منابع مشابه
The speed of cool soft pions
The speed of cool pions in the chiral limit is analytically computed at low temperature within the imaginary time formalism to two loop order. This evaluation shows a logarithmic dependence in the temperature where the scale within the logarithm is very large compared to the pion decay constant. 11.10.Wx, 12.39.Fe, 14.40.Aq Typeset using REVTEX [email protected] 1 The dynamics of pions in a th...
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In this proceeding we give a pedagogical explanation of recent work of ours. 1 In this section we show how the velocity of pions, or more generally Goldstone bosons, changes with temperature in a thermal distribution. This in itself is pretty trivial, and familiar from other contexts. For examples, the appropriate analogy to Goldstone bosons in a theory which is relativistically invariant at ze...
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We investigate the question of independent and coherent production of pions in high energy processes. A model for coherent production is suggested and the restrictions due to momentum conservation, charge conservation, and isospin conservation are dealt with in detail. A formalism for the isospin analysis of identical pions is developed and applied to coherent states. Results and consequences a...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1996
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.54.r2989