Elastic total cross-sections in an RSIIp scenario

2016 ◽  
Vol 25 (10) ◽  
pp. 1650084 ◽  
Author(s):  
R. Arceo ◽  
Omar Pedraza ◽  
L. A. López ◽  
L. Valencia-Palomo ◽  
E. González-Espinosa ◽  
...  
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Cross Sections ◽  
Extra Dimensions ◽  
Length Scale ◽  
Electromagnetic Potential ◽  
Total Cross Sections

The total elastic nucleon–nucleus cross-section is calculated at energies up to 600 MeV for the elements [Formula: see text]C, [Formula: see text]Pb, [Formula: see text]O, 9Be, 4He, 2H, [Formula: see text]U and [Formula: see text]Al using a finite electromagnetic potential, which is obtained considering a Randall–Sundrum II scenario modified by the inclusion of [Formula: see text] compact extra dimensions. The length scale bound is set in the potential to compare with known experimental data.

Differential cross sections in a thick brane world scenario

2018 ◽  
Vol 96 (2) ◽  
pp. 183-188
Author(s):  
R. Arceo ◽  
Omar Pedraza ◽  
L.A. López ◽  
Ariel Flores-Rosas ◽  
G. León-Soto
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Brane World ◽  
Length Scale ◽  
Electromagnetic Potential ◽  
Low Energies ◽  
Elastic Differential Cross Section ◽  
Kaluza Klein

The elastic differential cross section is calculated at low energies for the elements 3He, 20Ne, 40Ar, 14N, 12C, and for 208Pb using an effective 4D electromagnetic potential coming from the contribution of the massive Kaluza–Klein modes of the 5D vector field in a thick brane scenario. The length scale is adjusted in the potential to compare with known experimental data and to set bounds for the parameter of the model.

Pion-nucleon scattering at high energies

1966 ◽  
Vol 289 (1419) ◽  
pp. 500-508 ◽  
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Charge Exchange ◽  
Cross Sections ◽  
Scattering Amplitude ◽  
Forward Scattering Amplitude ◽  
Nucleon Scattering ◽  
Total Cross Sections ◽  
High Energies ◽  
Pion Nucleon

The charge exchange forward scattering amplitude 1.1 1.2 using an interpolation of the total cross sections which includes the results presented by Dr Galbraith at this meeting. From F (-) follows a prediction for the charge exchange forward cross section (c.m. system) 1.3 which will be compared with the experimental data including those presented by Dr Falk-Vairant and Dr Guerriero.

scholarly journals Cross section measurements of the 7 8Se(p,7)7 9Br and 8 0Se(p,7)8 1Br reactions

2019 ◽  
Vol 11 ◽  
Author(s):  
G. Kriembardis ◽  
S. Galanopoulos ◽  
P. Demetriou ◽  
S. Harissopulos ◽  
M. Fey ◽  
...  
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Cross Sections ◽  
Preliminary Analysis ◽  
High Efficiency ◽  
Background Suppression ◽  
Total Cross Sections ◽  
Hpge Detectors ◽  
Theoretical Predictions ◽  
Compton Background

In beam cross section measurements of the 78Se(p,7)79Br and 80Se(p,7)81Br reactions have been carried out at Ep=1.4-3.5 MeV, by using high efficiency HPGe detectors with BGO shields for Compton background suppression. A preliminary analysis yielded total cross sections ranging from 10 μb to 3 mb. By means of the statistical compound nucleus theory of Hauser-Feshbach cross sections have also been calculated. A comparison between experimental data and theoretical predictions is presented.

scholarly journals HEAVY QUARK PHOTOPRODUCTION IN THE SEMIHARD APPROACH AT HERA AND BEYOND

1996 ◽  
Vol 11 (01) ◽  
pp. 25-35 ◽  
Author(s):  
V.A. SALEEV ◽  
N.P. ZOTOV
Keyword(s):  
Experimental Data ◽  
Heavy Quark ◽  
Cross Section ◽  
Cross Sections ◽  
Gluon Distribution ◽  
Longitudinal Polarization ◽  
Factorization Approach ◽  
Total Cross Sections ◽  
Small X ◽  
Saturation Effects

Processes of heavy quark photoproduction at HERA energies and beyond are investigated using the semihard (k⊥ factorization) approach. Virtuality and longitudinal polarization of gluons in the photon-gluon subprocess as well as the saturation effects in the gluon distribution function at small x have been taken into account. The total cross-sections, rapidity and p⊥ distributions of the charm and beauty quark photoproduction have been calculated. The results are compared with ZEUS experimental data for charm photoproduction cross-section.

scholarly journals Total cross sections of eγ → $$ eX\overline{X} $$ processes with X = μ, γ, e via multiloop methods

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Roman N. Lee ◽  
Alexey A. Lyubyakin ◽  
Vyacheslav A. Stotsky
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Elliptic Integral ◽  
High Energy ◽  
Calculation Methods ◽  
Complete Elliptic Integral ◽  
Total Cross Sections ◽  
Multiloop Calculation ◽  
The Cross ◽  
Analytical Expressions

Abstract Using modern multiloop calculation methods, we derive the analytical expressions for the total cross sections of the processes e−γ →$$ {e}^{-}X\overline{X} $$ e − X X ¯ with X = μ, γ or e at arbitrary energies. For the first two processes our results are expressed via classical polylogarithms. The cross section of e−γ → e−e−e+ is represented as a one-fold integral of complete elliptic integral K and logarithms. Using our results, we calculate the threshold and high-energy asymptotics and compare them with available results.

scholarly journals Energy Dependence of Total Cross Sections for Reactions with 4, 6he, 6, 7, 9li Nuclei

KnE Energy ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 21
Author(s):  
Yu Penionzhkevich ◽  
Yu Sobolev ◽  
V Samarin ◽  
M Naumenko
Keyword(s):  
Experimental Data ◽  
Energy Range ◽  
Numerical Solution ◽  
Energy Dependence ◽  
Cross Sections ◽  
Beam Energy ◽  
Microscopic Analysis ◽  
Time Dependent ◽  
Total Cross Sections ◽  
Good Agreement

The paper presents the results of measurement of the total cross sections for reactions 4,6He + Si and 6,7,9Li + Si in the beam energy range 5−50 A⋅MeV. The enhancements of the total cross sections for reaction 6He + Si compared with reaction 4He + Si, and 9Li + Si compared with reactions 6,7Li + Si have been observed. The performed microscopic analysis of total cross sections for reactions 6He + Si and 9Li + Si based on numerical solution of the time-dependent Schrödinger equation for external neutrons of projectile nuclei 6He and 9Li yielded good agreement with experimental data.

DOUBLE PION PHOTOPRODUCTION EXPERIMENT AT LNS–TOHOKU

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2313-2316 ◽  
Author(s):  
◽  
H. KANDA ◽  
N. CHIGA ◽  
Y. FUJII ◽  
K. FUTATSUKAWA ◽  
...  
Keyword(s):  
Total Cross Section ◽  
Energy Range ◽  
Cross Section ◽  
Cross Sections ◽  
Pion Photoproduction ◽  
Total Cross Sections ◽  
Free Proton ◽  
Double Pion ◽  
The Cross

The total cross sections for the π+π− photoproduction on the deuteron were measured in an energy range of 0.8 to 1.1 GeV. The obtained total cross section for the quasi-free π+π− photoproduction on the deuteron was about 60 % of those on the free proton. The cross section for Δ++Δ− photoproduction was derived from the non-quasi-free π+π− photoproduction events. It was smaller than the previous data.

Production cross-section of heavy flavored hadrons in pp collision at s = 7 TeV

2019 ◽  
Vol 34 (19) ◽  
pp. 1950150 ◽  
Author(s):  
Muhammad Ajaz ◽  
Irfan Khan ◽  
M. K. Suleymanov
Keyword(s):  
Experimental Data ◽  
Transverse Momentum ◽  
Differential Cross Section ◽  
Cross Section ◽  
Momentum Distribution ◽  
Cross Sections ◽  
Production Cross ◽  
Center Of Mass ◽  
Transverse Momentum Distribution ◽  
Mass Frame

The transverse momentum distribution of the differential production cross-sections of heavy flavored charm hadrons [Formula: see text], [Formula: see text] in pp collisions at 7 TeV are simulated. Predictions of DPMJETIII.17-1, HIJING1.383 and Sibyll2.3c are compared to the differential cross-section measurements of the LHCb experimental data presented in the region of [Formula: see text] and [Formula: see text], where the pp center of mass frame is used to measure the transverse momentum and rapidity. The models reproduce only some regions of [Formula: see text] and/or bins of [Formula: see text] but none of them predict completely all the [Formula: see text] bins over the entire [Formula: see text] range.

Isomeric cross-section ratios and total cross sections for the 59Co(n, 2n)58g, mCo, 58Ni(n, p)58g, mCo and 59Co(γ, n)58g, mCo reactions

1968 ◽  
Vol 112 (3) ◽  
pp. 513-526 ◽  
Author(s):  
P. Decowski ◽  
W. Grochulski ◽  
A. Marcinkowski ◽  
K. Siwek ◽  
I. Śledzińska ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Total Cross Sections

scholarly journals Do we understand near-forward elastic scattering up to TeV energies?

2015 ◽  
Vol 30 (08) ◽  
pp. 1542006 ◽  
Author(s):  
Claude Bourrely ◽  
Jacques Soffer ◽  
Tai Tsun Wu
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Cross Sections ◽  
Phenomenological Model ◽  
Experimental Results ◽  
Proton Proton ◽  
Total Cross Sections

In 1970, on purely theoretical grounds, all total hadronic total cross-sections were predicted to increase without limit for higher and higher energies. This was contrary to the conventional belief at that time. In 1978, an accurate phenomenological model was formulated for the case of proton–proton and antiproton-proton interactions. The parameters for this model were slightly improved in 1984 using the additional available experimental data. Since then, for 30 years these parameters have not changed. This development, including especially the difficult task of formulating this phenomenological model and the comparison of the predictions of this model with later experimental results, is summarized.

Sign in / Sign up

Export Citation Format

Share Document