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Browsing Research and Publications - Department of Physics & Astronomy by Title

Now showing items 1-20 of 1539

125 GeV Higgs Boson and the Type-II Seesaw Model

Okada, Nobuchika (Published for SISSA by Springer., 2013-03)

We study the vacuum stability and unitarity conditions for a 125 GeV Standard Model (SM)-like Higgs boson mass in the type-II seesaw model. We find that, as long as the seesaw scale is introduced below the SM vacuum ...
125 GeV Higgs Boson Mass and Muon g−2 in 5D MSSM

Okada, Nobuchika (2016-10-26)

In the minimal supersymmetric standard model (MSSM), the tension between the observed Higgs boson mass and the experimental result of the muon g − 2 measurement requires a large mass splitting between stops and ...
125 GeV Higgs boson mass from 5D gauge-Higgs unification

Carson, Jason; Okada, Nobuchika (2018)

In the context of a simple gauge-Higgs unification (GHU) scenario based on the gauge group SU(3) x U(1)' in a 5D flat space-time, we investigate the possibility of reproducing the observed Higgs boson mass of around 125 ...
125 GeV Higgs, Type III Seesaw and Gauge–Higgs Unification

Okada, Nobuchika (2012-09-17)

Recently, both the ATLAS and CMS experiments have observed an excess of events that could be the first evidence for a 125 GeV Higgs boson. This is a few GeV below the (absolute) vacuum stability bound on the Higgs mass in ...
A 2 Hour Quasi Period in an Ultraluminous X-Ray Source in NGC 628

Liu, Ji-Feng; Bregman, Joel N.; Lloyd-Davies, Ed; Irwin, Jimmy; Espaillat, Catherine; Seitzer, Patrick (2005-03-01)
The 2005 November Outburst in OJ 287 and the Binary Black Hole Model

Valtonen, M. J.; Nilsson, K.; Sillanpää, A.; Takalo, L. O.; Lehto, H. J.; Keel, William C.; Haque, S.; Cornwall, D.; Mattingly, A. (2006-05-20)
A 3 × 2 Texture for Neutrino Oscillations and Leptogenesis

Okada, Nobuchika (Elsevier, 2008-03-06)

In an economical system with only two heavy right-handed neutrinos, we postulate a new texture for 3 x 2 Dirac mass matrix m_D. This model implies one massless light neutrino and thus displays only two patterns of mass ...
A ~3.8 hr Periodicity From an Ultrasoft Active Galactic Nucleus Candidate

Lin, Dacheng; Irwin, Jimmy A.; Godet, Olivier; Webb, Natalie A.; Barret, Didier (2013-10-10)
3rd Karl Schwarzschild Meeting – Gravity and the Gauge/Gravity Correspondence, 24-28 July 2017, Frankfurt am Main, Germany

Nicolini, Piero; Kaminski, Matthias; Mureika, Jonas; Bleicher, Marcus (2017)
4D Edge Currents from 5D Chem-Simons Theory

Gupta, K. S.; Stern, Allen (Elsevier, 1995-05-22)

A class of two dimensional conformal field theories is known to correspond to three dimensional Chem-Simons theory. Here we claim that there is an analogous class of four dimensional field theories corresponding to five ...
About AGN Ionization Echoes, Thermal, Echoes, and Ionization Deficits in Low-Redshift Lyα Blobs

Schirmer, Mischa; Malhotra, Sangeeta; Levenson, Nancy A.; Fu, Hai; Davies, Rebecca L.; Keel, William C.; Torrey, Paul; Bennert, Vardha N.; Pancoast, Ann; Turner, James E. H. (2016-07-28)
Absence of the Holographic Principle in Noncommutative Chern-Simons Theory

Pinzul, A.; Stern, Allen (2001-12-03)

We examine noncommutative Chern-Simons theory on a bounded spatial domain. We argue that upon `turning on' the noncommutativity, the edge observables, which characterized the commutative theory, move into the bulk. We show ...
Abstract: E5.00005 : Spin and Orbital Magnetic Moments of Fe and Co in Co/Fe and Fe/Co Multilayers on Si from L2,3 Edge X-ray Magnetic Circular Dichroism Spectroscopy*

Mankey, Gary (2016)

Nanostructured FeCo thin films are interesting for magnetic recording applications due to their high saturation magnetization, high Curie temperature and low magnetocrystalline anisotropy. It is desirable to know how the ...
Abstract: H29.00006 : The Quality Enhancement Plan Matrix (12 Years and Still Tweaking the Process!)

Mankey, Gary (2009)

As an alumni of the 1997 New Faculty Workshop, I've had plenty of opportunities to experiment with the teaching methods introduced there. Most recently, faculty at UA have been asked to develop a Learner-Centered approach ...
Active Nuclei and Star-Forming Objects at z > 2: Metallicities, Winds, and Formation Histories

Keel, William C.; Wu, Wentao; Waddington, Ian; Windhorst, Rogier A.; Pascarelle, Sebastian M. (2002-06)
AdS/CFT far from equilibrium in a Vaidya setup

Wondrak, Michael F.; Kaminski, Matthias; Nicolini, Piero; Bleicher, Marcus (2017)

In this paper we apply the AdS/CFT correspondence to study a strongly coupled plasma far from equilibrium with a strong emphasis on the shear behavior. The plasma serves as a model for an electrically charged quark-gluon ...
AINUR: Atlas of Images of NUclear Rings

Buta, Ronald (2010-03-11)

We present the most complete atlas of nuclear rings to date. We include 113 rings found in 107 galaxies, six of which are elliptical galaxies, five are highly inclined disc galaxies, 18 are unbarred disc galaxies and 78 ...
All-flavour search for neutrinos from dark matter annihilations in the Milky Way with IceCube/DeepCore

IceCube Collaboration; Palczewski, T.; Pepper, J.A.; Toale, P.A.; Williams, D.R. (2016)

We present the first IceCube search for a signal of dark matter annihilations in the Milky Way using all-flavour neutrino-induced particle cascades. The analysis focuses on the DeepCore sub-detector of IceCube, and uses ...
Almost No-Scale Supergravity

Okada, Nobuchika (Published by Institute of Physics Publishing for SISSA/ISAS, 2003-05-16)

We construct an explicit 5-dimensional supergravity model that realizes the 'no scale' mechanism for supersymmetry breaking, with all moduli stabilized consistently by low-energy dynamics in the effective theory. Supersymmetry ...
Alternative renormalizable SO(10) GUTs and data fitting

Fukuyama, Takeshi; Okada, Nobuchika; Tran, Hieu Minh (2020)

The alternative renormalizable minimal \(SO\left(10\right)\) model is composed of the Yukawa couplings with \(\text{10}\oplus \text{120}\) Higgs fields, whereas the right-handed (RH) neutrino Majorana masses are generated ...

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Browsing Research and Publications - Department of Physics & Astronomy by Title

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