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Possible CP-violation effects in core-collapse supernovae

Abstract : We study CP-violation effects when neutrinos are present in dense matter, such as outside the proto-neutron star formed in a core-collapse supernova. General arguments based on the Standard Model predict that there are no CP-violating effects at the tree level in core-collapse supernovae, justifying the assumption of ignoring the Dirac delta phase made in most of the literature. Physics beyond the Standard Model, especially flavor-changing interactions might induce CP-violating effects. We analyze this possibility.
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http://hal.in2p3.fr/in2p3-00179948
Contributor : Suzanne Robert <>
Submitted on : Wednesday, October 17, 2007 - 10:41:04 AM
Last modification on : Monday, December 14, 2020 - 4:16:02 PM

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A.B. Balantekin, J. Gava, C. Volpe. Possible CP-violation effects in core-collapse supernovae. Physics Letters B, Elsevier, 2008, 662 (5), pp.396-404. ⟨10.1016/j.physletb.2008.03.038⟩. ⟨in2p3-00179948⟩

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