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Probing for chiral Z^prime gauge boson through scattering measurement experiments

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arxiv 2307.09737 v2 pith:GOF2E27Y submitted 2023-07-19 hep-ph astro-ph.HEhep-ex

Probing for chiral Z^prime gauge boson through scattering measurement experiments

classification hep-ph astro-ph.HEhep-ex
keywords gaugedataexperimentsprimebeam-dumpbosonscatteringscenarios
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Motivated by the observation of tiny neutrino mass can not be explained within the framework of Standard Model (SM), we consider extra gauge extended scenarios in which tiny neutrino masses are generated through seesaw mechanism. These scenarios are equipped with beyond the standard model (BSM) neutral gauge boson called $Z^\prime$ in the general $U(1)_X$ symmetry which is a linear combination of $U(1)_Y$ and $U(1)_{B-L}$. In this case, left and right handed fermions interact differently with the $Z^\prime$. The $Z^\prime$ gives rise to different processes involving neutrino-nucleon, neutrino-electron, electron-nucleus and electron-muon scattering processes. By comparing with proton, electron beam-dump experiments data, recast data from searches for the long-lived and dark photon at BaBaR, LHCb and CMS experiments, the electron and muon $g-2$ data, and the data of the dilepton and dijet searches at the LEP experiment, we derive bounds on the gauge coupling and the corresponding gauge boson mass for different $U(1)_X$ charges and evaluate the prospective limits from the future beam-dump scenarios at DUNE, FASER(2) and ILC. We conclude that large parameter regions could be probed by scattering, beam-dump and collider experiments in future.

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Forward citations

Cited by 3 Pith papers

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  2. Improved limits on a new $Z'$ in $B-L$ scenarios with the NA64 experiment at CERN

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    NA64 sets improved upper limits on g_{B-L} for sub-GeV Z' using 9.4e11 electrons on target, exceeding prior neutrino-scattering bounds in the unbroken U(1)_{B-L} scenario.