Leptogenesis and residual CP symmetry
Leptogenesis and residual CP symmetry
复制标题
轻体发生和剩余 CP 对称性
DOI:
10.1007/jhep03(2016)206
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发表时间:
2016-02
影响因子:
5.4
通讯作者:
King, Stephen F.
中科院分区:
文献类型:
--
作者:
Chen, Peng;Ding, Giu-Jun;King, Stephen F.
A bstractWe discuss flavour dependent leptogenesis in the framework of lepton flavour models based on discrete flavour and CP symmetries applied to the type-I seesaw model. Working in the flavour basis, we analyse the case of two general residual CP symmetries in the neutrino sector, which corresponds to all possible semi-direct models based on a preserved Z2 in the neutrino sector, together with a CP symmetry, which constrains the PMNS matrix up to a single free parameter which may be fixed by the reactor angle. We systematically study and classify this case for all possible residual CP symmetries, and show that the R-matrix is tightly constrained up to a single free parameter, with only certain forms being consistent with successful leptogenesis, leading to possible connections between leptogenesis and PMNS parameters. The formalism is completely general in the sense that the two residual CP symmetries could result from any high energy discrete flavour theory which respects any CP symmetry. As a simple example, we apply the formalism to a high energy S4 flavour symmetry with a generalized CP symmetry, broken to two residual CP symmetries in the neutrino sector, recovering familiar results for PMNS predictions, together with new results for flavour dependent leptogenesis.
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DOI:
10.1140/epjc/s10052-014-2753-2
发表时间:
2013-03
期刊:
The European Physical Journal C
影响因子:
--
作者:
F. Feruglio;C. Hagedorn;R. Ziegler
通讯作者:
F. Feruglio;C. Hagedorn;R. Ziegler
DOI:
10.1016/j.nuclphysb.2013.07.003
发表时间:
2013-06
期刊:
Nuclear Physics
影响因子:
--
作者:
C. Luhn
通讯作者:
C. Luhn
影响因子:
5
作者:
S. Pascoli;S. Pascoli;S. Petcov;A. Riotto
通讯作者:
S. Pascoli;S. Pascoli;S. Petcov;A. Riotto
影响因子:
5.4
作者:
Cai-Chang Li;Gui-Jun Ding
通讯作者:
Gui-Jun Ding
DOI:
10.1007/jhep06(2014)023
发表时间:
2014-04
期刊:
JHEP
影响因子:
--
作者:
Gui-Jun Ding;Ye-Ling Zhou
通讯作者:
Ye-Ling Zhou