34,712 research outputs found
Initial Parton Distribution just after Heavy Ion Collisions
We study the initial distribution of a parton system which is formed just
after relativistic heavy ion collision by the elastic scattering among the
constituent partons in details and analyze the baryon and strangeness contents
of the primary parton system. We present the rapidity and energy distributions
of the system.Comment: 17 page
Optical properties of the charge-density-wave polychalcogenide compounds Te (=Nd, Sm and Gd)
We investigate the rare-earth polychalcogenide Te (=Nd, Sm and
Gd) charge-density-wave (CDW) compounds by optical methods. From the absorption
spectrum we extract the excitation energy of the CDW gap and estimate the
fraction of the Fermi surface which is gapped by the formation of the CDW
condensate. In analogy to previous findings on the related Te (n=2 and
3) families, we establish the progressive closing of the CDW gap and the
moderate enhancement of the metallic component upon chemically compressing the
lattice
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