Comparison between two models for the isospin dependence of many-particle production cross-sections

1974 ◽  
Vol 9 (17) ◽  
pp. 697-700
Author(s):  
G. Fratamico
Keyword(s):  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
Isospin Dependence

EQUAL VELOCITY RULE IN HEAVY HADRON PRODUCTION AT HIGH ENERGY

1989 ◽  
Vol 04 (02) ◽  
pp. 369-387 ◽  
Author(s):  
T. KITAZOE ◽  
H. INAZAWA ◽  
T. MORII
Keyword(s):  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
Heavy Particle ◽  
Bound State ◽  
High Energy ◽  
Wave Functions ◽  
Characteristic Energy ◽  
Heavy Particles ◽  
Heavy Hadron

A production mechanism of heavy particles in e+e− annihilations is studied on a field theoretical basis using the bound state wave functions. The requirement that wave functions of hadrons overlap maximally with each other leads to the conclusion that (1) the model predicts a 2-jet structure in a one-loop diagram and (2) heavy hadrons in a jet have an equal velocity. Heavy particle production cross sections and their characteristic energy distributions are calculated for some typical reactions.

Correlation study in high energy interaction of muon with Ag and Br nuclei

2018 ◽  
Vol 27 (09) ◽  
pp. 1850077
Author(s):  
M. T. Hussein ◽  
M. T. Ghoneim ◽  
S. M. Othman
Keyword(s):  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
High Energy ◽  
Correlation Study ◽  
Alpha Particles ◽  
Angular Correlations ◽  
Energy Interaction ◽  
Range Correlation ◽  
Total Particle

In this work, we present the study of emissions of light fragments produced in interactions of 160 GeV muons with emulsion nuclei. A total of 820 interactions with emulsion nuclei were collected. Thickness, coordinate and range of each track were measured. Charges of emitted fragments were identified and the corresponding energies were calculated. Multiplicity, total particle production cross-sections and angular distribution of particles (P, He, Li, Be and B) were presented. Forward–backward–angular correlations were measured for the emitted alpha particles. Short and long range correlation among pairs of Alfa particles were observed at specific angular intervals. The experimental data and the results of the angular correlation were used to find the probable mechanism of producing alpha particles and to reveal the dynamic characteristics of the reactions.

scholarly journals COLORED SCALAR PARTICLES PRODUCTION IN pp-COLLISIONS AND POSSIBLE MASS LIMITS FOR SCALAR GLUONS FROM FUTURE LHC DATA

2008 ◽  
Vol 23 (34) ◽  
pp. 2907-2913 ◽  
Author(s):  
M. V. MARTYNOV ◽  
A. D. SMIRNOV
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
Scalar Particle ◽  
Pp Collisions ◽  
Total Cross Sections ◽  
Scalar Particles ◽  
Gluon Production ◽  
Colored Scalar

Cross sections of the colored scalar particle production in pp-collisions are calculated and differential and total cross sections of the corresponding parton subprocesses are obtained. The total cross section of scalar gluon production in pp-collisions at the LHC is estimated and the dominant decays of scalar gluons are discussed. The production cross section of scalar gluons F with masses mF ≲ 1300 GeV is shown to be sufficient for the effective production of these particles at the LHC.

scholarly journals DeepXS: fast approximation of MSSM electroweak cross sections at NLO

2020 ◽  
Vol 80 (1) ◽  
Author(s):  
Sydney Otten ◽  
Krzysztof Rolbiecki ◽  
Sascha Caron ◽  
Jong-Soo Kim ◽  
Roberto Ruiz de Austri ◽  
...  
Keyword(s):  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
Hadron Collider ◽  
Distribution Functions ◽  
Monte Carlo Integration ◽  
Leading Order ◽  
Parton Distribution Functions ◽  
Dimensional Parameter ◽  
O 10

AbstractWe present a deep learning solution to the prediction of particle production cross sections over a complicated, high-dimensional parameter space. We demonstrate the applicability by providing state-of-the-art predictions for the production of charginos and neutralinos at the Large Hadron Collider (LHC) at the next-to-leading order in the phenomenological MSSM-19 and explicitly demonstrate the performance for $$pp\rightarrow \tilde{\chi }^+_1\tilde{\chi }^-_1,$$pp→χ~1+χ~1-,$$\tilde{\chi }^0_2\tilde{\chi }^0_2$$χ~20χ~20 and $$\tilde{\chi }^0_2\tilde{\chi }^\pm _1$$χ~20χ~1± as a proof of concept which will be extended to all SUSY electroweak pairs. We obtain errors that are lower than the uncertainty from scale and parton distribution functions with mean absolute percentage errors of well below $$0.5\,\%$$0.5% allowing a safe inference at the next-to-leading order with inference times that improve the Monte Carlo integration procedures that have been available so far by a factor of $$\mathscr {O}(10^7)$$O(107) from $$\mathscr {O}(\mathrm{min})$$O(min) to $$\mathscr {O}(\mu \mathrm{s})$$O(μs) per evaluation.

Chapter 21 Charm Production and D Tagging

2009 ◽  
Vol 24 (supp01) ◽  
pp. 503-520
Author(s):  
Kang-Lin He ◽  
Sheng-Sen Sun ◽  
Ming Yang ◽  
Da-Yong Zhang
Keyword(s):  
Cross Sections ◽  
Particle Production ◽  
Production Cross ◽  
D Meson ◽  
Charm Production ◽  
Charmed Particle

The following sections are included: Charmed Particle Production Cross Sections D-Meson Tagging

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