Quantum mechanical and quasiclassical trajectory study of state-to-state differential cross sections for the F+D2→DF+D reaction in the center-of-mass and laboratory frames

1999 ◽  
Vol 1 (15) ◽  
pp. 3415-3427 ◽  
Author(s):  
B. Martínez-Haya ◽  
F. J. Aoiz ◽  
L. Bañares ◽  
P. Honvault ◽  
J. M. Launay
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Center Of Mass ◽  
Quantum Mechanical ◽  
Differential Cross Sections

scholarly journals Measurements of the differential cross sections of the production of Z + jets and γ + jets and of Z boson emission collinear with a jet in pp collisions at $$ \sqrt{s} $$ = 13 TeV

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
◽  
A. M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
F. Ambrogi ◽  
...  
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Z Boson ◽  
Center Of Mass ◽  
Z Bosons ◽  
Differential Cross Sections ◽  
Pp Collisions ◽  
Center Of Mass Energy ◽  
Cms Experiment ◽  
Theoretical Predictions

Abstract Measurements of the differential cross sections of Z + jets and γ + jets production, and their ratio, are presented as a function of the boson transverse momentum. Measurements are also presented of the angular distribution between the Z boson and the closest jet. The analysis is based on pp collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 35.9 fb−1 recorded by the CMS experiment at the LHC. The results, corrected for detector effects, are compared with various theoretical predictions. In general, the predictions at higher orders in perturbation theory show better agreement with the measurements. This work provides the first measurement of the ratio of the differential cross sections of Z + jets and γ + jets production at 13 TeV, as well as the first direct measurement of Z bosons emitted collinearly with a jet.

Determination of single neutron spectroscopic factor of doubly shell closed, neutron shell closed and neutron-rich nuclei through (d,p) reaction

2020 ◽  
Vol 29 (06) ◽  
pp. 2050030
Author(s):  
A. Vinayak ◽  
M. M. Hosamani ◽  
P. N. Patil ◽  
N. M. Badiger
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Spectroscopic Factor ◽  
Center Of Mass ◽  
Recoil Nucleus ◽  
Projectile Energy ◽  
Neutron Separation Energy ◽  
Differential Cross Sections ◽  
Separation Energy ◽  
Neutron Shell

The spectroscopic factor (SF) of doubly-magic nuclei, neutron shell closed and neutron-rich nuclei has been determined through ([Formula: see text], [Formula: see text]) reaction in the projectile energy range from 3 to 26[Formula: see text]MeV. The theoretical angular differential cross-sections of ([Formula: see text], [Formula: see text] reactions in scattering center-of-mass angles from [Formula: see text] to [Formula: see text] have been calculated using FRESCO and NRV-DWUCK5 codes. By comparing the theoretical angular differential cross-sections with available experimental angular differential cross-sections, the values of SF have been determined. The exponential increase of SF as a function of neutron separation energy normalized by spin of the recoil nuclei has been shown for the first time for doubly-magic nuclei. The similar type of trend has also been observed for neutron-rich as well as neutron shell closed nuclei as a function of neutron separation energy normalized by asymmetric factor of recoil nucleus. More experimental data are required to verify the trend predicted by this investigation.

Vacuum polarization and D-wave α−α scattering

1969 ◽  
Vol 47 (1) ◽  
pp. 113-115 ◽  
Author(s):  
Mark W. Kermode
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Vacuum Polarization ◽  
Center Of Mass ◽  
Phase Shifts ◽  
Differential Cross Sections ◽  
Wave Phase ◽  
Low Energies ◽  
D Wave

The D-wave phase shifts for α−α scattering at low energies are obtained from (i) new analyses of the differential cross sections and (ii) the effects of vacuum polarization. The results are −0.4° (−0.4°), −0.2° (−0.4°), +0.2° (−0.4°), −0.2° (−0.2°), and 0.3° (0.2°) for the center-of-mass energies 0.3, 0.425, 0.5, 0.75, and 1.0 MeV, respectively. It is felt that these results are significant.

scholarly journals MEASUREMENT OF DIFFERENTIAL CROSS SECTIONS OF p(e, e′π+)n FOR HIGH-LYING RESONANCES AT Q2 < 5 GeV2

2014 ◽  
Vol 26 ◽  
pp. 1460102
Author(s):  
◽  
KIJUN PARK
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Center Of Mass ◽  
Differential Cross Sections ◽  
Cross Section Data ◽  
Photon Virtuality ◽  
Mass System ◽  
Section Data ◽  
Data Points ◽  
First Time

The exclusive electroproduction process ep → e′nπ+ was measured in the range of the invariant mass for nπ+ system 1.6 GeV ≤ W ≤ 2.0 GeV, and the photon virtuality 1.8 GeV2 ≤ Q2 ≤ 4.0 GeV2 using CLAS. For the first time, these kinematics are probed in exclusive π+ production from the protons with nearly full coverage in the azimuthal and polar angles of the nπ+ center-of-mass system. In this experiment, approximately 39,000 differential cross-section data points were measured. In this conference proceeding, preliminary results of our latest analysis work are presented on differential cross sections and structure functions as well as Legendre Moments.

scholarly journals Quantum mechanical and quasiclassical calculations for the H+D2→HD+D reaction: Reaction probabilities and differential cross sections

1994 ◽  
Vol 101 (7) ◽  
pp. 5781-5791 ◽  
Author(s):  
F. J. Aoiz ◽  
L. Bañares ◽  
M. J. D’Mello ◽  
V. J. Herrero ◽  
V. Sáez Rábanos ◽  
...  
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Quantum Mechanical ◽  
Differential Cross Sections
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