Naturalness without new particles
Keyword(s):
Abstract We demonstrate that the physics which resolves naturalness problems need not take the form of new particles and can sometimes manifest itself as higher dimensional operators. As a proof of principle, we present a simple model where the scale of new particles is parametrically separated from that estimated via naturalness arguments applied to self-quartic couplings. In this example, new particles appear far above the scale $$ m/\sqrt{\lambda } $$ m / λ , where m is the mass of the particle and λ is its self-quartic coupling. The shift symmetry responsible for resolving the naturalness problem involves higher dimensional operators rather than new particles.
Keyword(s):
1976 ◽
Vol 37
(2)
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pp. 149-158
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Keyword(s):
2011 ◽
Vol E94-B
(11)
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pp. 3125-3127
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