Transverse-momentum distribution of secondaries from high-energy nuclear interactions and interpretation by means of a statistical model

1967 ◽  
Vol 48 (2) ◽  
pp. 482-505 ◽  
Author(s):  
K. Imaeda
Keyword(s):  
Transverse Momentum ◽  
Statistical Model ◽  
Momentum Distribution ◽  
High Energy ◽  
Transverse Momentum Distribution ◽  
Nuclear Interactions

An interpretation of the bursts produced in the iron of the Haverah Park spectrograph

1968 ◽  
Vol 46 (10) ◽  
pp. S127-S130
Author(s):  
K. J. Orford ◽  
K. E. Turver
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
Transverse Momentum Distribution ◽  
Shower Core ◽  
Active Particles ◽  
Nuclear Interactions ◽  
Momentum Spectra

The bursts produced in the iron of the Haverah Park muon spectrograph are explained in terms of the electromagnetic and nuclear interactions of muons, nucleons, and pions in EAS. The data are used to confirm the form of the momentum spectra of muons at large distances from the shower core. The transverse momentum distribution necessary to account for the bursts attributed to nuclear-active particles is shown to be similar to that quoted by Earnshaw et al. (1967a).

scholarly journals J/ψ transverse momentum distribution in high energy nuclear collisions

2009 ◽  
Vol 678 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Yunpeng Liu ◽  
Zhen Qu ◽  
Nu Xu ◽  
Pengfei Zhuang
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
High Energy ◽  
Transverse Momentum Distribution ◽  
Nuclear Collisions

scholarly journals Overview of TMD Evolution

2016 ◽  
Vol 40 ◽  
pp. 1660014 ◽  
Author(s):  
Daniël Boer
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
High Energy ◽  
Transverse Momentum Distribution ◽  
Parton Distributions ◽  
Transverse Momentum Dependent ◽  
Azimuthal Asymmetries

Transverse momentum dependent parton distributions (TMDs) appear in many scattering processes at high energy, from the semi-inclusive DIS experiments at a few GeV to the Higgs transverse momentum distribution at the LHC. Predictions for TMD observables crucially depend on TMD factorization, which in turn determines the TMD evolution of the observables with energy. In this contribution to SPIN2014 TMD factorization is outlined, including a discussion of the treatment of the nonperturbative region, followed by a summary of results on TMD evolution, mostly applied to azimuthal asymmetries.

scholarly journals An Analysis of Transverse Momentum Spectra of Various Jets Produced in High Energy Collisions

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Yang-Ming Tai ◽  
Pei-Pin Yang ◽  
Fu-Hu Liu
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
Thermal Model ◽  
High Energy ◽  
Transverse Momentum Distribution ◽  
High Energies ◽  
Model Distribution ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
High Energy Collisions

With the framework of the multisource thermal model, we analyze the experimental transverse momentum spectra of various jets produced in different collisions at high energies. Two energy sources, a projectile participant quark and a target participant quark, are considered. Each energy source (each participant quark) is assumed to contribute to the transverse momentum distribution to be the TP-like function, i.e., a revised Tsallis–Pareto-type function. The contribution of the two participant quarks to the transverse momentum distribution is then the convolution of two TP-like functions. The model distribution can be used to fit the experimental spectra measured by different collaborations. The related parameters such as the entropy index-related, effective temperature, and revised index are then obtained. The trends of these parameters are useful to understand the characteristic of high energy collisions.

scholarly journals Analyzing Transverse Momentum Spectra by a New Method in High-Energy Collisions

Universe ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 31
Author(s):  
Li-Li Li ◽  
Fu-Hu Liu ◽  
Muhammad Waqas ◽  
Muhammad Ajaz
Keyword(s):  
Transverse Momentum ◽  
Energy Range ◽  
Momentum Distribution ◽  
Effective Temperature ◽  
Center Of Mass ◽  
High Energy ◽  
Transverse Momentum Distribution ◽  
Central Nucleus ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra

We analyzed the transverse momentum spectra of positively and negatively charged pions (π+ and π−), positively and negatively charged kaons (K+ and K−), protons and antiprotons (p and p¯), as well as ϕ produced in mid-(pseudo)rapidity region in central nucleus–nucleus (AA) collisions over a center-of-mass energy range from 2.16 to 2760 GeV per nucleon pair. The transverse momentum of the considered particle is regarded as the joint contribution of two participant partons which obey the modified Tsallis-like transverse momentum distribution and have random azimuths in superposition. The calculation of transverse momentum distribution of particles is performed by the Monte Carlo method and compared with the experimental data measured by international collaborations. The excitation functions of effective temperature and other parameters are obtained in the considered energy range. With the increase of collision energy, the effective temperature parameter increases quickly and then slowly. The boundary appears at around 5 GeV, which means the change of reaction mechanism and/or generated matter.

scholarly journals Investigation of Particle Distributions in Xe-Xe Collision at sNN=5.44 TeV with the Tsallis Statistics

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Hai-Fu Zhao ◽  
Bao-Chun Li ◽  
Hong-Wei Dong
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
Charged Particles ◽  
High Energy ◽  
Transverse Momentum Distribution ◽  
Final State ◽  
Tsallis Statistics ◽  
Nuclear Modification Factor ◽  
Particle Distributions ◽  
Modification Factor

The distribution characteristic of final-state particles is one of the significant parts in high-energy nuclear collisions. The transverse momentum distribution of charged particles carries essential evolution information about the collision system. The Tsallis statistics is used to investigate the transverse momentum distribution of charged particles produced in Xe-Xe collisions at sNN=5.44 TeV. On this basis, we reproduce the nuclear modification factor of the charged particles. The calculated results agree approximately with the experimental data measured by the ALICE Collaboration.

scholarly journals THE INTERNAL STRUCTURE OF JETS AT COLLIDERS: LIGHT AND HEAVY QUARK INCLUSIVE HADRONIC DISTRIBUTIONS

2011 ◽  
Vol 20 (07) ◽  
pp. 1616-1622
Author(s):  
REDAMY PEREZ-RAMOS
Keyword(s):  
Transverse Momentum ◽  
Heavy Quark ◽  
Momentum Distribution ◽  
Evolution Equations ◽  
Light Quark ◽  
High Energy ◽  
Charged Hadron ◽  
Transverse Momentum Distribution ◽  
Average Multiplicity ◽  
High Energy Collisions

In this paper, we report our results on charged hadron multiplicities of heavy quark initiated jets produced in high energy collisions. After implementing the so-called dead cone effect in QCD evolution equations, we find that the average multiplicity decreases significantly as compared to the massless case. Finally, we discuss the transverse momentum distribution of light quark initiated jets and emphasize the comparison between our predictions and CDF data.

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