A5044705808- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- Noncommutative and Quantum Gravity Theories
- Quantum Mechanics and Applications
- Physics of Superconductivity and Magnetism
- Computational Physics and Python Applications
- Relativity and Gravitational Theory
- Muon and positron interactions and applications
- Atomic and Subatomic Physics Research
- High-Energy Particle Collisions Research
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Electrodynamics and Casimir Effect
- Superconducting Materials and Applications
- Quantum, superfluid, helium dynamics
- Galaxies: Formation, Evolution, Phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Geophysics and Gravity Measurements
- Advanced NMR Techniques and Applications
- Quantum Mechanics and Non-Hermitian Physics
- Radiation Detection and Scintillator Technologies
The University of Texas Southwestern Medical Center
2022
Rutgers Sexual and Reproductive Health and Rights
2022
University of California, Berkeley
2008-2021
Lawrence Berkeley National Laboratory
2011-2021
Rutgers, The State University of New Jersey
1995-2018
Stanford University
1983-2018
University of North Carolina at Chapel Hill
2016
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2011-2015
Tohoku University
2015
University of California System
2014
We suggest and motivate a precise equivalence between uncompactified 11-dimensional $M$ theory the $N=\ensuremath{\infty}$ limit of supersymmetric matrix quantum mechanics describing $D0$ branes. The evidence for conjecture consists several correspondences two theories. As consequence supersymmetry simple model is rich enough to describe properties entire Fock space massless well separated particles supergravity theory. In one particular kinematic situation leading large distance interaction...
We present results from the first phase of KamLAND-Zen double-beta decay experiment, corresponding to an exposure 89.5 kg yr $^{136}\mathrm{Xe}$. obtain a lower limit for neutrinoless half-life ${T}_{1/2}^{0\ensuremath{\nu}}>1.9\ifmmode\times\else\texttimes\fi{}{10}^{25}\text{ }\text{ }\mathrm{yr}$ at 90% C.L. The combined and EXO-200 give ${T}_{1/2}^{0\ensuremath{\nu}}>3.4\ifmmode\times\else\texttimes\fi{}{10}^{25}\text{ C.L., which corresponds Majorana neutrino mass...
The recent long-term shutdown of Japanese nuclear reactors has resulted in a significantly reduced reactor ν¯e flux at KamLAND. This running condition provides unique opportunity to confirm and constrain backgrounds for the oscillation analysis. data set also improved sensitivity other signals, particular ν¯e’s produced β-decays from U238 Th232 within Earth’s interior, whose energy spectrum overlaps with that ν¯e’s. Including constraints on θ13 accelerator short-baseline neutrino...
We present new constraints on the neutrino oscillation parameters $/textyen Delta m^{2}_{21}$, theta_{12}$, and theta_{13}$ from a three-flavor analysis of solar KamLAND data. The data set includes acquired following radiopurity upgrade amounts to total exposure $3.49 \textyen times 10^{32}$ target-proton-year. Under assumption {\textyen it CPT} invariance, two-flavor (/textyen mbox{$\textyen theta_{13} = 0$}) yields best-fit values $\textyen tan^{2} theta_{12} 0.444^{+0.036}_{-0.030}$...
We report the results of a search for neutrinoless double-beta decay in 9.8 kg yr exposure (130)Te using bolometric detector array, CUORE-0. The characteristic energy resolution and background level region interest are 5.1±0.3 keV FWHM 0.058±0.004(stat)±0.002(syst)counts/(keV yr), respectively. median 90% C.L. lower-limit half-life sensitivity experiment is 2.9×10(24) surpasses previous searches. find no evidence place Bayesian lower bound on half-life, T(1/2)(0ν)>2.7×10(24) at Combining...
This is the first in a series of papers on large-order behavior perturbation theory for coupled anharmonic oscillators. We exploit previously published dispersion techniques to convert calculation large order into barrier-penetration problem. then introduce new semiclassical methods describing tunneling through nonspherically symmetric, $N$-dimensional potentials. To illustrate our methods, we calculate simple system two equal-mass oscillators with quartic coupling. Our predictions are...
It is conjectured that M-theory in asymptotically flat spacetime must be supersymmetric, and the observed SUSY breaking low energy world attributed to existence of a nonzero cosmological constant. This would consistent with experiment, if {\it critical exponent} $\alpha$ relation $M_{SUSY} \sim M_P (\Lambda /M_P^4)^{\alpha}$ took on value 1/8, rather than its classical 1/4. We attribute this large renormalization effect virtual black holes via UV/IR correspondence.
We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg $^{136}$Xe. The measured two-neutrino half-life $^{136}$Xe is $T_{1/2}^{2\nu} = 2.38 \pm 0.02(stat) 0.14(syst) \times 10^{21}$ yr, consistent a recent measurement by EXO-200. also obtain lower limit for neutrinoless half-life, $T_{1/2}^{0\nu} > 5.7 10^{24}$ yr at 90% confidence level (C.L.), which corresponds to almost five-fold improvement over previous limits.
We investigate the proposal by Callan, Giddings, Harvey, and Strominger (CGHS) that two-dimensional quantum fluctuations can eliminate singularities horizons formed matter collapsing on nonsingular extremal black hole of dilaton gravity. argue this scenario could in principle resolve all paradoxes connected with Hawking evaporation holes. However, we show generic solution model CGHS is singular. propose modifications their which may allow to be realized a consistent manner.
Neutrinoless double-beta (0<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi>ν</mml:mi><mml:mi>β</mml:mi><mml:mi>β</mml:mi></mml:math>) decay is a hypothesized lepton-number-violating process that offers the only known means of asserting possible Majorana nature neutrino mass. The Cryogenic Underground Observatory for Rare Events (CUORE) an upcoming experiment designed to search 0<mml:math id="M2"><mml:mi>ν</mml:mi><mml:mi>β</mml:mi><mml:mi>β</mml:mi></mml:math>decay...
We develop a general formalism for calculating the large-order behavior of perturbation theory quantized systems unequal-mass coupled anharmonic oscillators. Our technique is based on generalization semiclassical approximation which was used to study equal-mass oscillators in first paper this series. The problem much more difficult because path minimizes classical action not straight line. Assuming that tunneling known, we derive expression physical-optics wave function particle. This...
The Cryogenic Underground Observatory for Rare Events (CUORE) is designed to search neutrinoless double beta decay of 130Te with an array 988 TeO2 bolometers operating at temperatures around 10 mK. experiment currently being commissioned in Hall A Laboratori Nazionali del Gran Sasso, Italy. goal CUORE reach a 90\% C.L. exclusion sensitivity on the \tect half-life 9$\times$10$^{25}$ years after 5\,years data taking. main issue be addressed accomplish this aim rate background events region...
We present the results of a search for extraterrestrial electron antineutrinos ('s) in energy range using KamLAND detector. In an exposure 4.53 kton-year, we identify 25 candidate events. All events can be attributed to background, most importantly neutral current atmospheric neutrino interactions, setting upper limit on probability 8B solar νe's converting into 's at 5.3 × 10−5 (90% CL), if assume undistorted shape. This corresponds flux 93 cm−2 s−1 or event rate 1.6 (kton − year)−1 above...
We report on the measurement of two-neutrino double beta decay half-life $^{130}$Te with CUORE-0 detector. From an exposure 33.4 kg$\cdot$y TeO$_2$, is determined to be $T_{1/2}^{2\nu}$ = [8.2 $\pm$ 0.2 (stat.) 0.6 (syst.)] $\times$ 10$^{20}$y. This result obtained after a detailed reconstruction sources responsible for counting rate, specific study those contributing neutrinoless region interest.
Neutrinoless double beta decay ( $$0\nu \beta $$ ) is one of the most sensitive probes for physics beyond Standard Model, providing unique information on nature neutrinos. In this paper we review status and outlook bolometric searches. We summarize recent advances in background suppression demonstrated using bolometers with simultaneous readout heat light signals. simulate several configurations a future CUORE-like bolometer array which would utilize these improvements present sensitivity...