scholarly journals Exclusive-final-state hadron observables from neutrino-nucleus multinucleon knockout

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
J. E. Sobczyk ◽  
J. Nieves ◽  
F. Sánchez
Keyword(s):  
Final State ◽  
Final State Hadron

scholarly journals Fluctuating shapes of fireballs in heavy-ion collisions

2019 ◽  
Vol 204 ◽  
pp. 03011
Author(s):  
Boris Tomášik ◽  
Jakub Cimerman ◽  
Renata Kopečná ◽  
Martin Schulc
Keyword(s):  
Quark Gluon Plasma ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Event Shape ◽  
Final State ◽  
Ion Collisions ◽  
Final State Hadron ◽  
Novel Method ◽  
Energy And Momentum

We argue that the energy and momentum deposition from hard partons into quark-gluon plasma induces an important contribution to the final state hadron anisotropies. We also advocate a novel method of Event Shape Sorting which allows one to analyse the azimuthal anisotropies of the fireball dynamics in more detail. The application of the method in femtoscopy is demonstrated.

System size dependence of final state hadron sources at E lab = 3.7 A GeV

2020 ◽  
Vol 47 (4) ◽  
pp. 045103
Author(s):  
A Abdelsalam ◽  
M S El-Nagdy ◽  
B M Badawy ◽  
A Saber
Keyword(s):  
Size Dependence ◽  
System Size ◽  
Final State ◽  
Final State Hadron

scholarly journals Development of dark disk model of positron anomaly origin

2018 ◽  
Vol 27 (06) ◽  
pp. 1841010 ◽  
Author(s):  
K. M. Belotsky ◽  
A. A. Kirillov ◽  
M. L. Solovyov
Keyword(s):  
Gamma Radiation ◽  
Galactic Disk ◽  
High Energy ◽  
Observation Data ◽  
Final State ◽  
Disk Model ◽  
Hadron Multiplicity ◽  
Final State Hadron ◽  
Energy Gamma

Dark disk model could be a remedy for dark matter (DM) explanation of positron anomaly (PA) in cosmic rays (CR). The main difficulty in PA explanation relates to cosmic gamma-radiation which is inevitably produced in DM annihilation or decay leading to tension with respective observation data. Introduction of “active” (producing CR) DM component concentrating in galactic disk alleviates this tension. Earlier, we considered 2-lepton modes, with branching ratios being chosen to fit in the best way all the observation data. Here we considered, in the framework of the same dark disk model, two cases: 2-body final state annihilation and 4-body one, and in each case a quark mode is added to the leptonic ones. It is shown that 4-body mode case is a little better than 2-body one from viewpoint of quality of observation data description at the fixed all other parameters (of CR propagation, background, disk height). The values of DM particle mass around 350[Formula: see text]GeV and 500[Formula: see text]GeV are more favorable for 2- and 4-body modes, respectively. Higher values would improve description of data on positrons only but accounting for data on gamma-radiation prevents it because of unwanted more abundant high-energy gamma production. Inclusion of the quark modes improves a little fitting data in both 4- and 2-body mode cases, contrary to naive expectations. In fact, quark mode has a bigger gammas yield than that of most gamma-productive leptonic mode — tau, but they are softer due to bigger final state hadron multiplicity.

THE NLO INCLUSIVE FORWARD HADRON PRODUCTION IN pA COLLISIONS

2012 ◽  
Vol 20 ◽  
pp. 208-213
Author(s):  
GIOVANNI CHIRILLI ◽  
BO-WEN XIAO ◽  
FENG YUAN
Keyword(s):  
Parton Distribution ◽  
Gluon Distribution ◽  
Hadron Production ◽  
Coordinate Space ◽  
Coefficient Function ◽  
Leading Order ◽  
Final State ◽  
Final State Hadron ◽  
Small X ◽  
The One

Recently, by performing the complete next-to-leading order calculation, we have demonstrated the one-loop factorization for inclusive hadron productions in pA collisions in the saturation formalism. The differential cross section is written into a factorization form in the coordinate space at the next-to-leading order, while the naive form of the convolution in the transverse momentum space does not hold. The rapidity divergence with small-x dipole gluon distribution of the nucleus is factorized into the energy evolution of the dipole gluon distribution function, which is known as the Balitsky-Kovchegov equation. Furthermore, the collinear divergences associated with the incoming parton distribution of the nucleon and the outgoing fragmentation function of the final state hadron are factorized into the splittings of the associated parton distribution and fragmentation functions, which allows us to reproduce the well-known DGLAP equation. The hard coefficient function, which is finite and free of divergence of any kind, is evaluated at one-loop order. This result is important, not only for the phenomenological applications to the inclusive hadron production in p-A collisions at RHIC and future LHC experiment, but also for theoretically promoting the rigorous developments towards a complete QCD factorization in small-x physics.

Nanoscale Servo Control for Galvano Scanner Using Final-State Control

2009 ◽  
Vol 129 (9) ◽  
pp. 938-944 ◽  
Author(s):  
Mitsuo Hirata ◽  
Takahiro Kidokoro ◽  
Shinji Ueda
Keyword(s):  
Servo Control ◽  
State Control ◽  
Final State
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