Gauge boson signals at the cosmological collider [PDF]
Journal of High Energy Physics, 2020 We study the production of massive gauge bosons during inflation from the axion-type coupling to the inflaton and the corresponding oscillatory features in the primordial non-Gaussianity.
Lian-Tao Wang, Zhong-Zhi Xianyu
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Dark gauge boson production from neutron stars via nucleon-nucleon bremsstrahlung [PDF]
Journal of High Energy Physics, 2022 We discuss the dark gauge boson emission from neutron stars via nucleon-nucleon bremsstrahlung. Through the rigorous treatment of the effective field theory prescription and the thermal effect, we derive the relevant couplings of dark gauge bosons to ...
Chang Sub Shin, Seokhoon Yun
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Search for a New
Physical Review Letters, 2022 A search for a new Z^{'} gauge boson associated with (un)broken B-L symmetry in the keV-GeV mass range is carried out for the first time using the missing-energy technique in the NA64 experiment at the CERN SPS. From the analysis of the data with 3.22×10^
Yu. Andreev +56 more
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Light gauge boson interpretation for (g − 2) μ and the K L → π 0 + (invisible) anomaly at the J-PARC KOTO experiment [PDF]
Journal of High Energy Physics, 2020 We discuss a list of possible light gauge boson interpretations for the long- standing experimental anomaly in (g − 2) μ and also recent anomalous excess in K L → π 0 + (invisible) events at the J-PARC KOTO experiment.
Yongsoo Jho +4 more
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Elastic positivity vs extremal positivity bounds in SMEFT: a case study in transversal electroweak gauge-boson scatterings [PDF]
, 2021 The positivity bounds, derived from the axiomatic principles of quantum field theory (QFT), constrain the signs of Wilson coefficients and their linear combinations in the Standard Model Effective Field Theory (SMEFT).
Kimiko Yamashita +5 more
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Gauge Dependence of the Gauge Boson Projector [PDF]
Particles, 2020 The propagator of a gauge boson, like the massless photon or the massive vector bosons W± and Z of the electroweak theory, can be derived in two different ways, namely via Green’s functions (semi-classical approach) or via the vacuum expectation value of
Priidik Gallagher +2 more
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Search for muon-philic new light gauge boson at Belle II [PDF]
Journal of High Energy Physics, 2019 Motivated by the long-lasting 3.5σ discrepancy in the anomalous magnetic moment of muon, we consider a new muon-specific force mediated by a light gauge boson, X, with mass m X
Yongsoo Jho +3 more
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General structure of gauge boson propagator and its spectra in a hot magnetized medium [PDF]
European Physical Journal C: Particles and Fields, 2019 Based on transversality condition of gauge boson self-energy we have systematically constructed the general structure of the gauge boson two-point functions using four linearly independent basis tensors in presence of a nontrivial background i.e.
Bithika Karmakar +3 more
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Trilinear gauge boson couplings in the gauge—Higgs unification [PDF]
, 2016 We examine trilinear gauge boson couplings (TGCs) in the context of the SU (3)W ⊗ U (1) gauge–Higgs unification scenario. The TGCs play important roles in probes of the physics beyond the standard model, since they are highly restricted by the ...
Yuki Adachi, Nobuhito Maru
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Bell inequalities and quantum entanglement in weak gauge boson production at the LHC and future colliders [PDF]
The European Physical Journal C, 2023 Quantum entanglement of weak interaction gauge bosons produced at colliders can be explored by computing the corresponding polarization density matrix. To this end, we consider the Higgs boson decays $$H\rightarrow W W^*$$ H → W W ∗ and $$H\rightarrow Z ...
M. Fabbrichesi +3 more
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