Clockwork seesaw mechanisms

Seong Chan Park; Chang Sub Shin

doi:10.1016/j.physletb.2017.11.057

Clockwork seesaw mechanisms

Seong Chan Park, Chang Sub Shin

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We propose new mechanisms for small neutrino masses based on clockwork mechanism. The Standard Model neutrinos and lepton number violating operators communicate through the zero mode of clockwork gears, one of the two couplings of the zero mode is exponentially suppressed by clockwork mechanism. Including all known examples for the clockwork realization of the neutrino masses, different types of models are realized depending on the profile and chirality of the zero mode fermion. Each type of realization would have phenomenologically distinctive features with the accompanying heavy neutrinos.

Original language	English
Pages (from-to)	222-226
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	776
DOIs	https://doi.org/10.1016/j.physletb.2017.11.057
Publication status	Published - 2018 Jan 10

Bibliographical note

Funding Information:
This work was initiated at the CERN-CKC workshop “What's going on at the weak scale?” in Jeju Island, Korea in June 2017. SCP is supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government ( MSIP ) (No. 2016R1A2B2016112 ). CSS acknowledges the support from the Korea Ministry of Education, Science and Technology , Gyeongsangbuk-Do and Pohang City for Independent Junior Research Groups at the Asia Pacific Center for Theoretical Physics. CSS is also supported by the Basic Science Research Program through the NRF Grant (No. 2017R1D1A1B04032316 ).

Funding Information:
This work was initiated at the CERN-CKC workshop “What's going on at the weak scale?” in Jeju Island, Korea in June 2017. SCP is supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2016R1A2B2016112). CSS acknowledges the support from the Korea Ministry of Education, Science and Technology, Gyeongsangbuk-Do and Pohang City for Independent Junior Research Groups at the Asia Pacific Center for Theoretical Physics. CSS is also supported by the Basic Science Research Program through the NRF Grant (No. 2017R1D1A1B04032316).

Publisher Copyright:
© 2017

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2017.11.057

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abstract = "We propose new mechanisms for small neutrino masses based on clockwork mechanism. The Standard Model neutrinos and lepton number violating operators communicate through the zero mode of clockwork gears, one of the two couplings of the zero mode is exponentially suppressed by clockwork mechanism. Including all known examples for the clockwork realization of the neutrino masses, different types of models are realized depending on the profile and chirality of the zero mode fermion. Each type of realization would have phenomenologically distinctive features with the accompanying heavy neutrinos.",

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note = "Funding Information: This work was initiated at the CERN-CKC workshop “What's going on at the weak scale?” in Jeju Island, Korea in June 2017. SCP is supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government ( MSIP ) (No. 2016R1A2B2016112 ). CSS acknowledges the support from the Korea Ministry of Education, Science and Technology , Gyeongsangbuk-Do and Pohang City for Independent Junior Research Groups at the Asia Pacific Center for Theoretical Physics. CSS is also supported by the Basic Science Research Program through the NRF Grant (No. 2017R1D1A1B04032316 ). Funding Information: This work was initiated at the CERN-CKC workshop “What's going on at the weak scale?” in Jeju Island, Korea in June 2017. SCP is supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2016R1A2B2016112). CSS acknowledges the support from the Korea Ministry of Education, Science and Technology, Gyeongsangbuk-Do and Pohang City for Independent Junior Research Groups at the Asia Pacific Center for Theoretical Physics. CSS is also supported by the Basic Science Research Program through the NRF Grant (No. 2017R1D1A1B04032316). Publisher Copyright: {\textcopyright} 2017",

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N2 - We propose new mechanisms for small neutrino masses based on clockwork mechanism. The Standard Model neutrinos and lepton number violating operators communicate through the zero mode of clockwork gears, one of the two couplings of the zero mode is exponentially suppressed by clockwork mechanism. Including all known examples for the clockwork realization of the neutrino masses, different types of models are realized depending on the profile and chirality of the zero mode fermion. Each type of realization would have phenomenologically distinctive features with the accompanying heavy neutrinos.

AB - We propose new mechanisms for small neutrino masses based on clockwork mechanism. The Standard Model neutrinos and lepton number violating operators communicate through the zero mode of clockwork gears, one of the two couplings of the zero mode is exponentially suppressed by clockwork mechanism. Including all known examples for the clockwork realization of the neutrino masses, different types of models are realized depending on the profile and chirality of the zero mode fermion. Each type of realization would have phenomenologically distinctive features with the accompanying heavy neutrinos.

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Clockwork seesaw mechanisms

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