Journal article
Authors list: Schmidt, A; Achenbach, P; Ahrens, J; Arends, HJ; Beck, R; Bernstein, AM; Hejny, V; Kotulla, M; Krusche, B; Kuhr, V; Leukel, R; MacGregor, IJD; McGeorge, JC; Metag, V; de León, VMO; Rambo, F; Siodlaczek, U; Ströher, H; Walcher, T; Weiss, J; Wissmann, F; Wolf, M
Publication year: 2001
Journal: Physical Review Letters
Volume number: 87
Issue number: 23
ISSN: 0031-9007
Open access status: Green
DOI Link: https://doi.org/10.1103/PhysRevLett.87.232501
Publisher: American Physical Society
Abstract:
The photon asymmetry in the reaction H-1(<()over right arrow>, pi (0))H-1 close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized photons from the tagged-photon facility at the Mainz Microtron MAMI. The total and differential cross sections were also measured simultaneously with the photon asymmetry. This allowed determination of the S-wave and all three P-wave amplitudes. The values obtained at threshold are E0+ = [-1.33 +/- 0.08(stat) +/- 0.03(syst)] x 10(-3)/m(pi+), P-1 = [9.47 +/- 0.08(stat) +/- 0.29(syst)] x 10(-3)q /m(pi+)(2) P-2 [-9.46 +/- 0.1(stat) +/- 0.29(syst)] x 10(-3)q/m(pi+)(2), and P-3 = [11.48 +/- 0.06(stat) +/- 0.35(syst)] x 10(-3)q/m(pi+)(2).
Citation Styles
Harvard Citation style: Schmidt, A., Achenbach, P., Ahrens, J., Arends, H., Beck, R., Bernstein, A., et al. (2001) Test of low-energy theorems for 1H(γover-right-arrow,π0)1H in the threshold region -: art. no. 232501, Physical Review Letters, 87(23), Article 232501. https://doi.org/10.1103/PhysRevLett.87.232501
APA Citation style: Schmidt, A., Achenbach, P., Ahrens, J., Arends, H., Beck, R., Bernstein, A., Hejny, V., Kotulla, M., Krusche, B., Kuhr, V., Leukel, R., MacGregor, I., McGeorge, J., Metag, V., de León, V., Rambo, F., Siodlaczek, U., Ströher, H., Walcher, T., ...Wolf, M. (2001). Test of low-energy theorems for 1H(γover-right-arrow,π0)1H in the threshold region -: art. no. 232501. Physical Review Letters. 87(23), Article 232501. https://doi.org/10.1103/PhysRevLett.87.232501
Keywords
CROSS-SECTION; GAMMA-P->PI(0)P; MAINZ; MASS DIFFERENCE; MICROTRON; NEUTRAL-PION-PHOTOPRODUCTION; PROTON; SECTION NEAR-THRESHOLD; TAGGED PHOTON SPECTROMETER
