Target rescattering corrections to heavy flavour production off nuclei in the projectile fragmentation region

1995 ◽  
Vol 65 (1) ◽  
pp. 105-110 ◽  
Author(s):  
M. Braun
Keyword(s):  
Projectile Fragmentation ◽  
Fragmentation Region

On transverse momentum spectra of negative pions in 12C+181Ta collisions at 4.2A GeV/c

2014 ◽  
Vol 23 (12) ◽  
pp. 1450084 ◽  
Author(s):  
Khusniddin K. Olimov ◽  
Akhtar Iqbal ◽  
S. L. Lutpullaev ◽  
Imran Khan ◽  
Viktor V. Glagolev ◽  
...  
Keyword(s):  
Transverse Momentum ◽  
Projectile Fragmentation ◽  
Minimum Bias ◽  
Fragmentation Region ◽  
Rapidity Range ◽  
Gaussian Functions ◽  
Collision Centrality ◽  
Hadron Spectra ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra

We studied the dependences of the experimental transverse momentum spectra of the negative pions, produced in minimum bias 12 C +181 Ta collisions at a momentum of 4.2 GeV/c per nucleon, on the collision centrality and the pion rapidity range. To examine quantitatively, the change in the shape of the pt spectra of π- mesons with the change of collision centrality and the pion rapidity range, all the extracted pt spectra were fitted by the four different functions commonly used for describing the hadron spectra. The extracted values of the spectral temperatures T1 and T2 were consistently larger for the pt spectra of π- mesons coming from midrapidity range as compared to those of the negative pions generated in the target and projectile fragmentation regions. The spectral temperatures of the negative pions coming from projectile fragmentation region proved to be larger than the respective temperatures of the negative pions coming from target fragmentation region. The extracted spectral temperatures T1 and T2 of the pt spectra of π- mesons were compatible within the uncertainties for the peripheral, semicentral and central 12 C +181 Ta collision events, selected using the number of participant protons. It was observed that Hagedorn and Boltzmann functions are more appropriate for describing the transverse momentum spectra of the negative pions as contrasted to Simple Exponential and Gaussian functions.

AZIMUTHAL CORRELATION OF SECONDARY PARTICLES FROM 24Mg-NUCLEI COLLISIONS WITH EMULSION AT 4.5A GeV/c

2003 ◽  
Vol 12 (06) ◽  
pp. 781-792 ◽  
Author(s):  
N. N. ABD ALLAH ◽  
S. A. H. ABOU-STEIT ◽  
M. MOHERY ◽  
FU-HU LIU
Keyword(s):  
Correlation Function ◽  
Azimuthal Angle ◽  
Projectile Fragmentation ◽  
Azimuthal Correlation ◽  
Fragmentation Region ◽  
Particle Correlation ◽  
Secondary Particles ◽  
Different Types ◽  
Charged Secondary ◽  
The Impact

A systematic study and statistically significant results of the different types of correlations, for angles, rapidity and rapidity intervals, between various charged secondary particles and projectile fragments produced in the inelastic interactions of 24 Mg with emulsion at 4.5 A GeV/c have been investigated. All types of particles are found to be emitted asymmetrically in the azimuthal plane. This asymmetry increases with decreasing the impact parameter. The two-particle correlation function is found to be positive except in the extreme projectile fragmentation region. It has also been observed that the particles belonging to the different kinematical regions of the nucleus-nucleus interactions (intergroup correlation) have a tendency to be emitted from opposite sides of the azimuthal plane. The azimuthal angle correlations for pairs of charged secondary particles are also studied.

A study of particle–nucleus collisions at 24, 50, and 400 GeV/c

1982 ◽  
Vol 60 (10) ◽  
pp. 1523-1533 ◽  
Author(s):  
H. Khushnood ◽  
M. Irfan ◽  
M. Zafar ◽  
A. Ahmad ◽  
A. R. Khan ◽  
...  
Keyword(s):  
Quark Model ◽  
Target Nucleus ◽  
Incident Energy ◽  
Mass Number ◽  
Projectile Fragmentation ◽  
Fragmentation Region ◽  
Target Fragmentation ◽  
The Mean ◽  
Pseudorapidity Distributions

An attempt has been made to investigate multiplicity, dispersion, and pseudorapidity distributions of shower particles produced in 24, 50, and 400 GeV/c hadron–nucleus collisions. The study of pseudorapidity reveals that with the increase in the mass number of the target nucleus, the excess of particles appears in the target fragmentation region, shifting the maxima of the distributions towards smaller values of rapidity. Further, with the increase in the incident energy, the excess of particles appears in the projectile fragmentation region. Finally, on using the additive quark model, the mean normalized multiplicity has been observed to be independent of the energy and nature of the projectile, suggesting a new kind of scaling in hadron–nucleus collisions.

DISSIPATIVE EFFECTS IN PROJECTILE FRAGMENTATION AND PARTICLES EVAPORATION

1987 ◽  
Vol 48 (C2) ◽  
pp. C2-175-C2-178
Author(s):  
A. BONASERA ◽  
M. DI TORO ◽  
C. GREGOIRE
Keyword(s):  
Projectile Fragmentation ◽  
Dissipative Effects

scholarly journals Primary Projectile Fragmentation Distribution in High Energy Heavy Ion Collisions

1984 ◽  
Vol 71 (6) ◽  
pp. 1429-1431 ◽  
Author(s):  
Y. Kitazoe ◽  
O. Hashimoto ◽  
H. Toki ◽  
Y. Yamamura ◽  
M. Sano
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Projectile Fragmentation ◽  
Ion Collisions

Search for azimuthal asymmetry of π0-meson production in beam fragmentation region on polarized protons and deuterons

1989 ◽  
Author(s):  
V. D. Apokin ◽  
O. V. Astafiev ◽  
Yu. Sh. Bagaturia ◽  
N. I. Belikov ◽  
N. S. Borisov ◽  
...  
Keyword(s):  
Meson Production ◽  
Azimuthal Asymmetry ◽  
Fragmentation Region ◽  
Polarized Protons ◽  
Beam Fragmentation

Sign dependence of spin polarization for secondary fragments produced following intermediate-energy projectile fragmentation

1997 ◽  
Vol 55 (5) ◽  
pp. 2501-2505 ◽  
Author(s):  
P. F. Mantica ◽  
R. W. Ibbotson ◽  
D. W. Anthony ◽  
M. Fauerbach ◽  
D. J. Morrissey ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Intermediate Energy ◽  
Projectile Fragmentation

Study of projectile fragmentation reaction with isochronous mass spectrometry

2015 ◽  
Vol T166 ◽  
pp. 014009 ◽  
Author(s):  
X L Tu ◽  
B Mei ◽  
Y H Zhang ◽  
H S Xu ◽  
Yu A Litvinov ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Projectile Fragmentation ◽  
Fragmentation Reaction ◽  
Isochronous Mass Spectrometry
Sign in / Sign up

Export Citation Format

Share Document