SCOAP3 Repository 12 records found  1 - 10nextSearch took 0.01 seconds. 
1. Cosmology with a very light L μ − L τ gauge boson / Escudero, Miguel ; Hooper, Dan ; Krnjaic, Gordan ; Pierre, Mathias
In this paper, we explore in detail the cosmological implications of an abelian L μ − L τ gauge extension of the Standard Model featuring a light and weakly coupled Z ′. [...]
Published in JHEP 1903 (2019) 071 10.1007/JHEP03(2019)071 arXiv:1901.02010
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2. Severe Constraints on New Physics Explanations of the MiniBooNE Excess / Jordan, Johnathon R. ; Kahn, Yonatan ; Krnjaic, Gordan ; Moschella, Matthew ; et al
The MiniBooNE experiment has recently reported an anomalous 4.5σ excess of electronlike events consistent with νe appearance from a νμ beam at short baseline. [...]
Published in Physical Review Letters 122 (2019) 10.1103/PhysRevLett.122.081801 arXiv:1810.07185
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3. Signatures of pseudo-Dirac dark matter at high-intensity neutrino experiments / Jordan, Johnathon R. ; Kahn, Yonatan ; Krnjaic, Gordan ; Moschella, Matthew ; et al
We (re)consider the sensitivity of past (LSND) and future (JSNS2) beam dump neutrino experiments to two models of MeV-scale pseudo-Dirac dark matter. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.075020 arXiv:1806.05185
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4. Freezing in, heating up, and freezing out: predictive nonthermal dark matter and low-mass direct detection / Krnjaic, Gordan
Freeze-in dark matter (DM) mediated by a light (≪ keV) weakly-coupled dark-photon is an important benchmark for the emerging low-mass direct detection program. [...]
Published in JHEP 1810 (2018) 136 10.1007/JHEP10(2018)136 arXiv:1711.11038
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5. M 3 : a new muon missing momentum experiment to probe ( g − 2) μ and dark matter at Fermilab / Kahn, Yonatan ; Krnjaic, Gordan ; Tran, Nhan ; Whitbeck, Andrew
New light, weakly-coupled particles are commonly invoked to address the persistent ∼ 4 σ anomaly in ( g −2) μ and serve as mediators between dark and visible matter. [...]
Published in JHEP 1809 (2018) 153 10.1007/JHEP09(2018)153 arXiv:1804.03144
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6. Severely Constraining Dark-Matter Interpretations of the 21-cm Anomaly / Berlin, Asher ; Hooper, Dan ; Krnjaic, Gordan ; McDermott, Samuel D.
The EDGES Collaboration has recently reported the detection of a stronger-than-expected absorption feature in the global 21-cm spectrum, centered at a frequency corresponding to a redshift of z17. [...]
Published in Physical Review Letters 121 (2018) 10.1103/PhysRevLett.121.011102 arXiv:1803.02804
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7. Distorted neutrino oscillations from time varying cosmic fields / Krnjaic, Gordan ; Machado, Pedro A.N. ; Necib, Lina
Cold, ultralight (eV) bosonic fields can induce fast temporal variation in neutrino couplings, thereby distorting neutrino oscillations. [...]
Published in Physical Review D 97 (2018) 10.1103/PhysRevD.97.075017 arXiv:1705.06740
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8. Light weakly coupled axial forces: models, constraints, and projections / Kahn, Yonatan ; Krnjaic, Gordan ; Mishra-Sharma, Siddharth ; Tait, Tim
We investigate the landscape of constraints on MeV-GeV scale, hidden U(1) forces with nonzero axial-vector couplings to Standard Model fermions. [...]
Published in JHEP 1705 (2017) 002 10.1007/JHEP05(2017)002 arXiv:1609.09072
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9. PeV-scale dark matter as a thermal relic of a decoupled sector / Berlin, Asher ; Hooper, Dan ; Krnjaic, Gordan
In this letter, we consider a class of scenarios in which the dark matter is part of a heavy hidden sector that is thermally decoupled from the Standard Model in the early universe. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.06.037
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10. Big bang darkleosynthesis / Krnjaic, Gordan ; Sigurdson, Kris
In a popular class of models, dark matter comprises an asymmetric population of composite particles with short range interactions arising from a confined nonabelian gauge group. [...]
Published in Physics letters B (2015) 10.1016/j.physletb.2015.11.001
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