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Showing 182 results for "armando castaneda" in Physics
Physics Preprint PDF DOI

Dispersive determination of resonances from $\pi\pi$ scattering data

Jose Ramon Pelaez, Pablo Raban, Jacobo Ruiz de Elvira · 2025

We provide a precise, model- and parametrization-independent dispersive determination of the $f_0(500)$, $\rho(770)$, $f_0(980)$, $f_2(1270)$, $f_0(1370)$, $\rho(1450)$, $f_0(1500)$, and $\rho_3(1690)…

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Physics Preprint PDF DOI

Linguistic Predictability and Search Complexity: How Linguistic Redundancy Constraints the Landscape of Classical and Quantum Search

Alessio Di Santo, Gabriella Lanziani · 2025

This study examines the quantitative relationship between linguistic regularities and computational search complexity through a hybrid classical-quantum framework applied to Renaissance Italian texts.…

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Physics Preprint PDF DOI

New Public Neutrino Alerts for Clusters of IceCube Events

Sarah Mancina, Sergio Cuenca, Elisa Bernardini (for the IceCube Collaboration) · 2025

The IceCube Neutrino Observatory searches for the origins of astrophysical neutrinos using various techniques to overcome the significant backgrounds produced by cosmic-ray air showers. One such techn…

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Physics Preprint PDF DOI

Thermal and Kinematic Properties of Ejecta in SN1987A revealed by XRISM

XRISM collaboration · 2025

We present an analysis of high-resolution spectra from the shock-heated plasmas in SN~1987A, based on an observation using the Resolve instrument onboard the X-Ray Imaging and Spectroscopy Mission (XR…

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Physics Preprint PDF DOI

Observational constraints on vector-like dark energy

C. S. C. M. Coelho, A.-L. Y. Gschrey, C. J. A. P. Martins · 2025

The canonical cosmological model to explain the recent acceleration of the universe relies on a cosmological constant, and most dynamical dark energy and modified gravity model alternatives are based …

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Physics Preprint PDF DOI

Nonlocal characteristics and argand diagram of two-qubit gates

M. Karthick Selvan, S. Balakrishnan · 2025

Nonlocal characteristics of a two-qubit gate are determined by its nonlocal part. The squared eigenvalues of the nonlocal part of a two-qubit gate exist on the unit circle in the complex plane. We sho…

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Physics Preprint PDF DOI

The Dusty Aftermath of a Rapid Nova: V5579 Sgr

A. Raj, M. S. Bisht, F. M. Walter, R. Pandey, C. E. Woodward, D. E. Harker, D. Bisht, H. P. Singh, A. Agarwal, J. C. Pandey, A. Joshi, K. Belwal, Christian Buil · 2024

V5579 Sgr was a fast nova discovered in 2008 April 18.784 UT. We present the optical spectroscopic observations of the nova observed from the Castanet Tolosan, SMARTS and CTIO observatories spanning o…

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Physics Preprint PDF DOI

Berezinskii-Kosterlitz-Thouless transition in rhenium nitride films

Kosuke Takiguchi, Yoshiharu Krockenberger, Yoshitaka Taniyasu, Hideki Yamamoto · 2024

The quest to manipulate and understand superconductivity demands exploring diverse materials and unconventional behaviors. Here, we investigate the BKT transition in synthesized ReN$_x$ thin films, de…

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Physics Preprint PDF DOI

Cosmic-Ray Physics at the South Pole

D. Soldin, P. A. Evenson, H. Kolanoski, A. A. Watson · 2023

The geographic South Pole provides unique opportunities to study cosmic particles in the Southern Hemisphere. It represents an optimal location to deploy large-scale neutrino telescopes in the deep An…

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Physics Preprint PDF DOI

Characteristics, Implementation and Applications of Special Perfect Entangler Circuits

M. Karthick Selvan, S. Balakrishnan · 2023

We discuss the characteristics of special perfect entanglers and construct single parameter two-qubit circuits which are locally equivalent to special perfect entanglers. We present the results obtain…

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Physics Preprint PDF DOI

Charge transfer and disorder-induced spin relaxation in La2NiMnO6 crystallites

R. Hissariya, R. Sharma, S. K. Mishra · 2022

Investigation of the electronic and spin structure in double perovskites is recently attracting significant attention, mainly driven by their unique multifunctional properties and other underlying cha…

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Physics Preprint PDF DOI

Cosmic rays as a feedback agent in primordial galactic ecosystems

Ellis R. Owen · 2022

High-redshift primordial galaxies have recently been found with evolved stellar populations and complex star-formation histories reaching back to 250 Myr after the Big Bang. Their intense bursts of st…

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Physics Preprint PDF DOI

Transport of Cosmic ray electrons from 1 AU to the Sun

Vahe' Petrosian, Elena Orlando, Andrew Strong · 2022

Gamma rays are produced by cosmic ray (CR) protons interacting with the particles at solar photosphere and by cosmic ray electrons and positrons (CRes) via inverse Compton scattering of solar phot…

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Physics Preprint PDF DOI

Survey of hyperfine structure measurements in alkali atoms

M. Allegrini, E. Arimondo, L. A. Orozco · 2022

The spectroscopic hyperfine constants for all the alkali atoms are reported. For atoms from lithium to cesium, only the long lived atomic isotopes are examined. For francium, the measured data for nuc…

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Physics Preprint PDF DOI

ARMADA II: Further Detections of Inner Companions to Intermediate Mass Binaries with Micro-Arcsecond Astrometry at CHARA and VLTI

Tyler Gardner, John D. Monnier, Francis C. Fekel, Jean-Baptiste Le Bouquin, Adam Scovera, Gail Schaefer, Stefan Kraus, Fred C. Adams, Narsireddy Anugu, Jean-Philippe Berger, Theo Ten Brummelaar, Claire L. Davies, Jacob Ennis, Douglas R. Gies, Keith J.C. Johnson, Pierre Kervella, Kaitlin M. Kratter, Aaron Labdon, Cyprien Lanthermann, Johannes Sahlmann, Benjamin R. Setterholm · 2022

We started a survey with CHARA/MIRC-X and VLTI/GRAVITY to search for low mass companions orbiting individual components of intermediate mass binary systems. With the incredible precision of these inst…

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Physics Preprint PDF DOI

Neutron size from high energy scattering data

Michael J. Longo · 2022

Alvarado, Aranda, and Bonilla propose a sub-GeV U(1)R gauge boson model to explain the proton charge radius discrepancy. Their model assumes opposite sign U(1)R charge assignments for up and down quar…

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Physics Preprint PDF DOI

Modeling Compact Objects with Effective Field Theory I: The Effective Action

Irvin Martinez · 2021

This is part 1 of 3 from the master's thesis: Modeling Compact Objects with Effective Field Theory, supervised by Amanda Weltman. Using the Effective Field Theory framework for extended objects and th…

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Physics Preprint PDF DOI

High-energy spectra of the atmospheric neutrinos: predictions and measurements

A. A. Kochanov, A. D. Morozova, T. S. Sinegovskaya, S. I. Sinegovsky · 2021

Statistical analysis is performed of the atmospheric neutrino flux models as compared with the data of Frejus, AMANDA-II, IceCube, ANTARES, and Super-Kamiokande experiments. The analysis enables the e…

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Physics Preprint PDF DOI

Design of a Robust Fiber Optic Communications System for Future IceCube Detectors

Robert Halliday, Tyce DeYoung, Chris Ng, Darren Grant, Brian Ferguson, Dean Shooltz (for the IceCube Collaboration) · 2021

In this work we discuss ongoing development of a hybrid fiber/copper data and timing infrastructure for the future IceCube-Gen2 detector. The IceCube Neutrino Observatory is a kilometer-scale detector…

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Physics Preprint PDF DOI

The Evolution of Materials Acceleration Platforms -- Towards the Laboratory of the Future with AMANDA

Jerrit Wagner, Christian G. Berger, Xiaoyan Du, Tobias Stubhan, Jens A. Hauch, Christoph J. Brabec · 2021

The development of complex functional materials poses a multi-objective optimization problem in a large multidimensional parameter space. Solving it requires reproducible, user independent laboratory …

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