A5010031458- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Distributed and Parallel Computing Systems
- International Science and Diplomacy
- Gamma-ray bursts and supernovae
- Radiation Therapy and Dosimetry
- Advanced Data Storage Technologies
- Particle accelerators and beam dynamics
- CCD and CMOS Imaging Sensors
- Electron and X-Ray Spectroscopy Techniques
- Diverse Scientific and Economic Studies
- Muon and positron interactions and applications
Texas A&M University
2016-2025
Mitchell Institute
2014-2025
University of Antwerp
2024
A. Alikhanyan National Laboratory
2022-2024
Institute of High Energy Physics
2022-2024
Kyungpook National University
2011-2024
University of Wisconsin–Madison
1993-2021
Abdus Salam Centre for Physics
2019
Korea Institute for Advanced Study
2019
Center for Migration Studies of New York
2015
We present measurements of the pseudorapidity (η) distribution charged particles (dNchdη) produced within |η|≤3.5 in proton-antiproton collisions at √s 630 and 1800 GeV. measure dNchdη η=0 to be 3.18±0.06(stat)±0.10(syst) GeV, 3.95±0.03 (stat)±0.13(syst) Many systematic errors ratio two energies cancel, we 1.26±0.01±0.04 for GeV that |η|≤3. Comparing lower-energy data, observe an increase faster than ln(s) η=0.Received 2 October 1989DOI:https://doi.org/10.1103/PhysRevD.41.2330©1990 American...
Measurements of inclusive transverse-momentum spectra for charged particles produced in proton-antiproton collisions at √2 630 and 1800 GeV are presented compared with data taken lower energies.Received 8 June 1988DOI:https://doi.org/10.1103/PhysRevLett.61.1819©1988 American Physical Society
This report summarizes the work of Energy Frontier Top Quark working group 2013 Community Summer Study (Snowmass).
Vector boson fusion (VBF) processes at the Large Hadron Collider (LHC) provide a unique opportunity to search for new physics with electroweak couplings. A feasibility study of supersymmetric dark matter in final state two VBF jets and large missing transverse energy is presented 14 TeV. Prospects determining relic density are studied cases Wino Bino-Higgsino matter. The LHC could probe mass up approximately 600 GeV luminosity 1000 fb$^{-1}$.
Vector boson fusion processes offer a promising avenue to study the noncolored sectors of supersymmetric extensions Standard Model at LHC. A feasibility for searching chargino/neutralino system in $R$-parity conserving minimal is presented. The high ${E}_{\mathrm{T}}$ forward jets opposite hemispheres are used trigger vector events, so that production lightest chargino ${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{\ifmmode\pm\else\textpm\fi{}}$ and second-lightest neutralino...
In the inverse see-saw model effective neutrino Yukawa couplings can be sizable due to a large mixing angle between light $(\nu)$and heavy neutrinos $(N)$. When right handed $(N)$ lighter than Standard Model (SM) Higgs boson $(h)$. It produced via on-shell decay of Higgs, $h\to N\nu$ at significant branching fraction LHC. such process $N$ mass reconstructed in its dominant $N\rightarrow W \ell$ decays. We perform an analysis on this channel and relevant backgrounds, among which $W+$jets...
We present an analysis of the discovery reach for supersymmetric particles at upgraded Tevatron collider, assuming that SUSY breaking results in universal soft parameters grand unification scale, and lightest particle is stable neutral. first a review literature, including issues unification, renormalization group evolution supersymmetry effect radiative corrections on effective low energy couplings masses theory. consider experimental bounds coming from direct searches those arising...
Inclusive jet production at √s=1.8 TeV has been measured in the CDF detector Fermilab Tevatron ¯pp Collider. Jets with transverse energies (Et) up to 250 GeV have observed. The Et dependence of inclusive cross section is consistent leading-order quantum-chromodynamic calculations, and comparison lower-energy data shows deviations from scaling QCD. A lower limit 700 (95% confidence level) placed on quark compositeness scale parameter Λc associated an effective contact interaction.Received 3...
We examine the stau-neutralino coannihilation (CA) mechanism of early Universe. use minimal supergravity (mSUGRA) model and show that from measurements at CERN Large Hadron Collider one can predict dark matter relic density with an uncertainty 6% $30\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data, which is comparable to direct measurement by Wilkinson Microwave Anisotropy Probe. This done measuring four mSUGRA parameters ${m}_{0}$, ${m}_{1/2}$, ${A}_{0}$,...
A feasibility study is presented for the search of lightest top squark in a compressed scenario, where its mass approximately equal to sum masses quark and neutralino. The performed final state two b-jets, one lepton, large missing energy, high-$E_{\rm T}$ jets with separation pseudo-rapidity, opposite hemispheres, dijet mass. LHC could discover squarks up 340 GeV (390 GeV) an integrated luminosity 1000 ifb (3000 ifb).
This paper studies the pair production of doubly charged Higgs boson left-right symmetric model using a multilepton final state in vector fusionlike processes. The study is performed framework consistent with model's correction to standard ${\ensuremath{\rho}}_{\mathrm{EW}}$ parameter. Vector fusion topological cuts, number leptons, and ${p}_{T}$ cuts on leptons are found be effective suppressing background. Significant mass reach can achieved for exclusion/discovery upcoming LHC run...
This Resource Book reviews the physics opportunities of a next-generation e+e- linear collider and discusses options for experimental program. Part 1 contains table contents introduction gives summary case 500 GeV collider.
The vector boson fusion (VBF) topology at the Large Hadron Collider 14 TeV provides an opportunity to search for new physics. A feasibility study of sleptons in a compressed mass spectra scenario is presented final state two jets, one or low $p_{T}$ non-resonant leptons, and missing energy. presence VBF tagged jets energy are effective reducing Standard Model backgrounds. Using smuon production with difference between $\tilde{l}_{L}$ $\tilde{\chi}_{1}^0$ 5-15 GeV, significance observing...
We investigate models of a heavy neutral gauge boson ${Z}^{\ensuremath{'}}$ coupling mostly to third generation quarks and second leptons. In this scenario, bottom arising from gluon splitting can fuse into allowing the LHC probe it. generic framework presented, anomalies in $B$-meson decays reported by LHCb experiment imply flavor-violating $bs$ featured constraining lowest possible production cross section. A novel approach searching for...
We present the dijet invariant-mass distribution in region between 60 and 500 GeV, measured 1.8-TeV $\overline{p}p$ collisions Collider Detector at Fermilab. Jets are restricted to pseudorapidity interval $|\ensuremath{\eta}|<0.7$. Data compared with QCD calculations; axigluons excluded 95% confidence $120<{M}_{A}<210$ GeV for axigluon width ${\ensuremath{\Gamma}}_{A}=\frac{N{\ensuremath{\alpha}}_{s}{M}_{A}}{6}$, $N=5$.
Pair production of light top squarks at the 8-TeV LHC can be used to probe gaugino-Higgsino sector Minimal Supersymmetric Standard Model. The case where lightest neutralino is a mixture Bino and Higgsino, satisfying thermal dark matter relic density, investigated. In such scenario, squark decays mostly into $(i)$ quark plus second or third neutralino, $(ii)$ bottom chargino, instead decay scenario neutralino. Final states with $\geq 2$ jets, dileptons, missing energy are expected in...
We study the dark matter (DM) discovery prospect and its spin discrimination in theoretical framework of gauge invariant renormalizable Higgs portal DM models at ILC with $$\sqrt{s} = 500$$ GeV. In such models, pair is produced association a Z boson. case singlet scalar DM, mediator just SM boson, whereas for fermion or vector there an additional that mixes which produces significant observable differences. After careful investigation signal backgrounds both parton level detector level, we...