SCOAP3 Repository 2 records found  Search took 0.03 seconds. 
1. Observable Windows for the QCD Axion Through the Number of Relativistic Species / Ferreira, Ricardo Z. ; Notari, Alessio
We show that when the QCD axion is directly coupled to quarks with ci/fμaq¯iγμγ5qi, such as in Dine-Fischler-Srednicki-Zhitnitsky models, the dominant production mechanism in the early Universe at temperatures 1 GeVT100 GeV is obtained via qiq¯iga and qigqia, where g are gluons. [...]
Published in Physical Review Letters 120 (2018) 10.1103/PhysRevLett.120.191301 arXiv:1801.06090
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2. Dissipative axial inflation / Notari, Alessio ; Tywoniuk, Konrad
We analyze in detail the background cosmological evolution of a scalar field coupled to a massless abelian gauge field through an axial term ϕ/fγ F ̃F, such as in the case of an axion. [...]
Published in JCAP 1612 (2016) 038 10.1088/1475-7516/2016/12/038 arXiv:1608.06223
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