DPNU-98-15, TMUP-HEL-9804, DUKE-TH-98-159, DOE/ER/40561-7-INT98 Anomaly Induced Domain Formation of Disoriented Chiral Condensates
نویسندگان
چکیده
We discuss the e ect of chiral anomaly as a possible mechanism for triggering formation of domains of disoriented chiral condensate (DCC) in relativistic heavy ion collisions. The anomalous 0 ! 2 coupling and the strong, Lorentz [email protected] [email protected] [email protected]
منابع مشابه
Anomaly Induced Domain Formation of Disoriented Chiral Condensates
We discuss the effect of chiral anomaly as a possible mechanism for triggering formation of domains of disoriented chiral condensate (DCC) in relativistic heavy ion collisions. The anomalous π → 2γ coupling and the strong, Lorentz ∗[email protected] †[email protected] ‡[email protected] 1 contracted electromagnetic fields of the heavy ions combine to produce the “anoma...
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BERNDT MÜLLER Department of Physics Duke University Durham, NC 27708-0305, USA We discuss the various physics aspects of hypothetical, coherent excitations of the pion field caused by spontaneously generated local distortions of the chiral order parameter. Such distortions, which may occur in the expansion of a hot fireball created in relativistic nuclear collisions, may be influenced or even t...
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No conventional picture of nucleus-nucleus collisions has yet been able to explain the abundance of Ω and Ω̄ in central collisions between Pb nuclei at 158 A GeV at the CERN SPS. We argue that such a deviation from predictions of statistical thermal models and numerical simulations is evidence that they are produced as topological defects in the form of skyrmions arising from the formation of di...
متن کاملUw/pt–96–04 Doe/er/40561-254-int96-00-123
We consider anomaly free combinations of chiral fermions coupled to U(1) gauge fields on a 2D torus first in the continuum and then on the lattice in the overlap formulation. Both in the continuum and on the lattice, when the background consists of sufficiently large constant gauge potentials the action induced by the fermions varies significantly under certain singular gauge transformations. “...
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We study the production of photons through the non-equilibrium relaxation of a disoriented chiral condensate. We propose that to search for nonequilibrium photons in the direct photon measurements of heavy-ion collisions can be a potential test of the formation of disoriented chiral condensates. PACS number(s): 11.30.Qc, 11.30.Rd, 11.40.Ha Typeset using REVTEX E-mail address: [email protected]...
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تاریخ انتشار 1998