Differential cross sections and product energy distributions for the C(P3)+OH(XΠ2)→CO(XΣ+1)+H(S2) reaction using a quasiclassical trajectory method

2008 ◽  
Vol 128 (20) ◽  
pp. 204301 ◽  
Author(s):  
Alexandre Zanchet ◽  
Philippe Halvick ◽  
Béatrice Bussery-Honvault ◽  
Pascal Honvault
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Differential Cross Sections ◽  
Energy Distributions ◽  
Trajectory Method

scholarly journals MottCalc: A new tool for calculating Mott scattering differential cross sections for analytical purposes

2020 ◽  
Vol 27 ◽  
pp. 112
Author(s):  
Fotis Maragkos ◽  
Michael Kokkoris ◽  
Anastasios Lagogiannis
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Nuclear Physics ◽  
Analytical Formula ◽  
Radioactive Isotopes ◽  
Differential Cross Sections ◽  
Energy Distributions ◽  
Electronic Screening ◽  
Andersen Model ◽  
Mott Scattering

In the last few years, the popularity of ERDA applications has soared along with the implementation of time of flight (TOF) type measurements. However, ERDA and other forward scattering IBA techniques suffer from the possibility of the occurence of Mott scattering. This leads to deviations in the elastic differential cross sections which in turn demand special care in the treatment of the obtained experimental spectra. To address this issue, a new code has been developed, called MottCalc (Mott Calculator). Based on the analytical formula, first developed by Mott, which describes the phenomenon, the code is capable of producing theoretical angular and energy distributions of such differential cross sections along with the appropriate R33 files, which in turn can be implemented in all the widely used analytical codes (SIMNRA, DF, POTKU etc.). The electronic screening effect is taken into account in these calculations by implementing the Andersen model. A list of 314 different isotopes is available to choose from as projectile and target nuclei. The list can be expanded with radioactive isotopes. The program is available in two distinct versions, an Excel Spreadsheet and a stand-alone application. Both versions of the program can be freely downloaded from the webpage of the Nuclear Physics group of NTUA (nuclearphysics.ntua.gr/downloads.php). The implementation of the code as well as the features and capabilities of both versions of the program are presented in the current work along with a brief synopsis of the elastic Mott scattering phenomenon.

Differential cross sections in antiproton- and proton-helium collisions

1999 ◽  
Vol 32 (4) ◽  
pp. L73-L79 ◽  
Author(s):  
Kh Khayyat ◽  
T Weber ◽  
R Dörner ◽  
M Achler ◽  
V Mergel ◽  
...  
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
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.

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