“Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives...

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Page 1: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 2: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 3: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

“Sterile” neutrinos are not sterile by virtueof their vacuum mixing with active neutrinos

Gives effective interaction strength of the sterile neutrino relative to thestandard Weak InteractionWeak Interaction

It is by virtue of these tiny interactions that sterile neutrinoscan be produced in the early universe or in supernovae

Page 4: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

A heavy “sterile” neutrino can decay into a light“active” neutrino and a photon.

The final state light neutrino and the photon equally share the rest mass energy of the initial heavy neutrino.

Page 5: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

Sterile Neutrino Dark Matter ???Sterile Neutrino Dark Matter ???

active-active neutrino scattering-induced decoherence

S. Dodelson & L. M. Widrow, Phys. Rev. Lett. 72, 17 (1994)

A. D. Dolgov & S. H. Hansen, Astropart. Phys. 16, 339 (2002)

Largely eliminated by the X-ray observations

But Some Models Are Still Viable . . .

lepton number-enhanced decoherence

low temperature inflaton

Higgs decay

M. Shaposhnikov & I. Tkachev, Phys. Lett. B 639, 414 (2006)

A. Kusenko, Phys. Rev. Lett. 97, 241301 (2006)K. Petraki & A. Kusenko (2007), arXiv:0711.4646

X. Shi & G. M. Fuller, Phys. Rev. Lett. 83, 3120 (1999)

K. Abazajian, G.M. Fuller, M. Patel, Phys. Rev. D 64, 023501 (2001)

C. Kishimoto & G.M. Fuller, Phys. Rev. D 78, 023524 (2008) arXiv:0802.3377

K. Petraki (20008), arXiv:0801.3470

Page 6: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

J. Hidaka & G. M. Fuller, Phys. Rev. D 74, 125015 (2006) J. Hidaka & G. M. Fuller, Phys. Rev. D 76, 085013 (2007)

Ohio S

tate group

Page 7: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

Fun with Compact Objects and ~ keV Rest Mass Sterile Neutrinos

Pulsar “Kicks” A. Kusenko & G. Segre, PRD 59, 061302 (1999); G. M. Fuller, A. Kusenko, I. Mocioiu, and S. Pascoli PRD 68, 103002 (2003).

Proto-neutron star “kick”-aided hydrodynamic supernovashock enhancement C. Fryer & A. Kusenko, Astrophys. J. (Suppl) 163, 335 (2006).

Active-sterile-active neutrino matter-enhanced alteration of collapsephysics and enhanced shock re-heatingJ. Hidaka & G. M. Fuller, Phys. Rev. D 74, 125015 (2006)

Page 8: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 9: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 10: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 11: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 12: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 13: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 14: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 15: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 16: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 17: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 18: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 19: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 20: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

DAMA/LIBRA Low Energy Spectrum

Page 21: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 22: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 23: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

CDMS Low Energy Spectrum

Page 24: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

CDMS, DAMA/LIBRA Comparison

Page 25: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 26: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 27: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.
Page 28: “Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos Gives effective interaction strength of the sterile neutrino.

“Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos

“Sterile” neutrinos are not sterile by virtue of their vacuum mixing with active neutrinos

Neutrinos in Cosmology - Heidelberg University · ★ If neutrinos are mixed and massive, additional sterile neutrinos could be abundantly produced in the early universe ★ From

Neutrinos in Cosmology - Heidelberg University · ★ If neutrinos are mixed and massive, additional sterile neutrinos could be abundantly produced in the early universe ★ From

Light Sterile Neutrinos: A White Paper

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Double beta decay, neutrino oscillations and sterile neutrinos. Petr Vogel,

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Phenomenology with sterile neutrinos - Fermilabhome.fnal.gov/~jkopp/pdf/snu.pdf · Joachim Kopp Phenomenology with sterile neutrinos 5. ... I Simulate mock e ... Test compatibility

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Sterile neutrinos at the Neutrino Factory

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Non-sterile electroweak-scale right-handed neutrinos and a ...fisica.ugto.mx/~jointschool2014/wp-content/uploads/2014...Non-sterile electroweak-scale right-handed neutrinos and a panorama

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Marco Cirelli cosmo nu.pdf · Why sterile neutrinos We want to study light sterile neutrinos ! s. O(eV) - spin 1/2 fermions, - neutral under SM forces, - mix with active neutrinos.

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Cosmological Constraints on Active and Sterile Neutrinos Matteo Viel INAF / OATS & INFN/TS

Cosmological Constraints on Active and Sterile Neutrinos Matteo Viel INAF / OATS & INFN/TS

STERILE NEUTRINOS and other exotica

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Light Sterile Neutrinos in Supernovaecrunch.ikp.physik.tu-darmstadt.de/erice/2013/sec/talks/monday/wu.pdf · Light Sterile Neutrinos in Supernovae Meng-Ru Wu, Technische Universität

Light Sterile Neutrinos in Supernovaecrunch.ikp.physik.tu-darmstadt.de/erice/2013/sec/talks/monday/wu.pdf · Light Sterile Neutrinos in Supernovae Meng-Ru Wu, Technische Universität

Prospects for the detection of sterile neutrinos with KATRIN-like experiments Anna Sejersen Riis, Steen Hannestad “Detecting sterile neutrinos with KATRIN.

Prospects for the detection of sterile neutrinos with KATRIN-like experiments Anna Sejersen Riis, Steen Hannestad “Detecting sterile neutrinos with KATRIN.

Suzaku search for evidence of sterile neutrinos in the X-ray spectra of dwarf spheroidal galaxies

Suzaku search for evidence of sterile neutrinos in the X-ray spectra of dwarf spheroidal galaxies

Light Sterile Neutrinos: The Evidence Jonathan Link Center for Neutrino Physics Virginia Tech

Light Sterile Neutrinos: The Evidence Jonathan Link Center for Neutrino Physics Virginia Tech

Light sterile neutrinos: fact or fiction?

Light sterile neutrinos: fact or fiction?

Shedding New Light on Sterile Neutrinos from XENON1T ... · Shedding New Light on Sterile Neutrinos from XENON1T Experiment Soroush Shakeri, a;b Fazlollah Hajkarim,c She-Sheng Xue,d

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Sterile Neutrinos at Borexino SOX

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Search for keV-Scale Sterile Neutrinos with KATRIN · Search for keV-Scale Sterile Neutrinos with KATRIN Masterarbeit vorgelegt am 13. Juli 2015 von Anton Huber An der Fakultät für

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Sterile Neutrinos Altered Dispersion Relations

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X-ray Constraints on Sterile Neutrinos + General Phase ... · The Fertile Phenomenology of Sterile Neutrinos Non-zero active neutrino masses [1,2] Baryon & Lepton Asymmetries [15-20]

X-ray Constraints on Sterile Neutrinos + General Phase ... · The Fertile Phenomenology of Sterile Neutrinos Non-zero active neutrino masses [1,2] Baryon & Lepton Asymmetries [15-20]