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Title: Analysis of dilepton angular distributions in a parity breaking medium
Author: Andrianov, Alexander A.
Andrianov, Vladimir A.
Espriu, D. (Domènec)
Planells Noguera, Xumeu
Keywords: Cosmologia
Issue Date: Aug-2014
Publisher: American Physical Society
Abstract: We investigate how local parity breaking due to large topological fluctuations may affect hadron physics. A modified dispersion relation is derived for the lightest vector mesons ρ and ω. They exhibit a mass splitting depending on their polarization. We present a detailed analysis of the angular distribution associated to the lepton pairs created from these mesons searching for polarization dependencies. We propose two angular variables that carry information related to the parity breaking effect. Possible signatures for experimental detection of local parity breaking that could potentially be seen by the PHENIX and STAR collaborations are discussed.
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It is part of: Physical Review D, 2014, vol. 90, num. 3, p. 034024-1 -034024-7
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ISSN: 1550-7998
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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