Temat: particle correlations - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Charge balance functions and the transverse flow
Autorzy:: Bożek, P.
Powiązania:: https://bibliotekanauki.pl/articles/148366.pdf
Data publikacji:: 2006
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: ultrarelativistic heavy-ion collisions
particle correlations
collective flow
Opis:: Correlations between opposite charge particles emitted in ultrarelativistic heavy-ion collisions can be used as a measure of the transverse flow present at the time of the decoupling of the charged pair. The width of the charge balance function in azimuthal angle depends on the transverse velocity and the temperature of the emitting source. Asymmetry in the balance function between in plane and out of plane emission can serve as a probe of the azimuthal asymmetry of the velocity field in the source.
Źródło:: Nukleonika; 2006, 51,suppl.3; 51-54
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Correlation femtoscopy
Autorzy:: Lednický, R.
Powiązania:: https://bibliotekanauki.pl/articles/147326.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: particle
emission
correlations
spin
flow
delay
interaction
Opis:: Recent results on particle momentum and spin correlations are discussed, particularly, in view of the role played by the effect of final state interaction. It is demonstrated that this effect allows for (i) correlation femtoscopy with unlike particles; (ii) study of the relative space-time asymmetries in the production of different particle species (e.g., relative time delays or spatial shifts due to collective flows); (iii) study of the particle strong interaction hardly accessible by other means (e.g., in logical and logical and system).
Źródło:: Nukleonika; 2004, 49,suppl.2; 3-6
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: How to measure specific heat using event-by-event average pT fluctuations
Autorzy:: Tannenbaum, M.
Powiązania:: https://bibliotekanauki.pl/articles/148439.pdf
Data publikacji:: 2006
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: relativistic heavy-ion collisions
event-by-event fluctuations
specific heat
particle correlations
Opis:: A simple way to visualize event-by-event average pT fluctuations is by assuming that each collision has a different temperature parameter (inverse pT slope) and that the ensemble of events has a temperature distribution about the mean, less than T greater than , with standard deviation sigmaT. PHENIX characterizes the non-random fluctuation of MpT, the event-by-event average pT, by FpT, the fractional difference of the standard deviation of the data from that of a random sample obtained with mixed events. This can be related to the temperature fluctuation: FpT = sigmaMpTdata/sigmaMpTrandom - 1 ~ (less than eta greated than-1)sigmaT 2/ less thanT greated than 2. Combining this with the Gavai et al. [5] and Korus et al. [6] definitions of the specific heat per particle, a simple relationship is obtained: cv/T3 = less than eta greated than/less than Ntot greated than )Ĺ(1/FpT). FpT is measured with a fraction less than eta greated than)Ntot* of the total particles produced, a purely geometrical factor representing the fractional acceptance, ~1/33 in PHENIX. Gavai et al. [5] predict that cv/T3 = 15, which corresponds to FpT ~ 0.20% in PHENIX, which may be accessible by measurements of MpT in the range 0.2 d pT d 0.6 GeV/c. In order to test the Gavai et al. prediction that cv/T3 is reduced in a QGP compared to the ideal gas value (15 compared to 21), precision measurements of FpT in the range 0.20% for 0.2 less-than or equal to pT greater-than or equal to 0.6 GeV/c may be practical.
Źródło:: Nukleonika; 2006, 51,suppl.3; 93-97
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Methods for close-track efficiency study
Autorzy:: Mikhailov, K.
Stavinskiy, A.
Vlassov, A.
Mestayer, M.
Powiązania:: https://bibliotekanauki.pl/articles/147426.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: particle correlations
close track efficiency
Opis:: We describe two new methods for the study of close track efficiency. One is based on the study of a correlation function for particles with different masses as a function of their relative momenta in the laboratory reference system. The other method is based on the analysis of artificial events, constructed by merging raw data from separate events. Both methods and the standard Monte Carlo method were applied to data from the CLAS detector at Jefferson Laboratory. All three methods provide the same result for close track efficiency with an accuracy sufficient for practical application.
Źródło:: Nukleonika; 2004, 49,suppl.2; 85-88
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Stable Bose-Einstein correlations
Autorzy:: Csörgo, T.
Hegyi, S.
Zajc, W.
Powiązania:: https://bibliotekanauki.pl/articles/147334.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: particle correlations
Bose-Einstein correlations
HBT
Lévy distributions
multiparticle production in high energy particle and nuclear physics
Opis:: The shape of Bose-Einstein (or HBT) correlation functions is determined for the case when particles are emitted from a stable source, obtained after convolutions of large number of elementary random processes. The two-particle correlation function is shown to have a stretched exponential shape, characterized by the Lévy index of stability 0 < alfa less-than or equal to 2 and the scale parameter R. The normal, Gaussian shape corresponds to a particular case, when alfa = 2 is selected. The asymmetry parameter of the stable source, beta is shown to be proportional to the angle, measured by the normalized three-particle cumulant correlations.
Źródło:: Nukleonika; 2004, 49,suppl.2; 7-10
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Sum rule of the correlation function
Autorzy:: Mrówczyński, S.
Maj, R.
Powiązania:: https://bibliotekanauki.pl/articles/147374.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: particle correlations
nuclear collisions
Opis:: We discuss a sum rule satisfied by the correlation function of two particles with small relative momenta. We first derive the sum rule, which results from the completeness condition of the quantum states of the two particles, and then we discuss it for the case of strongly interacting pair of neutron and proton and for the Coulomb system of two charged particles.
Źródło:: Nukleonika; 2004, 49,suppl.2; 27-31
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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