Next meeting:
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Lucas Vicente García-Consuegra,
David Marsh,
Ankit Beniwal,
Silvia Pla García,
Maximilian Detering,
Lucien Heurtier|
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Votes: 4
6 years ago Author:
Jurek B. Bauer, David J. E. Marsh, Renée Hložek, Hamsa Padmanabhan, Alex Laguë
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Votes: 2
6 years ago Author:
Marvin Lüben, Angnis Schmidt-May, Jochen Weller
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Votes: 2
6 years ago
Title:
Ruling Out the Massless Up-Quark Solution to the Strong CP Problem by
Computing the Topological Mass Contribution with Lattice QCD
(View PDF)
Author:
Constantia Alexandrou, Jacob Finkenrath, Lena Funcke, Karl Jansen, Bartosz Kostrzewa, Ferenc Pittler, Carsten Urbach
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Votes: 3
6 years ago Author:
Sebastian Golat, Carlo R. Contaldi
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Votes: 4
6 years ago
Title:
Gravitational waves from first-order cosmological phase transitions:
lifetime of the sound wave source
(View PDF)
Author:
John Ellis, Marek Lewicki, José Miguel No
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Votes: 3
6 years ago Author:
Eleonora Di Valentino, Alessandro Melchiorri, Joseph Silk
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6 years ago
Title: Curvature Perturbations From Stochastic Particle Production During Inflation
Link: https://arxiv.org/abs/2001.09158
Description: We calculate the curvature power spectrum sourced by spectator fields that are excited repeatedly and non-adiabatically during inflation. In the absence of detailed information of the nature of spectator field interactions, we consider an ensemble of models with intervals between the repeated interactions and interaction strengths drawn from simple probabilistic distributions. We show that the curvature power spectra of each member of the ensemble shows rich structure with many features, and there is a large variability between different realizations of the same ensemble. Such features can be probed by the cosmic microwave background (CMB) and large scale structure observations. They can also have implications for primordial black hole formation and CMB spectral distortions.
The geometric random walk behavior of the spectator field allows us to calculate the ensemble-averaged power spectrum of curvature perturbations semi-analytically. For sufficiently large stochastic sourcing, the en
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Votes: 1
6 years ago
Title:
Measurement of $C\!P$-averaged observables in the $B^{0}\rightarrow
K^{*0}\mu^{+}\mu^{-}$ decay
(View PDF)
Author:
LHCb collaboration, R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva, M. Adinolfi, H. Afsharnia, C. A. Aidala et al.
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Votes: 3
6 years ago Author:
V. De Luca, G. Franciolini, P. Pani, A. Riotto
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Votes: 1
6 years ago
Title:
Foreground Mismodeling and the Point Source Explanation of the Fermi
Galactic Center Excess
(View PDF)
Author:
Malte Buschmann, Nicholas L. Rodd, Benjamin R. Safdi, Laura J. Chang, Siddharth Mishra-Sharma, Mariangela Lisanti, Oscar Macias
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