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We present a new method to search for gravitational waves from quasinormal modes in the ringdowns of the remnants of the mergers of the binary black hole systems. The method is based on maximum likelihood estimation. We derive a time-domain…

General Relativity and Quantum Cosmology · Physics 2026-04-28 A. Królak , O. Dorosh

We present a hidden Abelian extension of the Standard Model including a complex scalar as a dark matter candidate and a light scalar acting as a long range force carrier between dark matter particles. The Sommerfeld enhanced annihilation…

High Energy Physics - Phenomenology · Physics 2014-11-20 Chiara Arina , Francois-Xavier Josse-Michaux , Narendra Sahu

Gravitational microlensing may detect dark stellar remnants - black holes or neutron stars - even if they are isolated. However, it is challenging to estimate masses of isolated dark stellar remnants using solely photometric data for…

Solar and Stellar Astrophysics · Physics 2021-09-15 P. Mroz , L. Wyrzykowski

Resolving the structural variability of proteins is often key to understanding the structure-function relationship of those macromolecular machines. Single particle analysis using Cryogenic electron microscopy (CryoEM), combined with…

Quantitative Methods · Quantitative Biology 2022-11-22 Muyuan Chen , Bogdan Toader , Roy Lederman

The current standard model of cosmology, the LambdaCDM model, is based on the homogeneous FLRW solutions of the Einstein equations to which some perturbations are added to account for the CMB features and structure formation at large…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-14 Marie-Noëlle Célérier

Tens of thousands of galaxy-galaxy strong lensing systems are expected to be discovered by the end of the decade. These will form a vast new dataset that can be used to probe subgalactic dark matter structures through its gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-31 Arthur Tsang , Atınç Çağan Şengül , Cora Dvorkin

Mirror dark matter offers a framework to explain the existing dark matter direct detection experiments. Here we confront this theory with the most recent experimental data, paying attention to the various known systematic uncertainties, in…

High Energy Physics - Phenomenology · Physics 2010-11-11 R. Foot

The most compelling candidates for Dark Matter to day are WIMPs and axions. The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas) to the search of these particles is explored within this…

Decaying or annihilating dark matter particles could be detected through gamma-ray emission from the species they decay or annihilate into. This is usually done by modelling the flux from specific dark matter-rich objects such as the Milky…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-01 Deaglan J. Bartlett , Andrija Kostić , Harry Desmond , Jens Jasche , Guilhem Lavaux

The computation of the energy spectra of Standard Model particles originated from the annihilation/decay of dark matter particles is of primary importance in indirect searches of dark matter. We compute how the inclusion of electroweak…

High Energy Physics - Phenomenology · Physics 2011-03-17 Paolo Ciafaloni , Denis Comelli , Antonio Riotto , Filippo Sala , Alessandro Strumia , Alfredo Urbano

We study the merger rate of dark matter PIMBHs(=Primordial Intermediate Mass Black Holes). We conclude that the black holes observed by LIGO in GW150914 and later events were probably not dark matter PIMBHs but rather the result of…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-26 Paul H. Frampton

We discuss a supersymmetric model for cogenesis of dark and baryonic matter where the dark matter (DM) has mass in the 8-10 GeV range as indicated by several direct detection searches including most recently the CDMS experiment with the…

High Energy Physics - Phenomenology · Physics 2015-06-15 Rouzbeh Allahverdi , Bhaskar Dutta , Rabindra N. Mohapatra , Kuver Sinha

The inert doublet model, a minimal extension of the Standard Model by a second Higgs doublet, is one of the simplest and most attractive scenarios that can explain the dark matter. In this paper, we demonstrate the existence of a new viable…

High Energy Physics - Phenomenology · Physics 2011-04-20 Laura Lopez-Honorez , Carlos E. Yaguna

Electroweak precision observables are calculated at complete 1-loop order in the extension of the standard model by an extra Higgs triplet, where the $\rho$-parameter can be different from unity already at the tree level. One additional…

High Energy Physics - Phenomenology · Physics 2009-10-30 T. Blank , W. Hollik

We perform a detailed study of the fine-tuning of the two-site, 4D, Next-to-Minimal Composite Higgs Model (NMCHM), based on the global symmetry breaking pattern $SO(6)\rightarrow SO(5)$. Using our previously-defined fine-tuning measure that…

High Energy Physics - Phenomenology · Physics 2019-05-01 Daniel Murnane , Martin J. White , Anthony G. Williams

Cosmic ray muon has strong penetrating power and no ionizing radiation hazards, which makes it an ideal probe for detecting special nuclear materials. In this paper, a high spatial resolution muon tomography system based on Micromegas…

Instrumentation and Detectors · Physics 2022-02-16 Yu Wang , Zhiyong Zhang , Shubin Liu , Zhongtao Shen , Changqing Feng , Jianguo Liu , Yulin Liu

A new accelerating cosmology driven only by baryons plus cold dark matter (CDM) is proposed in the framework of general relativity. In this model the present accelerating stage of the Universe is powered by the negative pressure describing…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-06 J. A. S. Lima , J. F. Jesus , F. A. Oliveira

Simulations of galaxy evolution aim to capture our current understanding as well as to make predictions for testing by future experiments. Simulations and observations are often compared in an indirect fashion: physical quantities are…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 R. Overzier , G. Lemson , R. E. Angulo , E. Bertin , J. Blaizot , B. M. B. Henriques , G. -D. Marleau , S. D. M. White

We develop a model to establish the interconnection between galaxies and their dark matter halos. We use Principal Component Analysis (PCA) to reduce the dimensionality of both the mass assembly histories of halos/subhalos and the star…

Astrophysics of Galaxies · Physics 2021-09-01 Yangyao Chen , H. J. Mo , Cheng Li , Kai Wang , Huiyuan Wang , Xiaohu Yang , Youcai Zhang , Neal Katz