203 research outputs found
Hunting magnetic monopoles and more with MoEDAL at the LHC
The MoEDAL experiment at the LHC is optimised to detect highly-ionising
particles such as magnetic monopoles, dyons and (multiply) electrically-charged
stable massive particles predicted in a number of theoretical scenarios.
MoEDAL, deployed in the LHCb cavern, combines passive nuclear track detectors
with magnetic monopole trapping volumes, while backgrounds are being monitored
with an array of MediPix detectors. The detector concept and its physics reach
is presented with emphasis given to recent results on monopoles.Comment: 4 pages, 2 figures; Contributed to the 13th Patras Workshop on
Axions, WIMPs and WISPs, Thessaloniki, May 15-19, 2017; based on
arXiv:1411.7651, arXiv:1612.07012 and arXiv:1703.0714
ATLAS Physics Results
The ATLAS experiment at the Large Hadron Collider at CERN has been
successfully taking data since the end of 2009 in proton-proton collisions at
centre-of-mass energies of 7 and 8 TeV, and in heavy ion collisions. In these
lectures, some of the most recent ATLAS results will be given on Standard Model
measurements, the discovery of the Higgs boson, searches for supersymmetry and
exotics and on heavy-ion results.Comment: 30 pages, 23 figures, Invited lectures in XII-th International
School-Seminar The Actual Problems of Microworld Physics, 22 July - 2 August,
2013, Gomel, Belarus, to appear in the proceeding
Highlights from SUSY searches with ATLAS
Supersymmetry (SUSY) is one of the most relevant scenarios of new physics
searched by the ATLAS experiment at the CERN Large Hadron Collider. In this
writeup the principal search strategies employed by ATLAS are outlined and the
most recent results for analyses targeting SUSY discovery are discussed. A wide
range of signatures is covered motivated by various theoretical scenarios and
topologies: strong production, third-generation fermions, long-lived particles
and R-parity violation, among others. The results are based on up to ~5 fb-1 of
data recorded during 2010-2011 at sqrt(s) = 7 TeV centre-of-mass energy by the
ATLAS experiment at the LHC.Comment: 8 pages, 8 figures, prepared for the 1st International Conference on
New Frontiers in Physics (ICFP 2012), 10-16 Jun 2012, Kolymbari, Crete,
Greece, submitted to EPJ Web of Conference
Dark matter: experimental and observational status
This brief review covers recent results on searches for dark matter in
collider experiments, as well as from direct and indirect detection
observatories. It focuses on generic searches for dark matter signatures at the
LHC, e.g. mono-X, dijets, etc. Recently observed astrophysical signals that may
provide hints of dark matter are also discussed.Comment: 6 pages, 3 figures; invited talk in 15th Marcel Grossmann Meeting on
Recent Developments in Theoretical and Experimental General Relativity,
Astrophysics, and Relativistic Field Theories (MG15); to appear in a World
Scientific e-book; matches version submitted to MG15 with updated references
and minor text change
Constraints on Dissipative Non-Equilibrium Dark Energy Models from Recent Supernova Data
Non-critical string cosmologies may be viewed as the analogue of
off-equilibrium models arising within string theory as a result of a cosmically
catastrophic event in the early Universe. Such models entail relaxing-to-zero
dark energies provided by a rolling dilaton field at late times. We discuss
fits of such non-critical models to high-redshift supernovae data, including
the recent ones by HST and ESSENCE and compare the results with those of a
conventional model with Cold Dark Matter and a cosmological constant and a
model invoking super-horizon perturbations.Comment: 5 pages LaTeX, 1 EPS figure. Contributed to Lake Louise Winter
Institute 2007: Fundamental Interactions, 19-24 Feb 2007, Lake Louise,
Alberta, Canad
Shedding Light on Dark Matter at Colliders
Dark matter remains one of the most puzzling mysteries in Fundamental Physics
of our times. Experiments at high-energy physics colliders are expected to shed
light to its nature and determine its properties. This review focuses on recent
searches for dark-matter signatures at the Large Hadron Collider, also
discussing related prospects in future e+e- colliders.Comment: 33 pages, 31 figures, invited review article for the International
Journal of Modern Physics A, references added, plots update
MoEDAL: Seeking magnetic monopoles and more at the LHC
The MoEDAL experiment (Monopole and Exotics Detector at the LHC) is designed
to directly search for magnetic monopoles and other highly ionising stable or
metastable particles arising in various theoretical scenarios beyond the
Standard Model. Its physics goals --largely complementary to the multi-purpose
LHC detectors ATLAS and CMS-- are accomplished by the deployment of plastic
nuclear track detectors combined with trapping volumes for capturing charged
highly ionising particles and TimePix pixel devices for monitoring. This paper
focuses on the status of the detectors and the prospects for LHC Run II.Comment: 9 pages, 6 figures; Talk at 2015 European Physical Society Conference
on High Energy Physics (EPS-HEP 2015), 22-29 July 2015, Vienna, Austria;
partly based on arXiv:1411.765
The MoEDAL experiment at the LHC: status and results
The MoEDAL experiment at the LHC is optimised to detect highly ionising
particles such as magnetic monopoles, dyons and (multiply) electrically charged
stable massive particles predicted in a number of theoretical scenarios.
MoEDAL, deployed in the LHCb cavern, combines passive nuclear track detectors
with magnetic monopole trapping volumes (MMTs), while spallation-product
backgrounds are being monitored with an array of MediPix pixel detectors. An
introduction to the detector concept and its physics reach, complementary to
that of the large general purpose LHC experiments ATLAS and CMS, will be given.
Emphasis is given to the recent MoEDAL results at 13 TeV, where the null
results from a search for magnetic monopoles in MMTs exposed in 2015 LHC
collisions set the world-best limits on particles with magnetic charges more
than 1.5 Dirac charge. The potential to search for heavy, long-lived
supersymmetric electrically-charged particles is also discussed.Comment: 15 pages, 12 figures; invited plenary talk in 5th Symposium on
Prospects in the Physics of Discrete Symmetries (DISCRETE 2016), 28 Nov - 3
Dec 2016, Warsaw, Poland; based on arXiv:1411.7651 and arXiv:1612.0701
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