374 citations · 2.9k across the 60 of their papers we have counts for
15 papers · 1 filter
New constraints on the dark matter-neutrino and dark matter-photon scattering cross sections from TXS 0506+056
Francesc Ferrer, Gonzalo Herrera, Alejandro Ibarra
The flux of high energy neutrinos and photons produced in a blazar could get attenuated when they propagate through the dark matter spike around the central black hole and the halo…
Magnetic field production at a first-order electroweak phase transition
Yiyang Zhang, Tanmay Vachaspati, Francesc Ferrer
We study the generation of magnetic field seeds during a first-order electroweak phase transition, by numerically evolving the classical equations of motion of the bosonic electrow…
Primordial Black Holes from the QCD axion
Francesc Ferrer, Eduard Masso, Giuliano Panico +2
We propose a mechanism to generate Primordial Black Holes (PBHs) which is independent of cosmological inflation and occurs slightly below the QCD phase transition. Our setup relies…
US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
Marco Battaglieri, Alberto Belloni, Aaron Chou +248
This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017.
A novel approach to derive halo-independent limits on dark matter properties
Francesc Ferrer, Alejandro Ibarra, Sebastian Wild
We propose a method that allows to place an upper limit on the dark matter elastic scattering cross section with nucleons which is independent of the velocity distribution. Our app…
Snowmass Cosmic Frontiers 6 (CF6) Working Group Summary --The Bright Side of the Cosmic Frontier: Cosmic Probes of Fundamental Physics
J. J. Beatty, A. E. Nelson, A. Olinto +62
Report of the CF6 Working Group at Snowmass 2013. Topics addressed include ultra-high energy cosmic rays, neutrinos, gamma rays, baryogenesis, and experiments probing the fundament…
Dark matter in natural supersymmetric extensions of the Standard Model
Francesc Ferrer, Christopher Spitzer
We explore the dark matter sector in extensions of the Minimal Supersymmetric Standard Model (MSSM) that can provide a good fit to the PAMELA cosmic ray positron excess, while at t…
Indirect detection of light neutralino dark matter in the NMSSM
Francesc Ferrer, Lawrence M. Krauss, Stefano Profumo
We explore the prospects for indirect detection of neutralino dark matter in supersymmetric models with an extended Higgs sector (NMSSM). We compute, for the first time, one-loop a…
Effects of Bose-Einstein Condensation on forces among bodies sitting in a boson heat bath
F. Ferrer, J. A. Grifols
We explore the consequences of Bose-Einstein condensation on two-scalar-exchange mediated forces among bodies that sit in a boson gas. We find that below the condensation temperatu…
Long range neutrino forces in the cosmic relic neutrino background
F. Ferrer, J. A. Grifols, M. Nowakowski
Neutrinos mediate long range forces among macroscopic bodies in vacuum. When the bodies are placed in the neutrino cosmic background, these forces are modified. Indeed, at distance…
Casimir-Polder forces in the presence of the cosmic photon heat bath
F. Ferrer, J. A. Grifols
We study the effect of a photon background at finite temperature on the Van der Waals interactions among neutral bodies. It turns out that the long-range Casimir-Polder force i…
Higgs- and Goldstone bosons-mediated long range forces
F. Ferrer, M. Nowakowski
In certain mild extensions of the Standard Model, spin-independent long range forces can arise by exchange of two very light pseudoscalar spin--0 bosons. In particular, we have in…
Long range forces induced by neutrinos at finite temperature
F. Ferrer, J. A. Grifols, M. Nowakowski
We revisit and extend previous work on neutrino mediated long range forces in a backround at finite temperature. For Dirac neutrinos, we correct existing results. We also give new…
Long Range Forces from Pseudoscalar Exchange
F. Ferrer, J. A. Grifols
Using dispersion theoretic techniques, we consider coherent long range forces arising from double pseudoscalar exchange among fermions. We find that Yukawa type coupling leads to $…
Constraints on the mass of the superlight gravitino from the muon anomaly
F. Ferrer, J. A. Grifols
We reexamine the limits on the gravitino mass supplied by the muon anomaly in the frame of supergravity models with a superlight gravitino and a superlight scalar S and a superligh…