Bulletin of the American Physical Society
81st Annual Meeting of the APS Southeastern Section
Volume 59, Number 18
Wednesday–Saturday, November 12–15, 2014; Columbia, South Carolina
Session EC: High Energy Physics III |
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Chair: Bob Hirosky, University of Virginia Room: Richland II |
Thursday, November 13, 2014 4:00PM - 4:12PM |
EC.00001: Nature Itself in a Mirror Space-Time Rasulkhozha S. Sharafiddinov The unity of the structure of matter fields with flavor symmetry laws involves that the left-handed neutrino in the field of emission can be converted into the right-handed one and vice versa. These transitions together with classical solutions of the Dirac equation testify in favor of the unidenticality of masses, energies and momenta of neutrinos of the different components. If we recognize such a difference in masses, energies and momenta, accepting its ideas about that the left-handed neutrino and the right-handed antineutrino refer to long-lived leptons, and the right-handed neutrino and the left-handed antineutrino are of short-lived fermions, we would follow the mathematical logic of the Dirac equation in the presence of the flavor symmetrical mass, energy and momentum matrices. From their point of view, nature itself separates the Minkowski space into the left and the right spaces concerning a certain middle dynamical line. Thereby, it characterizes any Dirac particle both by left and by right space-time coordinates. It is not excluded therefore that whatever the main purposes each of earlier experiments about sterile neutrinos, namely, about right-handed short-lived neutrinos may serve as the source of facts confirming the existence of a mirror Minkowski space-time. [Preview Abstract] |
Thursday, November 13, 2014 4:12PM - 4:24PM |
EC.00002: Constraining Inflationary Dark Matter in the Luminogenesis Model Kevin J. Ludwick, Pham Q. Hung Using constraints from cosmological probes on inflation, and renormalization-group flow, we present constraints on the mass of dark-matter particles in a unification model with the gauge group $SU(3) \times SU(6) \times U(1)$, which breaks to the standard model with an extra gauge group for dark matter when the inflaton rolls into the true vacuum. In this model, inflaton decay gives rise to dark matter, which in turn decays to luminous matter in the right proportion that agrees with cosmological data. Some attractive features of this model include self-interacting dark matter, which may resolve the problems of dwarf-galaxy structures and dark-matter cusps at the centers of galaxies, and the absence of proton decay, which has evaded experimental detection to this day. [Preview Abstract] |
Thursday, November 13, 2014 4:24PM - 4:36PM |
EC.00003: Development of Techniques for a Dark Matter Search at the NOvA Far Detector Robert Mina A summary of efforts related to a Dark Matter search using upward going muons at the NOvA Far Detector in Ash River, MN is presented. WIMP annihilations conjectured to occur within the Sun are assumed and corresponding signal MC generation techniques developed for use within the NOvA framework. The properties of the annihilation produced neutrino signal were studied for simulated WIMPs of various masses and with different annihilation channels. An improved algorithm for extracting timing information from the data was integrated within the Data Driven Trigger, and its performance studied. Special concern was given to trigger on low-energy (less than 20 GeV) muons so as to compete within this regime with similar searches at other neutrino detectors. This study aims to use the neutrino detector as a neutrino telescope by isolating muon events that likely correspond to ``interesting'' astrophysical events and/or physics beyond the standard model. [Preview Abstract] |
Thursday, November 13, 2014 4:36PM - 4:48PM |
EC.00004: Numerical Methods used in a Dark Matter search at the NOvA Far Detector Eric Fries The NuMI Off-Axis Neutrino Appearance (NOvA) far detector will be used in a search for decay products of weakly interacting massive particles (WIMPs) as indirect evidence for the existence of dark matter. Muons passing through the detector are identified, and each muon has a set of hits associated with its track. The muon is assumed to be travelling at the speed of light from within the Earth out into space (an upward-going muon), and based off of this assumption each hit is assigned an expected time (eT). Each hit also has a measured time (mT). To identify if the track is upward-going or downward-going, mT is plotted against eT, and a likelihood ratio is calculated by comparing a linear fit with slope +1 (upward-going) versus a linear fit with slope -1 (downward-going). To keep trigger rates at a reasonable level of 10 Hz, roughly 99.99 percent of all cosmic muons must be rejected. [Preview Abstract] |
(Author Not Attending)
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EC.00005: Searching for Gravitational Waves from the Coalescence of High Mass Black Hole Binaries Liting Xiao We search for gravitational waves from the coalescence (inspiral, merger and ringdown) of binary black holes with data from the Laser Interferometer Gravitational-Wave Observatory (LIGO). Provided with well-described waveform models from General Relativity, matched filtering is employed in the GSTLAL analysis pipeline as the optimal detection technique for weak signals in Gaussian noise. The GSTLAL analysis pipeline filters data with waveform template banks, identifies triggers with SNR greater than 4, forms coincident triggers between multiple detectors in the LSC-Virgo Collaboration, and attempts to optimally separate signal from detector background noise fluctuations using a Chi-squared test. We analyze high-statistics simulations of binary merger waveforms injected into LIGO recolored S6 data to evaluate the pipeline search sensitivity and to test the readiness of the pipeline for Advanced LIGO. With Advanced LIGO fully in operation by 2015 and the upgraded analysis pipelines, the expected detection rate is increased to as much as 100 events/year or more as compared to 0.01-1 events/year in Initial LIGO. Our work will make it possible to detect gravitational waves from binary black hole coalescence in Advanced LIGO data with high confidence. [Preview Abstract] |
Thursday, November 13, 2014 5:00PM - 5:12PM |
EC.00006: The United Forces in the Nature of Matter Rasulkhozha S. Sharafiddinov The nature has been created so that to any of the electric $(E),$ weak $(W),$ strong $(S)$ and other types of charges corresponds a kind of inertial mass. The lepton $(l=e,$ $\mu,$ $\tau, ...)$ or its neutrino $(l=\nu_{l})$ masses and charges are united in rest mass $m_{l}^{U}$ and charge $e_{l}^{U}$ equal to all the mass and charge: $$m_{l}=m_{l}^{U}=m_{l}^{E}+m_{l}^{W}+m_{l}^{S}+..., \eqno(1)$$ $$e_{l}=e_{l}^{U}=e_{l}^{E}+e_{l}^{W}+e_{l}^{S}+.... \eqno(2)$$ Such a correspondence principle expresses the mass-charge duality [1], confirming that we cannot exclude the existence of both Coulomb and Newton parts in any of the existing types of the actions. In other words, each of all possible types of forces becomes function of corresponding components of the united masses or charges of the interacting objects. Therefore, any particle with the united mass and charge come forward in the system as a unified whole. Nobody is in force to separate its by parts in the mass or charge type dependence. This in turn expresses a great responsibility of gravity for the structure of the united forces as well as for their unified nature.\\[4pt] [1] R.S. Sharafiddinov, Bull. Am. Phys. Soc. 59, T1.00009 (2014). [Preview Abstract] |
Thursday, November 13, 2014 5:12PM - 5:24PM |
EC.00007: On a Mass-Charge Structure of Gauge Invariance Rasulkhozha S. Sharafiddinov The mathematical logic of a true nature of mirror symmetry expresses, in the case of the Dirac Lagrangian, the idea about that the left- and right-handed photons, respectively, refer to long- and short-lived particles. Such a difference in lifetimes says about that the photons of the different components have the unidentical masses, energies and momenta. This requires the generalization of the classical Klein-Gordon equation to the case of all types of bosons with a nonzero spin. The latter together with a new Dirac equation admits the existence of the second type of the local gauge transformation responsible for origination in the Lagrangian of an interaction Newton component which gives an inertial mass to all the interacting matter fields. The quantum mass operator and the mirror presentation of the classical Schr\"odinger equation suggest one more highly important equation. Findings show clearly that each of the quantum mass, energy and momentum operators can individually act to the wave function. They constitute herewith the Euler-Lagrange equation at the level of the mass-charge structure of gauge invariance. [Preview Abstract] |
Thursday, November 13, 2014 5:24PM - 5:36PM |
EC.00008: The Study on Test Beam Data of Mu2e Cosmic-Ray-Veto Scintillation Counter Prototype Yongyi Wu Mu2e is an experiment studying flavor violation in charged lepton interactions through searching for neutrino-less muon to electron decay. In the experiment, cosmic ray muons are anticipated to be a major source of background. They can produce signals indistinguishable to the desired signals in the detector. To cut this background, a cosmic-ray-veto (CRV) system with a high vetoing efficiency has been designed. The veto consists of plastic scintillation counters, and a prototype counter was tested at Fermilab in 2013 using a pulsed beam of $120~\mathrm{GeV}$ protons. The data were analyzed to study the features of the counter including single-channel time resolution, transversal light attenuation, photoelectron yields and the saturation effect of the SiPMs. The better understandings of the prototype's performance will contribute to design improvements enabling the experiment to reach the desired detecting efficiency in a cost-effective manner. [Preview Abstract] |
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