SCOAP3 Repository 18 records found  1 - 10nextSearch took 0.02 seconds. 
1. Hearing without seeing: gravitational waves from hot and cold hidden sectors / Fairbairn, Malcolm ; Hardy, Edward ; Wickens, Alastair
We study the spectrum of gravitational waves produced by a first order phase transition in a hidden sector that is colder than the visible sector. [...]
Published in JHEP 1907 (2019) 044 10.1007/JHEP07(2019)044 arXiv:1901.11038
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2. Axions from strings: the attractive solution / Gorghetto, Marco ; Hardy, Edward ; Villadoro, Giovanni
We study the system of axion strings that forms in the early Universe if the Peccei-Quinn symmetry is restored after inflation. [...]
Published in JHEP 1807 (2018) 151 10.1007/JHEP07(2018)151 arXiv:1806.04677
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3. Higgs portal dark matter in non-standard cosmological histories / Hardy, Edward
A scalar particle with a relic density set by annihilations through a Higgs portal operator is a simple and minimal possibility for dark matter. [...]
Published in JHEP 1806 (2018) 043 10.1007/JHEP06(2018)043 arXiv:1804.06783
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4. Non-perturbative reheating and Nnaturalness / Hardy, Edward
We study models in which reheating happens only through non-perturbative processes. [...]
Published in JHEP 1711 (2017) 125 10.1007/JHEP11(2017)125 arXiv:1708.06530
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5. Symmetric and asymmetric reheating / Hardy, Edward ; Unwin, James
We study models in which the inflaton is coupled to two otherwise decoupled sectors, and the effect of preheating and related processes on their energy densities during the evolution of the universe. [...]
Published in JHEP 1709 (2017) 113 10.1007/JHEP09(2017)113 arXiv:1703.07642
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6. Glueball dark matter in non-standard cosmologies / Acharya, Bobby ; Fairbairn, Malcolm ; Hardy, Edward
Hidden sector glueball dark matter is well motivated by string theory, compactifications of which often have extra gauge groups uncoupled to the visible sector. [...]
Published in JHEP 1707 (2017) 100 10.1007/JHEP07(2017)100 arXiv:1704.01804
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7. Miniclusters in the axiverse / Hardy, Edward
If dark matter is an axion-like-particle a significant fraction of the present day relic abundance could be concentrated in compact gravitationally bound miniclusters. [...]
Published in JHEP 1702 (2017) 046 10.1007/JHEP02(2017)046 arXiv:1609.00208
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8. Stellar cooling bounds on new light particles: plasma mixing effects / Hardy, Edward ; Lasenby, Robert
Strong constraints on the coupling of new light particles to the Standard Model (SM) arise from their production in the hot cores of stars, and the effects of this on stellar cooling. [...]
Published in JHEP 1702 (2017) 033 10.1007/JHEP02(2017)033 arXiv:1611.05852
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9. Dirac vs Majorana gauginos at a 100 TeV collider / Cortona, Giovanni ; Hardy, Edward ; Powell, Andrew
We compare the prospects for observing theories with Majorana or Dirac gauginos at a future 100 TeV proton-proton collider. [...]
Published in JHEP 1608 (2016) 014 10.1007/JHEP08(2016)014 arXiv:1606.07090
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10. Diphotons from diaxions / Aparicio, Luis ; Azatov, Aleksandr ; Hardy, Edward ; Romanino, Andrea
We study models in which the 750 GeV diphoton excess is due to a scalar decaying to two pseudo-Nambu-Goldstone bosons that subsequently decay into two pairs of highly boosted photons, misidentified as individual photons. [...]
Published in JHEP 1605 (2016) 077 10.1007/JHEP05(2016)077 arXiv:1602.00949
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SCOAP3 Repository : 18 records found   1 - 10next
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