Squeezed fermions at relativistic heavy ion colliders

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Panda, P. K.
Csorgo, T.
Hama, Y.
Krein, G.
Padula, S. S.
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Elsevier B.V.
Large back-to-back correlations of observable fermion-anti-fermion pairs are predicted to appear, if the mass of the fermions is modified in a thermalized medium. The back-to-back correlations of protons and anti-protons are experimentally observable in ultra-relativistic heavy ion collisions, similarly to the Andreev reflection of elections off the boundary of a superconductor. While quantum statistics suppresses the probability of observing pairs of fermions with nearby momenta, the fermionic back-to-back correlations are positive and of similar strength to bosonic back-to-back correlations. (C) 2001 Elsevier B.V. B,V, All rights reserved.
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Physics Letters B. Amsterdam: Elsevier B.V., v. 512, n. 1-2, p. 49-56, 2001.