A5088320739- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Vaccine Coverage and Hesitancy
- Cosmology and Gravitation Theories
- Particle Detector Development and Performance
- Semiconductor materials and interfaces
- Computational Physics and Python Applications
- Viral gastroenteritis research and epidemiology
- Influenza Virus Research Studies
- Astrophysics and Cosmic Phenomena
- Algorithms and Data Compression
- Nanowire Synthesis and Applications
- Hepatitis Viruses Studies and Epidemiology
- Radio Astronomy Observations and Technology
- Computational Drug Discovery Methods
- Metabolomics and Mass Spectrometry Studies
- Advanced Thermodynamics and Statistical Mechanics
- Semiconductor Quantum Structures and Devices
- Machine Learning in Materials Science
- Viral Infections and Outbreaks Research
- Healthcare cost, quality, practices
- Silicon Nanostructures and Photoluminescence
- Phase-change materials and chalcogenides
- Silicon and Solar Cell Technologies
- COVID-19 and healthcare impacts
Merck & Co., Inc., Rahway, NJ, USA (United States)
2023-2025
United States Military Academy
2020
University of California, Irvine
2013-2019
Rutgers, The State University of New Jersey
2017-2018
Fermi National Accelerator Laboratory
2015-2017
University of California System
2014
Rensselaer Polytechnic Institute
2011-2012
SLAC National Accelerator Laboratory
2011
Office of Science
2011
This document is the final report of ATLAS-CMS Dark Matter Forum, a forum organized by ATLAS and CMS collaborations with participation experts on theories Matter, to select minimal basis set dark matter simplified models that should support design early LHC Run-2 searches. A prioritized, compact benchmark proposed, accompanied studies parameter space these repository generator implementations. also addresses how apply Effective Field Theory formalism for collider searches present results...
We present simplified models for the galactic center $\ensuremath{\gamma}$-ray excess where Dirac dark matter annihilates into pairs or triplets of on-shell bosonic mediators to standard model. These annihilation modes allow mass be heavier than those conventional effective theories excess. Because rate is set by matter--mediator coupling, model coupling can made parametrically small ``hide'' sector suppressing direct detection and collider signals. explore viability these as a thermal relic...
We explore the LHC phenomenology of dark matter (DM) pair production in association with a 125 GeV Higgs boson. This signature, dubbed `mono-Higgs,' appears as single boson plus missing energy from DM particles escaping detector. perform an background study for mono-Higgs signals at $\sqrt{s} = 8$ and $14$ TeV four decay channels: $\gamma\gamma$, $b \bar b$, $ZZ^* \to 4\ell$, $\ell\ell j j$. estimate sensitivities to variety new physics scenarios within frameworks both effective operators...
Light gauge bosons can lead to resonant interactions between high-energy astrophysical neutrinos and the cosmic neutrino background. We study this possibility in detail, considering ability of IceCube probe such scenarios. find most dramatic effects models with a very light $Z'$ ($m_{Z'} \lesssim 10$ MeV), which induce significant absorption feature at $E_{\nu} \sim\,$5-10$\,{\rm TeV} \times (m_{Z'}/{\rm MeV})^2$. In case inverted hierarchy small sum masses, result broad deep spectral...
The distributions of dark matter and baryons in the Universe are known to be very different: resides extended halos, while a significant fraction have radiated away much their initial energy fallen deep into potential wells. This difference morphology leads widely held conclusion that cannot cool collapse on any scale. We revisit this assumption show simple model where is charged under "dark electromagnetism" can allow form gravitationally collapsed objects with characteristic mass scales...
We study a multi-component dark matter model where interactions with the Standard Model are primarily via Higgs boson. The contains vector-like fermions charged under SU(2) W × U(1) Y and gauge group, U(1)′. This results in two candidates. A spin-1 spin- $$ \frac{1}{2} candidate, which have loop tree-level couplings to Higgs, respectively. explore resulting effect on relic abundance, while also evaluating constraints invisible width from direct detection experiments. Generally, we find that...
Approaches best suited for encouraging adults to vaccinate themselves may differ from those parents their children. To describe vaccine hesitancy and literacy among the US adult population. This cross-sectional survey assessed population (aged 18-60), grouped by role as decision makers (parents children aged <18 vs. themselves). Results were also examined without race household income. Data collected using multiple-choice questions, which are reported numbers percentages, or a 5-point Likert...
Background This study provides an updated and expanded analysis of the impact COVID-19 pandemic on routine vaccinations across life-course in United States.Research design methods Routine wellness visits vaccination rates were calculated using structured claims data for each month during period (January 2020 to August 2022) compared respective baseline 2018 December 2019). Monthly aggregated as annual accumulated cumulative percent changes.Results The complete monthly rate interactive...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Peter D. Persans, Nathaniel E. Berry, Daniel Recht, David Hutchinson, Hannah Peterson, Jessica Clark, Supakit Charnvanichborikarn, James S. Williams, Anthony DiFranzo, Michael J. Aziz, Jeffrey M. Warrender; Photocarrier lifetime transport in silicon supersaturated with sulfur. Appl. Phys. Lett. 10 September...
We study a model of spin-1 dark matter which interacts with the Standard Model predominantly via exchange Higgs bosons. propose an alternative UV completion to usual Vector Dark Matter Portal, in vector-like fermions charged under SU (2) W × U (1) Y and gauge group, (1)′, generate effective interaction between at one loop. explore resulting phenomenology show that this candidate is viable thermal relic satisfies invisible width constraints as well direct detection bounds.
A bstract In this paper, we describe a novel, model-independent technique of “rectangular aggregations” for mining the LHC data hints new physics. typical (CMS) search now has hundreds signal regions, which can obscure potentially interesting anomalies. Applying our to two CMS jets+MET SUSY searches, identify set previously overlooked ∼ 3 σ excesses. Among these, four excesses survive tests inter-and intra-search compatibility, and are especially interesting: they largely overlappingbetween...
Models in which dark matter particles can scatter into a slightly heavier state promptly decays to the lighter and photon (known as eXciting Dark Matter, or XDM) have been shown be capable of generating 3.55 keV line observed from galaxy clusters, while suppressing flux such smaller halos, including dwarf galaxies. In most XDM models discussed literature, this up-scattering is mediated by new light particle, annihilations proceed pairs same state. these models, mediator effectively reside...
Photoconductivity in silicon hyperdoped with sulfur and selenium above the insulator-to-metal transition was measured via photoinduced changes microwave reflectivity of layers formed on p-type silicon. Despite these materials' strong subgap optical absorption, exposing them to 1310 1550 nm light results a change conductivity per photon 10,000 times smaller than what is observed untreated exposed 980 light. A similar bound applies for 405 light, which absorbed entirely layer. We use deduce...
While Gaussian process models are typically restricted to smaller data sets, we propose a variation which extends its applicability the larger sets common in industrial drug discovery space, making it relatively novel quantitative structure–activity relationship (QSAR) field. By incorporating locality-sensitive hashing for fast nearest neighbor searches, model makes predictions with time complexity that is sub-linear sample size. The can be efficiently built, permitting rapid updates prevent...
We propose a new strategy to systematically search for physics processes in particle collisions at the energy frontier. An examination of all possible topologies which give identifiable resonant features specific final state leads tractable number ``topological models'' per and gives guidance their discovery. Using one state, $\ensuremath{\ell}\ensuremath{\ell}jj$, as an example, we find that possibilities is reasonable reveals simple, but as-yet-unexplored, contain significant discovery...
A bstract In previous work, we identified an anomalous number of events in the LHC jets+MET searches characterized by low jet multiplicity and low-to-moderate transverse energy variables. Here, update this analysis with results from a new ATLAS search monojet channel which also shows consistent excess. As before, find that “monojet excess” is well-described resonant production heavy colored state decaying to quark massive invisible particle. combined CMS data, now local (global) preference...