scholarly journals Renormalization group evolution of Dirac neutrino masses

2005 ◽  
Vol 2005 (09) ◽  
pp. 081-081 ◽  
Author(s):  
Manfred Lindner ◽  
Michael Ratz ◽  
Michael Andreas Schmidt
Keyword(s):  
Renormalization Group ◽  
Neutrino Masses ◽  
Dirac Neutrino ◽  
Group Evolution

scholarly journals Renormalization group evolution of neutrino masses and mixing in the Type-III seesaw mechanism

2009 ◽  
Vol 820 (1-2) ◽  
pp. 116-147 ◽  
Author(s):  
Joydeep Chakrabortty ◽  
Amol Dighe ◽  
Srubabati Goswami ◽  
Shamayita Ray
Keyword(s):  
Renormalization Group ◽  
Neutrino Masses ◽  
Seesaw Mechanism ◽  
Type Iii ◽  
Group Evolution

scholarly journals Threshold effects and renormalization group evolution of neutrino parameters in TeV scale seesaw models

2014 ◽  
Vol 29 (22) ◽  
pp. 1450114 ◽  
Author(s):  
Srubabati Goswami ◽  
Subrata Khan ◽  
Sasmita Mishra
Keyword(s):  
Renormalization Group ◽  
Numerical Study ◽  
Threshold Effect ◽  
Factorization Method ◽  
Neutrino Masses ◽  
Threshold Effects ◽  
Mixing Angles ◽  
Group Evolution ◽  
Analytic Expressions

We consider the threshold effect on the renormalization group (RG) evolution of the neutrino masses and mixing angles in TeV scale seesaw models. We obtain the analytic expressions using the factorization method in the presence of threshold effects. We also perform numerical study of RG effects in two specific low scale seesaw models following the bottom-up approach and ascertain the role of seesaw thresholds in altering the values of masses and mixing angles during RG evolution.

scholarly journals RENORMALIZATION GROUP EVOLUTION OF NEUTRINO MASSES AND MIXING IN SEESAW MODELS

2010 ◽  
Vol 25 (23) ◽  
pp. 4339-4384 ◽  
Author(s):  
SHAMAYITA RAY
Keyword(s):  
Renormalization Group ◽  
High Energy ◽  
Energy Scale ◽  
Low Energy ◽  
Effective Theory ◽  
Neutrino Masses ◽  
Mixing Parameters ◽  
Group Evolution ◽  
High Energy Scale ◽  
The Masses

We consider different extensions of the Standard Model which can give rise to the small active neutrino masses through seesaw mechanisms, and their mixing. These tiny neutrino masses are generated at some high energy scale by the heavy seesaw fields which then get sequentially decoupled to give an effective dimension-5 operator at the low energy. The renormalization group evolution of the masses and the mixing parameters of the three active neutrinos in the high energy as well as the low energy effective theory is reviewed in this paper.

scholarly journals Renormalization Group evolution from on-shell SMEFT

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Minyuan Jiang ◽  
Teng Ma ◽  
Jing Shu
Keyword(s):  
Field Theory ◽  
Renormalization Group ◽  
Standard Model ◽  
Effective Field Theory ◽  
Effective Field ◽  
High Dimensional ◽  
Anomalous Dimensions ◽  
The Standard Model ◽  
Group Evolution

Abstract We describe the on-shell method to derive the Renormalization Group (RG) evolution of Wilson coefficients of high dimensional operators at one loop, which is a necessary part in the on-shell construction of the Standard Model Effective Field Theory (SMEFT), and exceptionally efficient based on the amplitude basis in hand. The UV divergence is obtained by firstly calculating the coefficients of scalar bubble integrals by unitary cuts, then subtracting the IR divergence in the massless bubbles, which can be easily read from the collinear factors we obtained for the Standard Model fields. Examples of deriving the anomalous dimensions at dimension six are presented in a pedagogical manner. We also give the results of contributions from the dimension-8 H4D4 operators to the running of V+V−H2 operators, as well as the running of B+B−H2D2n from H4D2n+4 for general n.

scholarly journals Naturally small Dirac neutrino masses in supergravity

2005 ◽  
Vol 71 (3) ◽  
Author(s):  
Steven Abel ◽  
Athanasios Dedes ◽  
Kyriakos Tamvakis
Keyword(s):  
Neutrino Masses ◽  
Dirac Neutrino

scholarly journals The $$B-L$$ B - L scotogenic models for Dirac neutrino masses

2017 ◽  
Vol 77 (12) ◽  
Author(s):  
Weijian Wang ◽  
Ruihong Wang ◽  
Zhi-Long Han ◽  
Jin-Zhong Han
Keyword(s):  
Neutrino Masses ◽  
Dirac Neutrino

scholarly journals Renormalization-group evolution of new physics contributions to (semi)leptonic meson decays

2017 ◽  
Vol 772 ◽  
pp. 777-785 ◽  
Author(s):  
Martín González-Alonso ◽  
Jorge Martin Camalich ◽  
Kin Mimouni
Keyword(s):  
Renormalization Group ◽  
New Physics ◽  
Meson Decays ◽  
Group Evolution
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