Periodic Interference Structures in the Timelike Proton Form Factor
نویسندگان
چکیده
منابع مشابه
Periodic Interference Structures in the Timelike Proton Form Factor.
An intriguing and elusive feature of the timelike hadron form factor is the possible presence of an imaginary part associated to rescattering processes. We find evidence of that in the recent and precise data on the proton timelike form factor measured by the BABAR Collaboration. By plotting these data as a function of the 3-momentum of the relative motion of the final proton and antiproton, a ...
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We show that measurements of the proton’s polarization in e+e− → pp̄ strongly discriminate between analytic forms of models which fit the proton form factors in the spacelike region. In particular, the single-spin asymmetry normal to the scattering plane measures the relative phase difference between the timelike GE and GM form factors. The expected proton polarization in the timelike region is ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2015
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.114.232301