Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Pavan, M. M."'
Autor:
Jia, Y., Gorringe, T. P., Hasinoff, M. D., Kovash, M. A., Ojha, M., Pavan, M. M., Tripathi, S., Zolnierczuk, P. A.
Publikováno v:
Phys.Rev.Lett.101:102301,2008
We report measurements of the $\pi^- p \to \pi^o n$ differential cross sections at six momenta (104-143 MeV/c) and four angles (0-40 deg) by detection of $\gamma$-ray pairs from $\pi^o \to \gamma \gamma$ decays using the TRIUMF RMC spectrometer. This
Externí odkaz:
http://arxiv.org/abs/0804.1531
Autor:
Weis, M., Bartsch, P., Baumann, D., Bermuth, J., Bernstein, A. M., Bohinc, K., Böhm, R., Ding, M., Distler, M. O., Ewald, I., Friedrich, J. M., Friedrich, J., Kahrau, M., Kohl, M., Krygier, K. W., Liesenfeld, A., Merkel, H., Merle, P., Müller, U., Neuhausen, R., Pavan, M. M., Pospischil, Th., Potokar, M., Rosner, G., Schmieden, H., Seimetz, M., Širca, S., Wagner, A., Walcher, Th.
Publikováno v:
Eur.Phys.J.A38:27-33,2008
The differential cross sections \sigma_0=\sigma_T+\epsilon \sigma_L, \sigma_{LT}, and \sigma_{TT} of \pi^0 electroproduction from the proton were measured from threshold up to an additional center of mass energy of 40 MeV, at a value of the photon fo
Externí odkaz:
http://arxiv.org/abs/0705.3816
Autor:
Denz, H., Amaudruz, P., Brack, J. T., Breitschopf, J., Camerini, P., Clark, J. L., Clement, H., Felawka, L., Fragiacomo, E., Gibson, E. F., Grion, N., Hofman, G. J., Jamieson, B., Mathie, E. L., Meier, R., Moloney, G., Ottewell, D., Patarakin, O., Patterson, J. D., Pavan, M. M., Piano, S., Raywood, K., Ristinen, R. A., Rui, R., Sevior, M. E., Smith, G. R., Stahov, J., Tacik, R., Wagner, G. J., von Wrochem, F., Yeomans, D. M.
Publikováno v:
Phys.Lett.B633:209-213,2006
Differential cross sections for pi- p and pi+ p elastic scattering were measured at five energies between 19.9 and 43.3 MeV. The use of the CHAOS magnetic spectrometer at TRIUMF, supplemented by a range telescope for muon background suppression, prov
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0512006
Autor:
Meier, R., Cröni, M., Bilger, R., Brandt, B. van den, Breitschopf, J., Clement, H., Comfort, J. R., Denz, H., Erhardt, A., Föhl, K., Friedman, E., Gräter, J., Hautle, P., Hofman, G. J., Konter, J. A., Mango, S., Pätzold, J., Pavan, M. M., Wagner, G. J., von Wrochem, F.
Publikováno v:
Phys.Lett.B588:155-162,2004
Analyzing powers of pion-proton elastic scattering have been measured at PSI with the Low Energy Pion Spectrometer LEPS as well as a novel polarized scintillator target. Angular distributions between 40 and 120 deg (c.m.) were taken at 45.2, 51.2, 57
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0402018
Publikováno v:
Phys.Rev.C69:035213,2004
We present results from a comprehensive partial-wave analysis of pi+-p elastic scattering and charge-exchange data, covering the region from threshold to 2.1 GeV in the lab pion kinetic energy, employing a coupled-channel formalism to simultaneously
Externí odkaz:
http://arxiv.org/abs/nucl-th/0311089
Publikováno v:
PiN Newslett. 16 (2002) 110-115
A new result for the pion nucleon Sigma term from a George Washington University/TRIUMF group analysis of pion nucleon data is presented. The value Sigma=79$\pm$7 MeV was obtained, compared to the canonical value 64$\pm$8 MeV found by Koch. The diffe
Externí odkaz:
http://arxiv.org/abs/hep-ph/0111066
Autor:
Pavan, M. M., Brack, J. T., Duncan, F., Feltham, A., Jones, G., Lange, J., Raywood, K. J., Sevior, M. E., Adams, R., Ottewell, D. F., Smith, G. R., Wells, B., Helmer, R. L., Mathie, E. L., Tacik, R., Ristinen, R. A., Strakovsky, I. I., Staudenmaier, H-M.
Publikováno v:
Phys.Rev. C64 (2001) 064611
A precision measurement of absolute pi+p and pi-p elastic differential cross sections at incident pion laboratory kinetic energies from T_pi= 141.15 to 267.3 MeV is described. Data were obtained detecting the scattered pion and recoil proton in coinc
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0103006
Publikováno v:
PiN Newslett.15:118-122,1999
A new result for the nucleon sigma term from an updated pion-nucleon partial-wave and dispersion relation analysis of the Virginia Polytechnic Institute (now George Washington University) group is discussed. Using a method similar to that of Gasser,
Externí odkaz:
http://arxiv.org/abs/nucl-th/9912034
Publikováno v:
PiN Newslett. 15 (1999) 171-175; Phys.Scripta T87 (2000) 65-70
Our extraction of the pion-nucleon coupling constant from \pi p elastic scattering data is outlined. A partial wave analysis (T_{\pi} < 2100 MeV) is performed simultaneously with a fixed-t dispersion relation analysis (T_{\pi} < 800 MeV). The \pi NN
Externí odkaz:
http://arxiv.org/abs/nucl-th/9910040
Publikováno v:
Phys.Scripta T87:62-64,2000
We summarize results obtained in our studies of the pion-nucleon coupling constant. Several different techniques have been applied to pi-N and NN elastic scattering data, and the existing database for single-pion photoproduction. The most reliable de
Externí odkaz:
http://arxiv.org/abs/nucl-th/9908057