Dark Matter Interpretation of the Neutron Decay Anomaly

Fornal, Bartosz; Grinstein, Benjamín

doi:10.1103/PhysRevLett.120.191801

Title: Dark Matter Interpretation of the Neutron Decay Anomaly

Abstract

There is a long-standing discrepancy between the neutron lifetime measured in beam and bottle experiments. We propose to explain this anomaly by a dark decay channel for the neutron, involving one or more dark sector particles in the final state. If any of these particles are stable, they can be the dark matter. We construct representative particle physics models consistent with all experimental constraints.

Authors:: Fornal, Bartosz; Grinstein, Benjamín

Publication Date:: Wed May 09 00:00:00 EDT 2018

Research Org.:: Univ. of California, San Diego, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1436537

Alternate Identifier(s):: OSTI ID: 1498983

Grant/Contract Number:: SC0009919

Resource Type:: Published Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Name: Physical Review Letters Journal Volume: 120 Journal Issue: 19; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Fornal, Bartosz, and Grinstein, Benjamín. Dark Matter Interpretation of the Neutron Decay Anomaly.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevLett.120.191801.

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                    Fornal, Bartosz, & Grinstein, Benjamín. Dark Matter Interpretation of the Neutron Decay Anomaly.  United States.  https://doi.org/10.1103/PhysRevLett.120.191801

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                    Fornal, Bartosz, and Grinstein, Benjamín. Wed .  
"Dark Matter Interpretation of the Neutron Decay Anomaly".  United States.  https://doi.org/10.1103/PhysRevLett.120.191801.

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@article{osti_1436537,

  title        = {Dark Matter Interpretation of the Neutron Decay Anomaly},

  author       = {Fornal, Bartosz and Grinstein, Benjamín},

  abstractNote = {There is a long-standing discrepancy between the neutron lifetime measured in beam and bottle experiments. We propose to explain this anomaly by a dark decay channel for the neutron, involving one or more dark sector particles in the final state. If any of these particles are stable, they can be the dark matter. We construct representative particle physics models consistent with all experimental constraints.},

  doi          = {10.1103/PhysRevLett.120.191801},

  journal      = {Physical Review Letters},

  number       = 19,

  volume       = 120,

  place        = {United States},

  year         = {Wed May 09 00:00:00 EDT 2018},

  month        = {Wed May 09 00:00:00 EDT 2018}

}

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Cited by: 108 works

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Figure 1: Dark decay of the neutron in model 1.

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Works referenced in this record:

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Figure 1 (p. 3)

Figure 2 (p. 4)

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Title: Dark Matter Interpretation of the Neutron Decay Anomaly

Abstract

Citation Formats

Figures / Tables:

Quasielastic scattering in the interaction of ultracold neutrons with a liquid wall and application in a reanalysis of the Mambo I neutron-lifetime experiment journal, June 2012

Search for proton decay via p → e + π 0 and p → μ + π 0 in 0.31 megaton · years exposure of the Super-Kamiokande water Cherenkov detector journal, January 2017

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Search for pair-produced resonances decaying to jet pairs in proton–proton collisions at s = 8 TeV journal, July 2015

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Improved lattice computation of proton decay matrix elements journal, July 2017

Big bang nucleosynthesis with a new neutron lifetime journal, January 2005

A revised value for the neutron lifetime measured using a Penning trap journal, January 1996

A search for pair-produced resonances in four-jet final states at $$\sqrt{s}=13$$ s = 13 $$\text {TeV}$$ TeV with the ATLAS detector journal, March 2018

Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at s = 13 $$ \sqrt{s}=13 $$ TeV journal, July 2017

C P -violating baryon oscillations journal, October 2016

Observational Evidence for Self-Interacting Cold Dark Matter journal, April 2000

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β -Delayed Deuteron Emission from Li 11 : Decay of the Halo journal, November 2008

Quasielastic scattering in the interaction of ultracold neutrons with a liquid wall and application in a reanalysis of the Mambo I neutron-lifetime experiment
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Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
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