π+–p elastic scattering at 47.9 MeV

1979 ◽  
Vol 57 (1) ◽  
pp. 73-78 ◽  
Author(s):  
E. G. Auld ◽  
D. Axen ◽  
J. Beveridge ◽  
C. Duesdieker ◽  
L. Felawka ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Phase Shifts ◽  
Laboratory System ◽  
Angular Range ◽  
Three Phase

The differential cross section for π+–p elastic scattering at 47.9 MeV has been measured in the angular range from 30 to 170° in the laboratory system. The three phase shifts extracted from these data, δS3 = −4.7 ± 0.5°, δP31 = −0.53 ± 0.14°, and δP33 = 5.1 ± 0.3°, are consistent with phase shifts obtained at other energies.

scholarly journals The scattering of alpha particles by helium

1959 ◽  
Vol 251 (1265) ◽  
pp. 143-155 ◽  
Keyword(s):  
Elastic Scattering ◽  
Phase Shift ◽  
Differential Cross Section ◽  
Excitation Energy ◽  
Cross Section ◽  
Differential Cross ◽  
Incident Energy ◽  
Phase Shifts ◽  
Alpha Particles

In order to obtain information about the levels of even spin and parity of 8 Be at energies above 11 MeV, the differential cross-section for the α-particle-helium elastic scattering has been measured at a series of beam energies from 23·1 to 38·4 MeV, for many c.m.s. angles between 30 and 90°. Phase shifts up to L = 8 have been calculated for each energy. Combining these results with previous figures for lower energies, the phase shifts δ 0 , δ 2 and δ 4 are thus known as functions of incident energy from 0·15 MeV to 38·4 MeV. The behaviour of the phase shift δ 4 confirms the existence of a previously suggested level with I = 4 at an excitation energy of about 11·4 MeV in 8 Be. The phase shifts δ 6 and δ 8 are small, as expected if the rotational series of levels in 8 Be term inates with I = 4.

Differential cross section, analyzing power and phase shifts for elastic scattering below 1.0 MeV

1980 ◽  
Vol 334 (1) ◽  
pp. 21-34 ◽  
Author(s):  
H. Berg ◽  
W. Arnold ◽  
E. Huttel ◽  
H.H. Krause ◽  
J. Ulbricht ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Phase Shifts ◽  
Analyzing Power

DEUTERON-PROTON ELASTIC SCATTERING AT 1.25 GeV/u

2011 ◽  
Vol 26 (03n04) ◽  
pp. 668-670
Author(s):  
◽  
PAVEL K. KURILKIN
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Short Range ◽  
Center Of Mass ◽  
Angular Range ◽  
Mass System ◽  
Proton Elastic Scattering ◽  
Short Range Correlations

Preliminary results on the differential cross section in dp elastic scattering has been obtained at 1.25 GeV/u with HADES within a large angular range in the center of mass system. The obtained data correspond to large transverse momenta, where a sensitivity to the 2 N and 3 N short range correlations is expected.

Differential cross-section measurements in positron–argon collisions

1996 ◽  
Vol 74 (7-8) ◽  
pp. 505-508 ◽  
Author(s):  
R. M. Finch ◽  
Á. Kövér ◽  
M. Charlton ◽  
G. Laricchia
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Inelastic Scattering ◽  
Energy Range ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Coupling Effect ◽  
Channel Coupling ◽  
Scattering Cross

Differential cross sections for elastic scattering and ionization in positron–argon collisions as a function of energy (40–150 eV) are reported at 60°. Of particular interest is the energy range 55–60 eV, where earlier measurements by the Detroit group found a drop in the elastic-scattering cross section of a factor of 2. This structure has been tentatively attributed to a cross channel-coupling effect with an open inelastic-scattering channel, most likely ionization. Our results indicate that ionization remains an important channel over the same energy range and only begins to decrease at an energy above 60 eV.

Differential Cross Section Measurements for the Elastic Scattering of Protons byN14

1957 ◽  
Vol 105 (1) ◽  
pp. 210-212 ◽  
Author(s):  
C. R. Bolmgren ◽  
G. D. Freier ◽  
J. G. Likely ◽  
K. F. Famularo
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross

PROTON–4He ELASTIC SCATTERING AT ~ 1 GeV

2005 ◽  
Vol 14 (05) ◽  
pp. 787-798 ◽  
Author(s):  
Z. A. KHAN ◽  
MINITA SINGH
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Phase Variation ◽  
Glauber Model ◽  
Slight Improvement ◽  
Polarization Data ◽  
Eikonal Expansion ◽  
Rotation Function

Based on the (spin-independent) Sugar–Blanckenbecler eikonal expansion for the T-matrix, we parametrize the (spin-dependent) NN amplitude (SNN) which successfully describes the pp and pn elastic scattering observables at ~ 1 GeV up to the available momentum transfers. Using SNN, we calculate the differential cross-section, polarization, and spin-rotation function of ~ 1 GeV protons on 4 He within the framework of the Glauber model. The analysis also includes the phase variation in the NN amplitude. It is found that the use of SNN, in comparision with the usually parametrized one-term amplitude, improves the agreement with the experimental data. The introduction of a global phase variation provides only a slight improvement over the results with a constant phase. However, if we allow different phases in the central- and spin-dependent parts of the NN amplitude, the agreement with the polarization data improves further without affecting the differential cross-section results.

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