On the possibility of a search for the $L_\mu - L_\tau$ gauge boson at Belle-II and neutrino beam experiments

Kaneta, Yuya; Shimomura, Takashi

doi:10.1093/ptep/ptx050

Cited by 81 publications

(86 citation statements)

References 83 publications

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“…We use a large set of experiments ranging from beam-dump and fixed target experiments , e + e − colliders [18,[46][47][48][49][50][51][52][53][54][55][56][57][58][59], to lepton precision experiments [60][61][62][63][64][65][66]. In addition we consider the experimental measurements of solar neutrinos with Borexino [17,67,68], laboratory neutrino experiments such as, e.g. CHARM-II [69,70], COHER-ENT [71,72] and TEXONO [73] as well as tests of neutrino trident production [12,[74][75][76].…”

Section: Jhep07(2018)094mentioning

confidence: 99%

“…In the future, these limits can be improved by measurements of the neutrino trident production cross section at LBNE [13], with the INGRID detector at T2K [17], and by measurements of atmospheric neutrino trident production with Cherenkov telescopes [110]. …”

Section: Limits From Neutrino Experiments 351 Neutrino Trident Prodmentioning

confidence: 99%

“…The resulting constraints are irrelevant for hidden photons with suppressed couplings to neutrinos, but relevant for any other gauge group we consider. Limits from Borexino for the U(1) B−L gauge boson have been derived in [68] and generalized to the case of U(1) Lµ−Lτ gauge bosons in [17]. We adopt the method of [17] and rescale the constraints on U(1) B−L bosons as 24) in which f 1 , f 2 and f 3 denote the fraction of the corresponding mass eigenstates of 7 Be neutrinos at the earth [111], U is the lepton mixing matrix and Q µτ = diag(0, 1, −1), Q µe = diag(1, 0, −1) and Q eτ = diag(1, 0, −1).…”

Section: Borexinomentioning

confidence: 99%

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Hunting all the hidden photons

Bauer¹,

Foldenauer²,

Jaeckel³

2018

J. High Energ. Phys.

375

450

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We explore constraints on gauge bosons of a weakly coupled U(1) B−L , U(1) Lµ−Le , U(1) Le−Lτ and U(1) Lµ−Lτ . To do so we apply the full constraining power of experimental bounds derived for a hidden photon of a secluded U(1) X and translate them to the considered gauge groups. In contrast to the secluded hidden photon that acquires universal couplings to charged Standard Model particles through kinetic mixing with the photon, for these gauge groups the couplings to the different Standard Model particles can vary widely. We take finite, computable loop-induced kinetic mixing effects into account, which provide additional sensitivity in a range of experiments. In addition, we collect and extend limits from neutrino experiments as well as astrophysical and cosmological observations and include new constraints from white dwarf cooling. We discuss the reach of future experiments in searching for these gauge bosons.

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Section: Jhep07(2018)094mentioning

confidence: 99%

Section: Limits From Neutrino Experiments 351 Neutrino Trident Prodmentioning

confidence: 99%

Section: Borexinomentioning

confidence: 99%

See 1 more Smart Citation

Hunting all the hidden photons

Bauer¹,

Foldenauer²,

Jaeckel³

2018

J. High Energ. Phys.

375

450

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“…For other recent studies on gauged U(1) L μ −L τ models, see Refs. [23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Predictions for the neutrino parameters in the minimal gauged $$\hbox {U}(1)_{L_\mu -L_\tau }$$ U ( 1 ) L μ - L τ model

2017

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We study the structure of the neutrino-mass matrix in the minimal gauged U(1) L μ −L τ model, where three right-handed neutrinos are added to the Standard Model in order to obtain non-zero masses for the active neutrinos. Because of the U(1) L μ −L τ gauge symmetry, the structure of both Dirac and Majorana mass terms of neutrinos is tightly restricted. In particular, the inverse of the neutrinomass matrix has zeros in the (μ, μ) and (τ, τ ) components, namely, this model offers a symmetric realization of the socalled two-zero-minor structure in the neutrino-mass matrix. Due to these constraints, all the CP phases -the Dirac CP phase δ and the Majorana CP phases α 2 and α 3 -as well as the mass eigenvalues of the light neutrinos m i are uniquely determined as functions of the neutrino mixing angles θ 12 , θ 23 , and θ 13 , and the squared mass differences m 2 21 and m 2 31 . We find that this model predicts the Dirac CP phase δ to be δ 1.59π -1.70π (1.54π -1.78π ), the sum of the neutrino masses to be i m i 0.14-0.22 eV (0.12-0.40 eV), and the effective mass for the neutrinoless double-beta decay to be m ββ 0.024-0.055 eV (0.017-0.12 eV) at 1σ (2σ ) level, which are totally consistent with the current experimental limits. These predictions can soon be tested in future neutrino experiments. Implications for leptogenesis are also discussed.

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“…Both of these marginal operators have been studied autonomously at electron colliders in the hidden photon context [5][6][7][8][9][10][11][12][13][14][15][16][17] and the hidden scalar context [18][19][20][21][22][23]. Some works study both operators in tandem [24][25][26] or adopt an effective operator approach [27].…”

Section: Introductionmentioning

confidence: 99%

A tale of two portals: testing light, hidden new physics at future e + e − colliders

Liu

Wang

2017

J. High Energ. Phys.

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We investigate the prospects for producing new, light, hidden states at a future e + e − collider in a Higgsed dark U(1) D model, which we call the Double Dark Portal model. The simultaneous presence of both vector and scalar portal couplings immediately modifies the Standard Model Higgsstrahlung channel, e + e − → Zh, at leading order in each coupling. In addition, each portal leads to complementary signals which can be probed at direct and indirect detection dark matter experiments. After accounting for current constraints from LEP and LHC, we demonstrate that a future e + e − Higgs factory will have unique and leading sensitivity to the two portal couplings by studying a host of new production, decay, and radiative return processes. Besides the possibility of exotic Higgs decays, we highlight the importance of direct dark vector and dark scalar production at e + e − machines, whose invisible decays can be tagged from the recoil mass method.

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On the possibility of a search for the $L_\mu - L_\tau$ gauge boson at Belle-II and neutrino beam experiments

Cited by 81 publications

References 83 publications

Hunting all the hidden photons

Hunting all the hidden photons

Predictions for the neutrino parameters in the minimal gauged $$\hbox {U}(1)_{L_\mu -L_\tau }$$ U ( 1 ) L μ - L τ model

A tale of two portals: testing light, hidden new physics at future e + e − colliders

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