STATISTICS OF BIRTH PIONS FROM THE HADRON "FIREBALL"

2019 ◽  
pp. 6-10
Author(s):  
A.V. Chizhov ◽  
E.A. Kasyanova
Keyword(s):  
Coherent State ◽  
Thermal Equilibrium ◽  
Pion Production ◽  
The State ◽  
Multiple Birth ◽  
High Energies ◽  
Hadronization Process

The paper studies the statistics of pion production in the processes of inelastic hadronhadron collisions at high energies. It is assumed that the multiple birth of particles occurs as a result of the hadronization process of the quark-gluon "fireball". Based on the two selected states – the state of thermal equilibrium and the coherent state – the statistics of the production of pions is calculated

Collision centrality dependencies of charged pion production in 12C+ 181 Ta collisions at 4.2 A GeV/c

2018 ◽  
Vol 27 (11) ◽  
pp. 1850092 ◽  
Author(s):  
Akhtar Iqbal ◽  
Khusniddin K. Olimov ◽  
Kosim Olimov ◽  
Mushtaq Ahmad ◽  
Sh. Z. Kanokova ◽  
...  
Keyword(s):  
Simple Model ◽  
Pion Production ◽  
Charged Pion ◽  
Heavy Ion ◽  
Emission Angle ◽  
Collision System ◽  
High Energies ◽  
Collision Centrality ◽  
Ion Collisions ◽  
Charged Pions

The collision centrality dependencies of the average kinematical characteristics of the negative and positive pions, produced in [Formula: see text] collisions at [Formula: see text], were investigated. The ratio [Formula: see text] proved to be [Formula: see text], [Formula: see text] and [Formula: see text] in the peripheral, semicentral, and central [Formula: see text] collision events, respectively, decreasing noticeably with increasing collision centrality. The suppression (decrease) of the ratio [Formula: see text] was observed in the semicentral and central [Formula: see text] collisions as compared to the ratio [Formula: see text], estimated using the simple model for [Formula: see text] collision system. The ratio [Formula: see text] estimated using the simple model agreed well with the corresponding ratio [Formula: see text], estimated for [Formula: see text] collisions at [Formula: see text] based on the Wounded Nucleon Model (WNM). Comparison of the emission angle as well as momentum distributions of the charged pions in the peripheral and central [Formula: see text] collisions revealed the significant decrease of the fraction of the relatively fast charged pions (with smaller emission angles) and increase of the fraction of the relatively slow charged pions (with larger emission angles) with an increase in collision centrality. The results of the present analysis can be useful for analysis of the centrality dependence of the charged pion production in heavy ion collisions at high energies.

scholarly journals XIX. On the occlusion of oxygen and hydrogen by platinum black. - Part I

1895 ◽  
Vol 186 ◽  
pp. 657-693 ◽  
Keyword(s):  
Coherent State ◽  
Periodic Table ◽  
The State ◽  
Platinum Black ◽  
Platinum Metals ◽  
Porous Bodies

The word “ occlusion ” was first used by Graham, to signify the absorption of, or shutting up, of gases in solid substances. Many porous bodies, such as charcoal, possess this property, and it is also to be met with among the metals, pre-eminently among the metals belonging to the eighth group of the Periodic Table, and especially among the platinum metals. Platinum in the coherent state, and also in the state of sponge, has been very fully investigated by Graham, in his classical researches. A large number of observations on platinum black are also on record, but these, for the most part, have been made with impure material, and the results are often contradictory.

scholarly journals Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Stefano Olivares ◽  
Alessia Allevi ◽  
Maria Bondani
Keyword(s):  
Coherent State ◽  
Direct Detection ◽  
The State ◽  
Gaussian State ◽  
Classical State ◽  
Phase Sensitive ◽  
Photon Subtraction ◽  
Non Gaussian

AbstractMultiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive) Glauber-Sudarshan Prepresentation. We theoretically and experimentally demonstrate that, despite its simplicity, this class of conditional states cannot be fully characterized by direct detection of photon numbers. In particular, the non-Gaussianity of the state is a characteristics that must be assessed by phase-sensitive measurements. We also show that the non-Gaussianity of conditional states can be manipulated by choosing suitable conditioning values and composition of phase-averaged states.

NONCLASSICAL EFFECTS OF THE STATES GENERATED BY EXCITATIONS ON A COHERENT STATE OF A HARMONIC OSCILLATOR IN A FINITE-DIMENSIONAL HILBERT SPACE

2005 ◽  
Vol 19 (16) ◽  
pp. 779-784
Author(s):  
YUAN-XING LI ◽  
QIN-MEI WANG ◽  
JING-BO XU
Keyword(s):  
Hilbert Space ◽  
Coherent State ◽  
Harmonic Oscillator ◽  
Physical Properties ◽  
The State ◽  
Photon Statistics ◽  
Finite Dimensional ◽  
Dimensional Hilbert Space ◽  
Finite Dimensional Hilbert Space

The mathematical and physical properties of the states which are generated by excitations on the coherent state of a harmonic oscillator in a finite-dimensional Hilbert space are studied. It is shown that the state exhibits squeezing in one of the quadratures of the field and sub-Poissonian photon statistics.

Education Issues; Twin Study Summaries; Famous Twin Babies and Famous Twins

2005 ◽  
Vol 8 (4) ◽  
pp. 409-414 ◽  
Author(s):  
Nancy L. Segal
Keyword(s):  
Test Performance ◽  
Twin Study ◽  
Academic Misconduct ◽  
The State ◽  
Identical Twins ◽  
Multiple Birth ◽  
Birth Parents ◽  
Similar Test ◽  
Educational Issues ◽  
Special Relevance

AbstractTwo educational issues of special relevance to twins and their families are reviewed. The first concerns newly passed legislation in the state of Minnesota allowing multiple birth parents to decide if their children should be placed in the same or separate classrooms. The second concerns a professor's accusations of identical twins' academic misconduct, based upon the twins' similar test performance. Next, reviews of timely research in the areas of religiosity, disease, conjoined twinning and autism are presented. Finally, some recent events featuring well-known twins are presented.

scholarly journals The Birth and Development of the Polish Integration Policy

2020 ◽  
Vol 4 (2) ◽  
pp. 79-93
Author(s):  
Yulia Hoika ◽  
Karolina Koviazina
Keyword(s):  
Nongovernmental Organizations ◽  
Coherent State ◽  
State Policy ◽  
Migration Policy ◽  
The State ◽  
Integration Policy ◽  
Current State ◽  
Polish Society

The article describes the origin and current state of Polish integration policy as a part of the state migration policy. The authors provide a list of state bodies and nongovernmental organizations involved in the inclusion of immigrants into Polish society, evaluate their activities, and also declare the need to create a coherent state policy for the integration of foreigners.

Single pion production in charged current $$\bar vD$$ interactions at high energies

1983 ◽  
Vol 20 (2) ◽  
pp. 95-100 ◽  
Author(s):  
D. Allasia ◽  
C. Angelini ◽  
S. Barlag ◽  
L. Bertanza ◽  
A. Bigi ◽  
...  
Keyword(s):  
Pion Production ◽  
Charged Current ◽  
High Energies
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