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Physical Review C
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arXiv.org e-Print Archive
Preprint . 2009
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Physical Review C
Article . 2010 . Peer-reviewed
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https://dx.doi.org/10.48550/ar...
Article . 2009
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Vacuum pseudoscalar susceptibility

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 03 Mar 2010Embargo end date: 01 Jan 2009 English Publisher:American Physical Society (APS)Journal:Physical Review C, volume 81 (issn: 0556-2813, eissn: 1089-490X, Copyright policy )
Authors: Lei Chang; Wei-Min Sun; Hong-Shi Zong; Yu-xin Liu; Craig D. Roberts; Craig D. Roberts; Yuan-mei Shi;

doi: 10.1103/physrevc.81.032201 , 10.48550/arxiv.0912.2687

arXiv: http://arxiv.org/abs/0912.2687

Vacuum pseudoscalar susceptibility

Abstract

We derive a novel model-independent result for the pion susceptibility in QCD via the isovector-pseudoscalar vacuum polarisation. In the neighbourhood of the chiral-limit, the pion susceptibility can be expressed as a sum of two independent terms. The first expresses the pion-pole contribution. The second is identical to the vacuum chiral susceptibility, which describes the response of QCD's ground-state to a fluctuation in the current-quark mass. In this result one finds a straightforward explanation of a mismatch between extant estimates of the pion susceptibility.

4 pages

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Keywords

Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Lattice, High Energy Physics - Phenomenology (hep-ph), Nuclear Theory, High Energy Physics - Lattice (hep-lat), FOS: Physical sciences

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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
17
Average
Average
Top 10%
Green
bronze