Inclusive Cross-Sections for 180-Degree Production of High-Energy Protons, Deuterons, and Tritons in p-Nucleus Collisions at 600-MeV and 800-MeV

Frankel, S. ; Frati, W. ; Van Dyck, O. ; et al.
Phys.Rev.Lett. 36 (1976) 642, 1976.
Inspire Record 100888 DOI 10.17182/hepdata.21102

The inclusive cross sections, measured up to large values of effective mass (≡q22ν), are well fitted by dσd3p=Bxexp(−αxp22mx). Values of Bx and αx are given for Be, C, Cu, and Ta at the incident proton energy of 600 MeV and for Ag, Ta, and Pt at 800 MeV. Extremely large dp and tp ratios and large A and q2 dependences of the relative cross sections are observed.

2 data tables

D3(SIG)/D3(P) is fitted by the equation: CONST*exp(-SLOPE*P**2/(2*M)). CONST is presented per nucleon.

D3(SIG)/D3(P) is fitted by the equation: CONST*exp(-SLOPE*P**2/(2*M)). CONST is presented per nucleon.


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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Electromagnetic form-factors of the proton at low four-momentum transfer

Borkowski, F. ; Peuser, P. ; Simon, G.G. ; et al.
Nucl.Phys.A 222 (1974) 269-275, 1974.
Inspire Record 94754 DOI 10.17182/hepdata.37116

Electron-proton elastic scattering cross sections were measured at low four-momentum transfers squared ( q 2 from 0.13 to 2.15 fm −2 ) at six different energies between 150 and 275 MeV. The electric ( G E ) and magnetic ( G M ) form factors of the proton have been determined by Rosenbluth plots and independently by using analytical functions for the form factors to fit the cross sections. The electric form factor is found to deviate significantly from the dipole fit. From the slope of the form factor functions at q 2 = 0 the rms radii of the charge and the magnetic moment distribution were determined. The charge rms radius is found to be more than 10% larger than the value given by the dipole fit.

6 data tables

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