TY - JOUR
T1 - Nature of the photon correlation function for quark-gluon plasma
AU - Srivastava, Dinesh K.
AU - Kapusta, Joseph I.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - The correlation function for intensity interferometry of high energy photons emitted from an expanding quark-gluon plasma is examined. It is reiterated that the correlation function for identical bosons emitted from two point sources is given by 1+cos(kx) and will oscillate between 0 and 2, depending on the values of the difference in the 4-momenta of the two bosons (k) and the difference in their 4-positions (x). Integration over smooth, realistic sources, relevant for very high energy nucleus-nucleus collisions, gives a correlation function which essentially decreases monotonically from 2 to 1 as the momentum difference becomes large. The oscillatory behavior seen in a recent work for certain momentum configurations is caused by an approximation which amounts to including only those sources for which the space-time rapidities are identical to the photon rapidities.
AB - The correlation function for intensity interferometry of high energy photons emitted from an expanding quark-gluon plasma is examined. It is reiterated that the correlation function for identical bosons emitted from two point sources is given by 1+cos(kx) and will oscillate between 0 and 2, depending on the values of the difference in the 4-momenta of the two bosons (k) and the difference in their 4-positions (x). Integration over smooth, realistic sources, relevant for very high energy nucleus-nucleus collisions, gives a correlation function which essentially decreases monotonically from 2 to 1 as the momentum difference becomes large. The oscillatory behavior seen in a recent work for certain momentum configurations is caused by an approximation which amounts to including only those sources for which the space-time rapidities are identical to the photon rapidities.
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U2 - 10.1103/PhysRevC.50.505
DO - 10.1103/PhysRevC.50.505
M3 - Article
AN - SCOPUS:0002339266
VL - 50
SP - 505
EP - 508
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 1
ER -