, P. Bartsch, Ingo Sick, H. Schmieden, J.M. Friedrich, I. Ewald, Harald Merkel, Ch. Normand, J. Jourdan, D. Baumann, M. O. Distler, Klemen Bohinc, G. Rosner, G. Kubon, U. Mueller, Simon Širca, M. Hauger, M. Weis, M. ZeierJ. Zhao, W.U. Boeglin, R. Boehm, P. Jennewein, C. Carasco, P. Trueb, H. Woehrle, Daniela Rohe, Th. Pospischil, H. Anklin, K. W. Krygier, A. Wagner, A. Honegger, R. Neuhausen, Th. Walcher, B. Zihlmann, M. Potokar, A. Liesenfeld, M. Kahrau
Publikováno v:
Physics Letters B. 524:26-32
Precise data on the neutron magnetic form factor G_{mn} have been obtained with measurements of the ratio of cross sections of D(e,e'n) and D(e,e'p) up to momentum transfers of Q^2 = 0.9 (GeV/c)^2. Data with typical uncertainties of 1.5% are presente
Autor:
I. Ewald, Justin I. McIntyre, R. D. Ransome, Glen A. Warren, U. Müller, H. Schmieden, Th. Walcher, J.M. Friedrich, Michael Seimetz, Ingo Sick, D. Baumann, Harald Merkel, G. Rosner, Daniela Rohe, F. Klein, P. Bartsch, A. Wagner, J. Lac, Klemen Bohinc, S. Hedicke, M. O. Distler, M. Kahrau, P. Merle, R. Böhm, S. S. Kamalov, S. Širca, M. Ding, M. Weis, D. Elsner, A. Süle, R. Geiges, J. Bermuth, M. Potokar, L. Tiator, S. Derber, P. Jennewein, K. W. Krygier, Th. Pospischil, R. Neuhausen, A. Liesenfeld, Dieter Drechsel
Publikováno v:
Physical Review Letters. 86:2959-2962
The recoil proton polarization has been measured in the $p(\stackrel{\ensuremath{\rightarrow}}{e}{,e}^{\ensuremath{'}}\stackrel{\ensuremath{\rightarrow}}{p}){\ensuremath{\pi}}^{0}$ reaction in parallel kinematics around $W\phantom{\rule{0ex}{0ex}}=\p
Autor:
Ronald Ransome, Glen A. Warren, James J. Kelly, D. Baumann, J.M. Friedrich, G. Rosner, Daniela Rohe, Michael Seimetz, C. Glashausser, Ingo Sick, Javier R. Vignote, Th. Pospischil, M. Weis, K. W. Krygier, R. Neuhausen, A. Wagner, S. Derber, Steffen Strauch, U. Müller, Klemen Bohinc, A. Liesenfeld, J. Bermuth, M. Kohl, Th. Walcher, R. Böhm, A. Kozlov, G. J. Kumbartzki, J. Lac, M. Hauger, P. Jennewein, M. O. Distler, M. Ding, Sonja Dieterich, P. Bartsch, Damir Bosnar, I. Ewald, J. Jourdan, J. M. Udías, H. Schmieden, Ronald Gilman, Harald Merkel
Publikováno v:
Physics Letters B. 500:47-52
Polarization transfer in the 4He ( e → ,e′ p → ) 3 H reaction at a Q2 of 0.4 (GeV/c)2 was measured at the Mainz Microtron MAMI. The ratio of the transverse to the longitudinal polarization components of the ejected protons was compared with the
Autor:
Aron M. Bernstein, H. Schmieden, J.M. Friedrich, M. Kahrau, K. W. Krygier, J. M. Friedrich, Simon Širca, U. Müller, A. Wagner, Harald Merkel, Thomas Pospischil, D. Baumann, M. O. Distler, R. Neuhausen, I. Ewald, Thomas Walcher, A. Kozlov, Michael Kohl, R. Böhm, Klemen Bohinc, M. M. Pavan, P. Merle, N. Clawiter, M. Weis, M. Ding, P. Bartsch, G. Rosner, Daniela Rohe, S. Derber, J. Bermuth, M. Potokar, A. Liesenfeld
Publikováno v:
Physics Letters B. 499:238-244
First data on coherent threshold \pi^0 electroproduction from the deuteron taken by the A1 Collaboration at the Mainz Microtron MAMI are presented. At a four-momentum transfer of q^2=-0.1 GeV^2/c^2 the full solid angle was covered up to a center-of-m
Autor:
M. Mühlbauer, A. Liesenfeld, T. Großmann, S. Buttazzoni, T. Petitjean, M. Kohl, A. Ebbes, U. Müller, M. Ebert, M. O. Distler, Simon Širca, Th. Walcher, Klemen Bohinc, K. Merle, J. Bermuth, P. Merle, Daniela Rohe, Ingo Sick, N. Clawiter, A. Wagner, M. Hauger, E. W. Otten, I. Ewald, P. Jennewein, J.M. Friedrich, M. Kahrau, P. Bartsch, G. Kubon, K. W. Krygier, M. Zeier, M. Ding, J. Jourdan, R. Geiges, Jürgen Becker, T. Caprano, M. Potokar, R. Surkau, R. Böhm, M. Weis, H. Schmieden, R. Neuhausen, S. Derber, Harald Merkel, H. Wöhrle, Glen A. Warren, D. Baumann, G. Rosner, W. Heil, A. Klein, Th. Pospischil, A. Honegger, A. Deninger
Publikováno v:
Physical Review Letters. 83:4257-4260
We have measured the neutron electric form factor ${G}_{\mathrm{en}}$ via ${}^{3}\stackrel{\ensuremath{\rightarrow}}{\mathrm{He}}(\stackrel{\ensuremath{\rightarrow}}{e}{,e}^{\ensuremath{'}}n)\mathrm{pp}$ at ${Q}^{2}\phantom{\rule{0ex}{0ex}}=\phantom{
Autor:
A. Liesenfeld, A.W. Richter, S. Širca, K.I. Blomqvist, W.U. Boeglin, K. Bohinc, R. Böhm, M. Distler, D. Drechsel, R. Edelhoff, I. Ewald, J. Friedrich, J.M. Friedrich, R. Geiges, M. Kahrau, M. Korn, K.W. Krygier, V. Kunde, H. Merkel, K. Merle, U. Müller, R. Neuhausen, T. Pospischil, M. Potokar, A. Rokavec, G. Rosner, P. Sauer, S. Schardt, H. Schmieden, L. Tiator, B. Vodenik, A. Wagner, Th. Walcher, S. Wolf
Publikováno v:
Physics Letters B. 468:20-27
The reaction p(e,e'pi+)n was measured at the Mainz Microtron MAMI at an invariant mass of W=1125 MeV and four-momentum transfers of Q^2=0.117, 0.195 and 0.273 (GeV/c)^2. For each value of Q^2, a Rosenbluth separation of the transverse and longitudina