The signatures of the new particles $$h_{2}$$ h2 and $$Z^{}_{\mu \tau }$$ Zμτ at e-p colliders in the $${U(1)}_{L^{}_{\mu } - L^{}_{\tau } }$$ U(1)Lμ-Lτ model
Abstract Considering the superior performances of the future e-p colliders, LHeC and FCC-eh, we discuss the feasibility of detecting the extra neutral scalar $$h_{2}$$ h2 and the light gauge boson $$Z^{}_{\mu \tau }$$ Zμτ , which are predicted by the $${U(1)}_{L^{}_{\mu } - L^{}_{\tau }}$$ U(1)Lμ-Lτ...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2019-11-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-019-7432-x |
| Summary: | Abstract Considering the superior performances of the future e-p colliders, LHeC and FCC-eh, we discuss the feasibility of detecting the extra neutral scalar $$h_{2}$$ h2 and the light gauge boson $$Z^{}_{\mu \tau }$$ Zμτ , which are predicted by the $${U(1)}_{L^{}_{\mu } - L^{}_{\tau }}$$ U(1)Lμ-Lτ model. Taking into account the experimental constraints on the relevant free parameters, we consider all possible production channels of $$h_{2}$$ h2 and $$Z^{}_{\mu \tau }$$ Zμτ at e-p colliders and further investigate their observability through the optimal channels in the case of the beam polarization $$\hbox {P}(e^{-})= -0.8$$ P(e-)=-0.8 . We find that the signal significance above $$5\sigma $$ 5σ of $$h_{2}$$ h2 as well as $$Z^{}_{\mu \tau }$$ Zμτ detecting can be achieved via process and a $$5\sigma $$ 5σ sensitivity of $$Z^{}_{\mu \tau }$$ Zμτ detecting can be gained via process at e-p colliders with appropriate parameter values and a designed integrated luminosity. However, the signals of $$h_{2}$$ h2 decays into pair of SM particles are difficult to be detected. |
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| ISSN: | 1434-6044 1434-6052 |