Aysen Tatarinov
(Texas A&M University)
14/06/2012, 08:15
We present an inclusive, signature-based search for groups of collimated muons (muon jets) designed to achieve high sensitivity to a broad class of models predicting such signatures and performed using data collected by the CMS experiment. The analysis searches for production of new light bosons which, depending on their mass, may have substantial branching ratio for decays into pairs of...
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Daisuke Yamato
(Osaka City University)
14/06/2012, 08:30
We present a search for the neutral higgs boson produced in associated with a vector boson using high-$p_{T}$ isolated like-sign dilepton events in $p\bar{p}$ collisions at $\sqrt{s}$ = 1.96 TeV. The data were collected with the CDF-II detector at the Fermilab Tevatron collider. We employ the Boosted Decision Tree technique for separating the backgrounds from signal events to improve the...
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Ian Howley
(The University of Texas at Arlington)
14/06/2012, 08:45
We present a search based on D0 data for the standard model Higgs boson in final states of two tau leptons and at least two jets, with one of the tau’s decaying to an electron and the second decaying hadronically. A number of Higgs production and decay processes contribute in different proportions as a function of Higgs boson mass. The identification of hadronically decaying tau leptons is...
Pramod Lamichhane
(Wayne State University)
14/06/2012, 09:00
A search for contact interactions has been performed using the dimuon mass spectrum based on LHC data of 5.3 fb-1 produced from proton-proton collisions and collected by the CMS detector in 2011 at center-of-mass energy of 7 TeV. Unlike the expectation from the contact interaction process, no significant deviation in the dimuon mass spectrum from the spectrum predicted by the standard model is...
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JYOTI JOSHI
(University of California, Riverside)
14/06/2012, 09:15
The large mass of the top quark, close to the electroweak symmetry-breaking scale, makes it a good candidate for probing physics beyond the Standard Model, including possible anomalous couplings. We examine DØ's data to study the Lorentz structure of the Wtb coupling. The standard model predicts a left-handed vector coupling at the Wtb vertex. The most general lowest dimension, CP-conserving...
Arnab Pal
(University of Texas at Arlington)
14/06/2012, 09:30
This analysis uses the Forward Proton Detector (FPD), a sub-system of the DØ detector at the Tevatron collider at Fermilab to measure the single diffractive differential cross section (dσ/(d|t|)) at √(s ) = 1.96 TeV center of mass energy. The single diffractive candidate sample was selected using triggers requiring hits in both proton detectors in an FPD spectrometer, and a veto on hits in the...
Christopher Prokop
(Northern Illinois University)
14/06/2012, 10:00
The Advanced Superconducting Test Accelerator (ASTA) at Fermilab is a superconducting linear electron accelerator currently undergoing construction at FNAL's New Muon Laboratory is planned to support a variety of user and Advanced Accelerator R&D (AARD) experiments. First beam is scheduled for 2012, and the beamline will be upgraded over the course of several years.
Timothy Kutnink
(Iowa State University)
14/06/2012, 10:15
NOvA is a long-baseline neutrino experiment that anticipates observing oscillations of muon neutrinos into electron neutrinos. The muon neutrino source is the NuMI beam line at Fermilab. The Near and Far Detectors are built off-axis at Fermilab and northern Minnesota respectively. In order to carry out the long term goals of the experiment, the NOvA Near Detector Prototype, built on the...
Joe Grange
(University of Florida)
14/06/2012, 10:30
With the newly confirmed large value of theta13, accelerator-based neutrino experiments will soon seek to measure the mass ordering and CP violation. To do so requires precise oscillation measurements using both neutrino and anti-neutrino beams. However, since these are never purely neutrino or anti-neutrino in content, the detector must be able to separate the two contributions. This is...
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Giuliano Maggi
(Universidad Santa María)
14/06/2012, 10:45
MINERvA is a neutrino experiment located at Fermilab. The main goal of the experiment is to study neutrino interactions using different targets and to measure differential neutrino cross sections. In this talk we concentrate on neutral pion reconstruction in the MINERvA experiment. We will show the present status of our energy, vertex and invariant mass reconstruction. This study is of...
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Jaewon Park
(University of Rochester)
14/06/2012, 11:00
nu_mu + e elastic scattering process is theoretically well understood in ~1% accuracy. This pure leptonic process has a distinct final state of a single, very forward electron. Measurement of the rate of such events provides a useful constraint on the muon neutrino flux incident on the MINERvA detector. Distinguishing electron from gamma background is important on the analysis. e/gamma...
Aaron Higuera
(Universidad de Guanajuato)
14/06/2012, 11:15
MINERvA is a neutrino scattering experiment in the NuMI beamline at Fermilab, designed to measure neutrino cross sections, final states and nuclear effects on a variety of targets in the few-GeV region. In order to calibrate the absolute energy scale of the detector, the MINERvA collaboration planned, designed, constructed and commissioned the MINERvA Test Beam experiment at Fermilab Test Beam...
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Bryce Littlejohn
(UW-Madison)
14/06/2012, 11:30
Many experiments in the last few decades have demonstrated the neutrino's ability to change flavor while traveling through space and time, or oscillate. One of the last remaining unknown parameters describing this oscillation, theta13, is crucial in defining the magnitude of CP-violation in the lepton sector and examining the neutrino's role in the universe's matter-antimatter asymmetry. The...
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Gonzalo Diaz Bautista
(Pontificia Universidad Catolica del Peru)
14/06/2012, 11:45
The Main INjector ExpeRiment v-A is neutrino-nucleus scattering experiment that uses the NuMI beamline located at Fermilab with the purpose of study different neutrino interactions with nuclear targets as C, Pb and Fe; and determine the corresponding cross sections of these interactions. Charge-current inclusive is one of the principal neutrino interaction channels and, due to in this channel...
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Hao Liu
(University of Virginia)
14/06/2012, 13:00
At CDF, we search for the associated production of a Higgs boson and a W boson, where the Higgs boson decays into a b + anti-b quark pair and the W boson decays into a lepton and the corresponding neutrino. Events are selected with a signature of a lepton, large missing transvers energy, and two or three jets. The events are selected by a variety of triggers, and those triggers are divided...
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Mehmet Vergili
(Cukurova University)
14/06/2012, 13:15
A search for dark matter particles and large extra dimensions in events with an energetic jet and an imbalance in transverse momentum is performed in a sample of pp collision data corresponding to an integrated luminosity of 5.0 fb-1collected at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The data are in good agreement with the expected contributions from standard model...
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Marat Gataullin
(Caltech)
14/06/2012, 13:30
Optimizing the performance of the CMS Electromagnetic Electromagnetic Calorimeter is crucial for a successful search for Higgs in the diphoton decay channel. In this talk, we will review the work done over the past two years to optimize the ECAL performance with an emphasis on the ECAL calibration and monitoring techniques.
Daniel Cruz
(Texas A&M University)
14/06/2012, 14:00
In this talk, we will present a brief overview of the CMS Tier3 site at Texas A&M Universty. It is largely unique in that we added resources to an already-existing cluster to create our site as opposed to creating a stand-alone system. We will comment on some of the particulars of our site, the advantages and disadvantages of this choice, as well as how it has performed. We will also discuss...
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Venkatesh Veeraraghavan
(Florida State University)
14/06/2012, 14:15
Several models of new physics, including split supersymmetry, predict the existence of a heavy particle, which is long-lived on timescales of the bunch spacing of the LHC. Such a particle would be observable using the Compact Muon Solenoid (CMS) at the Large Hadron Collider (LHC), and although produced at high momentum, it would travel slowly due to its large mass. We describe a search for...
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Masakazu Kurata
(University of Tsukuba)
14/06/2012, 14:30
The analysis to search for the Standard Model Higgs boson in high Pt lepton + 2 jets events is performed at the CDF experiment. To extract the information of signal like events from data, Dynamical Likelihood Method(DLM) is established. For the separation of signal against backgrounds, Support Vector Machine(SVM) is applied using the result of DLM and the final discriminant is formed with SVM...
Farinaldo Queiroz
(Fermilab & UFPB)
14/06/2012, 15:00
The South Pole Telescope (SPT), Atacama Cosmology Telescope (ACT), and Wilkinson Microwave Anisotropy Probe (WMAP) have each reported measurements of the cosmic microwave background’s (CMB) angular power spectrum which favor the existence of roughly one additional neutrino species, in addition to the three contained in the standard model of particle physics. Neutrinos influence the CMB by...
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Ritoban Basu Thakur
(Fermilab/ UIUC)
14/06/2012, 15:15
I will talk about the new SuperCDMS experiment. Using 10 kg of ultra cold (50 mK) Germanium detectors, this experiment will look for Dark Matter in the Soudan Underground Laboratory. Apart from being a traditional Dark Matter search, we also explore a novel low threshold search for light Dark Matter. We call this new search, CDMSlite. I will go over the motivation, detector physics and science...
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Son Cao
(The University of Texas at Austin)
14/06/2012, 15:45
The MINOS experiment uses two detectors separated by 734km to study neutrino oscillations between Fermilab and the Soudan Underground Laboratory. MINOS is also conducting a neutrino time of flight measurement between the two detectors. As a part of an improved technique, we have installed two identical pairs of small Auxiliary Detectors (AD) near both MINOS detectors to calibrate the...
Jesse Chvojka
(University of Rochester)
14/06/2012, 16:00
MINERvA is a fine-grained high statistics neutrino scattering
experiment located at Fermilab working to better understand low energy
(few GeV) neutrino and anti-neutrino cross-sections. Improved
understanding of cross-sections will reduce systematic errors
at current and future neutrino oscillation experiments. Recent
anti-neutrino charge current quasi-elastic (nu_mu_bar + p -> mu +...
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Jose Luis Palomino Gallo
(CBPF)
14/06/2012, 16:15
MINERvA is a neutrino-nucleus scattering experiment with multiple nuclear targets.
The experiment is looking for reconstruct neutral pion production, in charge current and neutral current interactions.
Neutral pions are detected through the 2 photons decay, then produce electromagnetic showers.
We will describe how we are reconstructing and identifying electromagnetic showers.
The...
Minerba Betancourt
(University of Minnesota)
14/06/2012, 16:30
NOvA is a long-baseline neutrino experiment using an off-axis neutrino beam produced by the NuMI neutrino beam at Fermilab. The NOvA experiment will measure quasi-elastic cross section at 2GeV. A short-term goal for the NOvA experiment is to develop a good understanding of the response of the detector. These studies are being carried out with the Near Detector prototype installed on the...
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Ulascan Sarica
(University of Rochester)
14/06/2012, 16:45
We investigate the “low-ν” method (developed by the CCFR/NUTEV collaborations) to determine the neutrino flux in a wide band neutrino beam at very low energies, a region of interest to neutrino oscillations experiments. Events with low hadronic final state energy nu < nu_cut (of 1, 2 and 5 GeV) were used by the MINOS collaboration to determine the neutrino flux in their measurements of...
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EVAN SHOCKLEY
(SAINT MARY'S UNIVERSITY OF MINNESOTA)
14/06/2012, 17:00
Evan R Shockley, Timothy D McDonald, and Paul J Nienaber, Department of Physics, Saint Mary’s University of Minnesota, Winona, MN 55987
The MicroBooNE detector, a liquid argon time projection chamber (LArTPC) positioned in the Booster Neutrino Beam (BNB) line at Fermilab, tracks charged particles produced by interactions of those neutrinos and uses large (eight-inch diameter)...
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Sonam Mahajan
(Panjab University, Chandigarh, India)
14/06/2012, 17:15
The Main Injector Particle Production (MIPP) Experiment at Fermilab is a hadron production experiment which uses 120 GeV/c primary protons from the Main Injector to produce secondary beams of charged pions, kaons, proton and anti-proton from 5 GeV/c to 90 GeV/c. It was designed to measure the total charged particle production of pions, kaons, protons and anti-protons using beams of charged...