Dpes massless QCD have vacuum energy?

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It is widely thought that this question has a positive answer, but we argue that the support for this belief from both experiment and theory is weak or nonexistent. We then list some of the ramifications of a negative answer.
8 pages, no figures, version to appear in NJP

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High Energy Physics - Phenomenology, High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/200644

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0708.1057
 http://arxiv.org/abs/0708.1057
 NewJ.Phys.10:053040,2008
 doi:10.1088/1367-2630/10/5/053040

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arXiv