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Recent developments of Perturbation Theory (PT), specifically the Effective Field Theory of Large Scale Structure (EFTofLSS) and its equivalents, have proven powerful in analyzing galaxy clustering statistics such as the galaxy power…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-22 Joseph Tomlinson , Donghui Jeong

We modify the symmetric-teleparallel dark energy through the addition of a further Yukawa-like term, in which the non-metricity scalar, $Q$, is non-minimally coupled to a scalar field Lagrangian where the phion acts as quintessence,…

General Relativity and Quantum Cosmology · Physics 2024-06-04 Youri Carloni , Orlando Luongo

We study strong coupling phenomena in U(1) gauge theory on the non-commutative plane. To do so, we make use of a T-dual description in terms of an $N\to\infty$ limit of U(N) gauge theory on a commutative torus. The magnetic flux on this…

High Energy Physics - Theory · Physics 2009-11-07 Z. Guralnik

Flavor-changing signatures of Lorentz and CPT violation involving muon-electron conversions in muonic atoms are studied using effective field theory. Constraints on coefficients for Lorentz violation at parts in $10^{-12}$ GeV$^{-1}$ for…

High Energy Physics - Phenomenology · Physics 2025-01-13 Alan Kostelecky , W. P. McNulty , E. Passemar , N. Sherrill

We study the suppression of non-planar diagrams in a scalar QCD model of a meson system in $3+1$ space-time dimensions due to the inclusion of the color degrees of freedom. As a prototype of the color-singlet meson, we consider a…

High Energy Physics - Theory · Physics 2018-01-17 J. H. Alvarenga Nogueira , Chueng-Ryong Ji , E. Ydrefors , T. Frederico

In dense matter like the Supernovae and at high energy, neutrinos have two points where the nonadiabatic transitions could occur. With the present values of the oscillation parameters in the standard three flavor scenario, two nonadiabatic…

High Energy Physics - Phenomenology · Physics 2010-03-16 K. Yamamoto

Basis Light-front Quantization (BLFQ) is a newly developed nonperturbative approach, aiming at solving relativistic bound systems based on the Hamiltonian formalism of light-front dynamics. In this work, we introduce its application to the…

Nuclear Theory · Physics 2020-09-07 Kaiyu Fu , Hengfei Zhao , Xingbo Zhao , James P. Vary

We study the part of the renormalized, cutoff QED light-front Hamiltonian that does not change particle number. The Hamiltonian contains interactions that must be treated in second-order bound state perturbation theory to obtain hyperfine…

High Energy Physics - Phenomenology · Physics 2010-11-19 Martina Brisudova , Robert Perry

We give an overview of the light-front holographic approach to strongly coupled QCD, whereby a confining gauge theory, quantized on the light front, is mapped to a higher-dimensional anti de Sitter (AdS) space. The framework is guided by…

High Energy Physics - Phenomenology · Physics 2015-05-27 Guy F. de Teramond , Stanley J. Brodsky

The light-front (LF) quantization of the bosonized Schwinger model is discussed in the "continuum formulation". The proposal, successfully used earlier for describing the spontaneous symmetry breaking (SSB) on the LF, of separating first…

High Energy Physics - Theory · Physics 2007-05-23 Prem P. Srivastava

Low-energy $\mu$SR (LE-$\mu$SR) enables depth-resolved studies of magnetic and electronic properties from the surface into the near-surface region, but the measured transverse-field asymmetry is not an intrinsic constant and depends on…

Instrumentation and Detectors · Physics 2026-04-14 G. Janka , Z. Salman , A. Suter , T. Prokscha

We investigate the transition probabilities for the "flavor" eigenstates in the two-level quantum system, which is described by a non-Hermitian Hamiltonian with the parity and time-reversal (PT) symmetry. Particularly, we concentrate on the…

Quantum Physics · Physics 2021-04-19 Tommy Ohlsson , Shun Zhou

In this work we compare mass spectra and decay constants obtained from two recent, independent, and fully relativistic approaches to the quarkonium bound-state problem: the Hamiltonian basis light-front quantization (BLFQ) approach, where…

High Energy Physics - Phenomenology · Physics 2017-11-22 Sofia Leitão , Yang Li , Pieter Maris , M. T. Peña , Alfred Stadler , James P. Vary , Elmar P. Biernat

The electron and muon number violating muonium-antimuonium oscillation process in an extended Minimal Supersymmetric Standard Model is investigated. The Minimal Supersymmetric Standard Model is modified by the inclusion of three…

High Energy Physics - Phenomenology · Physics 2009-01-16 Boyang Liu

Generating a unitary transformation in the shortest possible time is of practical importance to quantum information processing because it helps to reduce decoherence effects and improve robustness to additive control field noise. Many…

The relativistic degrees of freedom ($N_{\rm eff}$) is one of the crucial cosmological parameters. The precise measurement of $N_{\rm eff}$ at the time of cosmic microwave background formation, by Planck 2018 can be used to understand the…

High Energy Physics - Phenomenology · Physics 2024-09-24 Dilip Kumar Ghosh , Purusottam Ghosh , Sk Jeesun , Rahul Srivastava

In the light-front (LF) formulation of quantum field theory (QFT), physics is formulated from the perspective of a massless observer necessarily traveling at the speed of light. The LF formulation provides an alternative computational…

Quantum Physics · Physics 2026-03-20 Sam Alterman , Peter J. Love

The Berezin-Klauder-Toeplitz ("anti-Wick") quantization or "non-commutative reading" of the complex plane, viewed as the phase space of a particle moving on the line, is derived from the resolution of the unity provided by the standard (or…

We apply the basis light front quantization (BLFQ) approach to describe the valence structures of the charged light meson ground states. Specifically, the light front wavefunctions of $\pi^\pm$, $\rho^\pm$, $K^\pm$, and $K^{*\pm}$ are…

Nuclear Theory · Physics 2019-03-27 Shaoyang Jia , James P. Vary

The nonrelativistic energies of the homonuclear ion T$_2^+$ are calculated for the ground state using the Lagrange-mesh method as was done for the isotopomers H$_2^+$ and D$_2^+$ ({\it J. Phys. B: At. Mol. Opt. Phys.} {\bf 45} 065101 and…

Atomic and Molecular Clusters · Physics 2015-06-19 Horacio Olivares Pilón