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Topological String in Quantum-Chromodynamical Chiral Phase Transitions |
| LI Yun-De |
| Department of Physics, Yunnan University, Kunming 650091 |
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| Cite this article: |
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LI Yun-De 2005 Chin. Phys. Lett. 22 1300-1302 |
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Abstract It is pointed out that if in heavy ion collision processes, the quark-gluon plasma SU(2) chiral phase transition really takes place and the phase transition is a second order. Then the topological string, i.e., the π string, will be formed. The main effect of this phenomenon is that there will be a number of pions produced by decay of the π string in the final state. The pions from the decay of the π string lead to the same effect of decreasing the Hanbury-Brown-Twiss peak in two-pion spectra which is just as that of the long-lived hadronic resonances. At relativistic heavy-ion collision and large hadron collision energies, it is expected that the factors are about α ～ 0.7-0.9 and α ～ 0.6-0.85, respectively.
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| Keywords:
98.80.Cq
11.27.+d
25.75.-q
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Published: 01 May 2005
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| PACS: |
98.80.Cq
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(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
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11.27.+d
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(Extended classical solutions; cosmic strings, domain walls, texture)
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25.75.-q
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(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
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