Spin-independent two-neutrino exchange potential with mixing and 
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 violation

Thien, Quan Le; Krause, D. E.

doi:10.1103/physrevd.99.116006

Cited by 18 publications

(15 citation statements)

References 56 publications

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“…However, there are claims in the literature that an effective coupling mediated by heavy W , Z or the Higgs boson leads to a measurable two-particle exchange of a very light mediator. This two-fermion exchange may induce long-range forces as pointed out in the literature [5,69,[78][79][80][81][82][83][84][85], see Fig. 3.…”

Section: Singular Potentials: Effective Contact Interactionsmentioning

confidence: 91%

A study of New Physics searches with tritium and similar molecules

2020

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Searches for New Physics focus either on the direct production of new particles at colliders or at deviations from known observables at low energies. In order to discover New Physics in precision measurements, both experimental and theoretical uncertainties must be under full control. Laser spectroscopy nowadays offers a tool to measure transition frequencies very precisely. For certain molecular and atomic transitions the experimental technique permits a clean study of possible deviations. Theoretical progress in recent years allows us to compare ab initio calculations with experimental data. We study the impact of a variety of New Physics scenarios on these observables and derive novel constraints on many popular generic Standard Model extensions. As a result, we find that molecular spectroscopy is not competitive with atomic spectroscopy and neutron scattering to probe new electron-nucleus and nucleus-nucleus interactions, respectively. Molecular and atomic spectroscopy give similar bounds on new electron-electron couplings, for which, however, stronger bounds can be derived from the magnetic moment of the electron. In most of the parameter space H$$_2$$ 2 molecules give stronger constraints than T$$_2$$ 2 or other isotopologues.

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Section: Singular Potentials: Effective Contact Interactionsmentioning

confidence: 91%

A study of New Physics searches with tritium and similar molecules

2020

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“…Y SS αβ;ij = (g LL + g RL ) α;ij (g LR + g RR ) β;ij + (g LR + g RR ) α;ij (g LL + g RL ) β;ij , where the combination of scalar coefficients is 53) and the function I SM ij (r) is also given in appendix C. We see that the Dirac potential depends on the distance as 1/r 5 only when the neutrino currents are of opposite chirality -when they are the both left-or right-handed the potential becomes suppressed as m 2 ν /r 3 . This suppression does not occur for Majorana neutrinos -the potential scales as 1/r 5 for any combination of the coefficients g XY α;ij .…”

Section: Jhep07(2020)013mentioning

confidence: 99%

“…[52] to include the effects of flavour mixing for the spin-independent part of the force. In a recent work [53], one can also find a detailed inclusion of flavour mixing effects for the spin-independent part of the neutrino exchange force. In ref.…”

Section: Introductionmentioning

confidence: 99%

Probing new physics with long-range neutrino interactions: an effective field theory approach

Bolton

Deppisch

Hati

2020

J. High Energ. Phys.

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We investigate forces induced by the exchange of two light neutrinos between Standard Model (SM) fermions in the presence of effective operators parametrising physics beyond the SM. We first set up a general framework in which we derive the long-range potential mediated by weakly interacting neutrinos in the SM, retaining both spin-independent and spin-dependent terms. We then derive neutrino-mediated potentials when there are vector, scalar and tensor non-standard interactions present as well as an exotic neutrino magnetic moment. Examining the phenomenology of such long-range potentials in atomic scale laboratory experiments, we derive upper bounds on the Wilson coefficients of the effective operators and compare these to those from processes such as charged lepton flavour violation.

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“…In the low energy effective theory of the weak interaction, pairs of neutrinos can be exchanged, as shown in figure 2. This exchange results in long range quantum 2 forces between standard model fermions [20][21][22][23][24][25]. On distances the order of 1/m ν or larger the confusion theorem no longer presents any issue as the neutrino mass is not negligibly small at that length scale.…”

Section: Introductionmentioning

confidence: 99%

The neutrino Casimir force

Costantino

Fichet

2020

J. High Energ. Phys.

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In the low energy effective theory of the weak interaction, a macroscopic force arises when pairs of neutrinos are exchanged. We calculate the neutrino Casimir force between plates, allowing for two different mass eigenstates within the loop. We also provide the general potential between point sources. We discuss the possibility of distinguishing whether neutrinos are Majorana or Dirac fermions using these quantum forces.

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Spin-independent two-neutrino exchange potential with mixing and CP violation

Cited by 18 publications

References 56 publications

A study of New Physics searches with tritium and similar molecules

A study of New Physics searches with tritium and similar molecules

Probing new physics with long-range neutrino interactions: an effective field theory approach

The neutrino Casimir force

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