USE OF PI P ---> PI PI N REACTIONS TO STUDY PI PI SCATTERING IN THE ELASTIC INTERACTION REGION

Alekseeva, E.a. ; Kartamyshev, A.a. ; Makarin, V.k. ; et al.
Sov.Phys.JETP 55 (1982) 591-600, 1982.
Inspire Record 185170 DOI 10.17182/hepdata.2406

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10 data tables

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Proton form factor from 0.15 to 0.79 fm-2

Murphy, J.J. ; Shin, Y.M. ; Skopik, D.M. ;
Phys.Rev.C 9 (1974) 2125-2129, 1974.
Inspire Record 97651 DOI 10.17182/hepdata.25062

The absolute electron-proton elastic scattering cross section has been measured by detecting the recoil protons. The proton charge form factor has been extracted for values of the square of the momentum transfer between 0.15 and 0.79 fm−2. The rms charge radius determined from these measurements is 0.81±0.04 fm. [NUCLEAR REACTIONS H1(e,p), E=55−130 MeV, measured σ(E;Ep,θ); deduced charge form factor, rms charge radius.]

11 data tables

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Electromagnetic Form-Factors of the Proton at Low Four-Momentum Transfer

Borkowski, F. ; Peuser, P. ; Simon, G.G. ; et al.
Nucl.Phys.B 93 (1975) 461-478, 1975.
Inspire Record 850 DOI 10.17182/hepdata.31992

The 300 MeV electron linear accelerator of Mainz has been used to measure the angular dependence of the electron-proton elastic scattering cross sections at seven different energies for squared four-momentum transfers between 0.13 and 4.7 fm −2 . The proton form factors have been extracted from the cross sections by means of Rosenbluth plots and by fitting parametrized analytical functions directly to the cross sections. The best fit is compared to the data of other laboratories. The previously reported deviations from the dipole fit have been confirmed. From the form factors at q 2 <0.9 fm 2 the proton r.m.s. radius has been determined. A determination of the spectral function of the nucleon isovector form factor G E V in the time-like is obtained using a realistic ϱ resonance.

9 data tables

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