Neal Weiner
(NYU)
11/06/2014, 09:00
James Beacham
(New York University)
11/06/2014, 11:20
APEX is a fixed target experiment in Experimental Hall A at Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA, that is designed to search for a new gauge boson (A') with sub-GeV mass and coupling to ordinary matter of g'/e ~ (1 - 10^-4). Electrons impinge upon a fixed target of high-Z material to produce an A' via a process analogous to photon bremsstrahlung. The A' then...
John A Jaros
(SLAC National Accelerator Laboratory)
11/06/2014, 11:40
HPS is an new experiment at Jefferson Laboratory designed to look for hidden sector photons in the mass range 20 - 1000 MeV with couplings a'/a in the range 10-5 to 10-10. Presently under construction, HPS will be installed this fall in Hall B at JLab, commission thereafter, and take data in 2015. Heavy photons are identified as invariant mass bumps and as separated decay verticies. The...
Michael Distler
(University Mainz, Germany)
11/06/2014, 12:00
The A1 collaboration at the Mainz Microtron has concluded a pilot study in 2011 and data taking periods in 2012/2013 to search for a dark photon. The focus of the experiment was on the mass range between 50-200 MeV where dark matter provides a possible explanation for the discrepancy in the anomalous magnetic moment of the muon (g-2). The analysis is finished and the final exclusion limits...
Brian Batell
(University of Chicago)
11/06/2014, 14:00
Philip Schuster
(Perimeter Institute)
11/06/2014, 14:30
Jeremy Mardon
(Stanford)
11/06/2014, 14:55
Prof.
David Brown
(University of Louisville)
11/06/2014, 16:00
Extensions to the Standard Model allow for new particles, including low-mass Higgs bosons and dark photons, that may bridge the Standard Model to the Dark Sector. We present recent results of searches for such particles in electron-positron annihilation with the BaBar Detector at the SLAC National Accelerator Laboratory. We also report briefly on a measurement of antideuteron production at...
Igal Jaegle
(University of Hawaii at Manoa)
11/06/2014, 16:20
We will present a new Belle (preliminary) limit in the search for a dark photon, A, and a dark Higgs, h', with A and h' prompt, mh' > 2mA, 100 MeV < mA < 3.5 GeV and 200 MeV < mh' < 10.5 GeV. We will also discuss possible future contributions of Belle II to dark sector particle searches.
Elizabeth Worcester
(BNL)
11/06/2014, 16:40
The dark photon couples to Standard Model particles via kinetic mixing, so it may be produced in SM processes and decay to SM particles. Experiments that are designed for precise measurements of meson decay and detection of rare meson decay have high-resolution detectors and large data samples, making them well suited to search for dark photons. I will describe limits on dark photons from...
Yorito Yamaguchi
(University of Tokyo)
11/06/2014, 17:00
Several theoretical models introduce an additional U(1) gauge boson, a "dark photon" which mixes with ordinary QED photons with very small mixing strength. The dark photon is considered as one of the strongest candidates to describe some astrophysical anomalies as well as the 3sigma deviation of the experimental muon g-2 value from the Standard Model calculation. The dark photon as the cause...
Dr
Hye-Sung Lee
(College of William and Mary / Jefferson Lab)
11/06/2014, 17:20
Ze'ev Surujon
(Stony Brook University)
12/06/2014, 09:00
Exotic Higgs decays may be our main window to new physics.
They are common and often well-motivated in various new physics scenarios,
partly due to the small natural width of the Higgs.
Some exotic decay modes are cascades resulting in high multiplicity of
the final state, and are therefore potentially spectacular.
Still, they could easily be missed, partly due to triggering...
Aysen Tatarinov
(Texas A&M University)
12/06/2014, 09:30
The results of searches for invisible decays of the Higgs boson in the vector boson fusion and associated ZH production modes, where Z decays to a pair of charged leptons or a bbbar quark pair, are presented. Searches performed using data collected in proton-proton collisions at center-of-mass energies of 7 TeV and 8 TeV by the CMS experiment at the LHC. With no excess of the observed data...
Stefano Giagu
(Sapienza University of Rome)
12/06/2014, 09:55
The discovery of a Higgs-like particle in ATLAS and CMS at the Large Hadron Collider opened a rich and interesting range of opportunities for discovery of exotic decays, i.e. decays that involve new light states beyond the SM. A large class of simplified and complete models gives rise to peculiar patterns of exotic decays of the Higgs boson, patterns that the ATLAS experiment is exploring...
Kyoungchul Kong
(University of Kansas)
12/06/2014, 10:20
We suggest top quark decays as a venue to search for light dark force carriers. The top quark is the heaviest particle in the standard model whose decays are relatively poorly measured, allowing sufficient room for exotic decay modes from new physics. A very light (GeV scale) dark gauge boson (Z') is a recently highlighted hypothetical particle that can address some astrophysical anomalies as...
Steven Schramm
(University of Toronto)
12/06/2014, 11:10
Numerous independent astrophysical experiments have observed and measured the influence of the phenomenon named Dark Matter, but its nature is still unknown. If the assumption that Dark Matter is a particle which has a weak coupling to the Standard Model is valid, then collider searches have the ability to search for the production of this new Weakly Interacting Massive Particle (WIMP). Any...
Jordan Damgov
(Texas Tech University)
12/06/2014, 11:30
Gordon Watts
(University of Washington)
12/06/2014, 11:50
Hidden Valley models contain a hidden sector that communicates with the Standard Model via a scalar. The hidden sector phenomenology is unconstrained. It can be as complex or simple as desired, and prompt or long lived. In this case we explore the ATLAS program to search for long lived versions of the Hidden Valley model. The benchmark model is fairly simple, produces two hidden valley pions...
John Paul Chou
(Rutgers University)
12/06/2014, 12:10
Fedor Ratnikov
(Inst. für Exp. Kernphysik)
12/06/2014, 14:00
In this talk I will discuss Implications of CMS Run 1 SUSY searches for the SUSY neutralino as a WIMP Dark Matter candidate
Estel Perez Codina
(TRIUMF)
12/06/2014, 14:20
Supersymmetry provides an excellent dark matter candidate. SUSY searches at ATLAS are sensitive to an extensive range of scenarios with either a neutralino or a gravitino as the lightest supersymmetric particle. In this talk I will present the latest results from analyses carried out using the Run 1 dataset collected by ATLAS at the LHC at 8 TeV center of mass energy.
James Philip Ilten
(Massachusetts Institute of Technology)
12/06/2014, 14:40
LHCb, located on the LHC, is a fully instrumented forward detector
with flexible triggers, low pileup, and excellent secondary vertex
resolution which make it an ideal experiment to search for unique
exotic signals. A review of current LHCb exotic particle searches is
given. Searches for the anomalous decays of B-mesons and tau-leptons
are presented, as well as direct searches through...
Taku Gunji
(Center for Nuclear Study, the University of Tokyo)
12/06/2014, 15:00
ALICE is one of the largest experiments at the Large Hadron Collider at CERN and is designed to study the physics of strongly interacting matter at extreme high temperature and energy densities created in high-energy heavy ion collisions. ALICE has a good potential to search for a dark photon signal in pi0 and eta Dalitz decays, thanks to the excellent resolution of the tracking system and the...
Kathryn Zurek
(University of Michigan)
12/06/2014, 16:00
Neelima Sehgal
(Stony Brook University)
12/06/2014, 17:00
The Cosmic Microwave Background (CMB) is a remarkably powerful and clean probe of dark matter annihilation. I will review the constraints from existing CMB and low-redshift data, and discuss future prospects from current and upcoming CMB experiments such as Planck and Advanced ACTpol. Many simple models designed to explain various indirect detection anomalies can be decisively tested with...
Sergei Dubovsky
(New York University)
13/06/2014, 09:00
I will discuss electromagnetic signals of black hole superradiance in the presence of an axion coupled to a hidden QCD-like sector.
Benjamin Brubaker
(Yale University)
13/06/2014, 09:30
The axion is a well-motivated cold dark matter candidate first postulated to explain the absence of CP violation in strong interactions. Dark matter axions may be detected via their resonant conversion into photons in a high-Q microwave cavity permeated by a strong magnetic field. The Axion Dark Matter eXperiment (ADMX) has used this technique to exclude axion models in the few μeV mass range....
Surjeet Rajendran
(Stanford)
13/06/2014, 09:55
We propose an experiment to search for QCD axion and axion-like-particle (ALP) dark matter. Nuclei that are interacting with the background axion dark matter acquire time-varying CP-odd nuclear moments such as an electric dipole moment. In analogy with nuclear magnetic resonance, these moments cause precession of nuclear spins in a material sample in the presence of a background electric...
Bryce Littlejohn
(University Of Cincinnati)
13/06/2014, 11:00
The existence of sterile neutrinos has been presented as an explanation for many anomalous results in experimental astro-particle physics. This talk will discuss existing experimental indications for eV-scale sterile neutrinos, while surveying future prospects for resolving these hints at accelerator, reactor, and radioactive source neutrino experiments.
Kendrik Smith
(Perimeter Institute)
13/06/2014, 11:30
Maxim Pospelov
(University of Victoria)
13/06/2014, 12:00
