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论文题目:	Probing neutrino Dirac mass in left right symmetric models at the LHC and next generation colliders
论文题目英文:
作者:	Carlos Helo, Juan; Li, Haolin; Neill, Nicolas A.; Ramsey-Musolf, Michael; Carlos Vasquez, Juan
论文出处:
刊物名称:	PHYSICAL REVIEW D
年:	2019
卷:	99
期:	5
页:	55042
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摘要:	We assess the sensitivity of the LHC, its high energy upgrade, and a prospective 100 TeV hadronic collider to the Dirac Yukawa coupling of the heavy neutrinos in left-right symmetric models (LRSMs). We focus specifically on the trilepton final state in regions of parameter space yielding prompt decays of the right-handed gauge bosons (W-R) and neutrinos (N-R). In the minimal LRSM, the Dirac Yukawa couplings are completely fixed in terms of the mass matrices for the heavy and light neutrinos. In this case, the trilepton signal provides a direct probe of the Dirac mass term for a fixed W-R and N-R mass. We find that while it is possible to discover the W-R at the LHC, probing the Dirac Yukawa couplings will require a 100 TeV pp collider. We also show that the observation of the trilepton signal at the LHC would indicate the presence of a nonminimal LRSM scenario.
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