Coherent π 0 threshold production from the deuteron at Q 2 = 0 . 1 GeV
نویسندگان
چکیده
First data on coherent threshold π electroproduction from the deuteron taken by the A1 Collaboration at the Mainz Microtron MAMI are presented. At a four-momentum transfer of q = −0.1GeV/c the full solid angle was covered up to a centerof-mass energy of 4 MeV above threshold. By means of a Rosenbluth separation the longitudinal threshold s wave multipole and an upper limit for the transverse threshold s wave multipole could be extracted and compared to predictions of Heavy Baryon Chiral Perturbation Theory.
منابع مشابه
0 Coherent π 0 threshold production from the deuteron at Q 2 = 0 . 1 GeV
First data on coherent threshold π electroproduction from the deuteron taken by the A1 Collaboration at the Mainz Microtron MAMI are presented. At a four-momentum transfer of q = −0.1GeV/c the full solid angle was covered up to a centerof-mass energy of 4 MeV above threshold. By means of a Rosenbluth separation the longitudinal threshold s wave multipole and an upper limit for the transverse th...
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