Circular polarization of cosmic photons due to their interactions with sterile neutrino dark matter

Haghighat, M.; Mahmoudi, S.; Mohammadi, Rohoollah; Tizchang, Seddigheh; Xue, She‐Sheng

doi:10.1103/physrevd.101.123016

Cited by 15 publications

(16 citation statements)

References 117 publications

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“…we find that, unfortunately, (29) after averaging on both helicities of the Dirac fermions, leads to a vanishing average as…”

Section: Dirac Fermionic Dark Mattermentioning

confidence: 82%

“…However, studies conducted in recent years show that the interaction between photons and matter can convert or generate the polarization states of photons in different situations. For instance, the linear polarization of the CMB photons can be converted to the circular one in the presence of background fields or due to the effects of particle scattering which has been widely discussed in the literature [19][20][21][22][23][24][25][26][27][28][29][30]. In this paper, we consider the DDM model with a singlet spin 1 2 fermion as DM particles to examine the effects of magnetic dipole moments on the CMB photon polarization.…”

Section: Introductionmentioning

confidence: 99%

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Dipolar dark matter and CMB B-mode polarization

et al. 2020

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We consider dark matter particles as singlet fermionic particles carrying magnetic dipole moment to explore its contribution on the polarization of the cosmic microwave background (CMB) photons. We show that Dirac fermionic dark matter particles have no contribution on the CMB polarization. However, in the case of Majorana dark matter, this type of interaction leads to the B-mode polarization in the presence of primordial scalar perturbations which is in contrast with the standard scenario for the CMB polarization. We numerically calculate the B-mode power spectra and plot $$C_l^{BB}$$ClBB for different dark matter masses and the r-parameter. We show that dark matter particles with masses less than 100 MeV have a valuable contribution on $$C_l^{BB}$$ClBB. Meanwhile, dark matter particles with mass $$\text {m}_{\text {DM}}\le 50\, \text {MeV}$$mDM≤50MeV for $$r=0.07$$r=0.07 ( $$\text {m}_{\text {DM}}\le 80\, \text {MeV}$$mDM≤80MeV for $$r=0.09$$r=0.09) can be excluded experimentally. Furthermore, our results put a bound on the magnetic dipole moment about $$\text {M}\le 10^{-16} e\,\, \text {cm}$$M≤10-16ecm in agreement with the other reported constraints.

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“…we find that, unfortunately, (29) after averaging on both helicities of the Dirac fermions, leads to a vanishing average as…”

Section: Dirac Fermionic Dark Mattermentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Dipolar dark matter and CMB B-mode polarization

et al. 2020

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“…There are many possibilities with various degree of complexity to capture such a new physics where more unknown particles with different masses, interaction, spin and strength might be included in the model. The seesaw mechanism is one of the most economical solution to neutrino mass problem which is implemented in three tree-level ideas so-called as type-I [69][70][71][72][73][74], type-II [75] and type-III [76]. In some of the models in order to avoid very small tree-level Yukawa term, new discrete symmetries or continuous global symmetries are assumed [77,78].…”

Section: Sterile Neutrino and Charged Lepton Couplingsmentioning

confidence: 99%

“…However, they do not vanish at high energies, implying that the parity symmetry could be restored at high energy scale [54,100]. Recently, the effective operators of right-handed currents have been considered for studying LHC physics [101], the circular polarization of cosmic photons due to right-handed neutrino DM candidate is also considered in [74].…”

Section: Jhep12(2020)194mentioning

confidence: 99%

“…It is essential that the contribution of right-handed sterile neutrinos to the total decay width of the W gauge boson not to exceed the experimental accuracy of W decay width, 4.2 × 10 −2 GeV. This gives a weak constraint on the right-handed current coupling as G R 6 × 10 −3 [74]. A more tighter constraint can be obtained from the radiative decay of massive neutrinos [106,107].…”

Section: Sterile Neutrino Dm and Coupling Constraintsmentioning

confidence: 99%

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Shedding new light on sterile neutrinos from XENON1T experiment

Shakeri

Hajkarim

Xue

2020

J. High Energ. Phys.

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The XENON1T collaboration recently reported the excess of events from recoil electrons, possibly giving an insight into new area beyond the Standard Model (SM) of particle physics. We try to explain this excess by considering effective interactions between the sterile neutrinos and the SM particles. In this paper, we present an effective model based on one-particle-irreducible interaction vertices at low energies that are induced from the SM gauge symmetric four-fermion operators at high energies. The effective interaction strength is constrained by the SM precision measurements, astrophysical and cosmological observations. We introduce a novel effective electromagnetic interaction between sterile neutrinos and SM neutrinos, which can successfully explain the XENON1T event rate through inelastic scattering of the sterile neutrino dark matter from Xenon electrons. We find that sterile neutrinos with masses around 90 keV and specific effective coupling can fit well with the XENON1T data where the best fit points preserving DM constraints and possibly describe the anomalies in other experiments.

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Constraints on NJL four-fermion effective interactions from neutrinoless double beta decay

Pacioselli,

Panella,

Presilla

et al. 2023

J. High Energ. Phys.

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We study the contribution of a heavy right-handed Majorana neutrino to neutrinoless double beta decay (0νββ) via four-fermion effective interactions of Nambu-Jona-Lasinio (NJL) type. In this physical scenario, the sterile neutrino contributes to the nuclear transition through gauge, contact, and mixed interactions. Using the lower limit on the half-life of 0νββ from the KamLAND-Zen experiment, we then constrain the effective right-handed coupling between the sterile neutrino and the W boson: $$ {\mathcal{G}}_R^W $$ G R W . Eventually, we show that the obtained bounds are compatible with those found in the literature, which highlights the complementarity of this type of phenomenological study with high-energy experiments.

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Circular polarization of cosmic photons due to their interactions with sterile neutrino dark matter

Cited by 15 publications

References 117 publications

Dipolar dark matter and CMB B-mode polarization

Dipolar dark matter and CMB B-mode polarization

Shedding new light on sterile neutrinos from XENON1T experiment

Constraints on NJL four-fermion effective interactions from neutrinoless double beta decay

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