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A recent analysis of pion photo-production multipoles using p(g,pi0) data from Mainz is repeated, successively adding constraints from other observables and varying the number of fitted partial waves. The original analysis is shown to have…

Nuclear Theory · Physics 2008-02-03 A. M. Sandorfi , J. Tonnison , S. Hoblit

In this paper, we prove that the general CNF satisfiability problem can be solved in $O^*(1.0638^L)$ time, where $L$ is the length of the input CNF-formula (i.e., the total number of literals in the formula), which improves the previous…

Data Structures and Algorithms · Computer Science 2022-08-18 Junqiang Peng , Mingyu Xiao

For field theories with a topological charge Q, it is often of interest to measure the topological susceptibility chi_t = ( < Q^2 > - < Q >^2 ) / V. If we manage to perform a Monte Carlo simulation where Q changes frequently, chi_t can be…

We report multipronged progress on the stochastic averaging approach to numerical analytic continuation of quantum Monte Carlo data. With the sampled spectrum parametrized with delta-functions in continuous frequency space, a calculation of…

Strongly Correlated Electrons · Physics 2023-01-11 Hui Shao , Anders W. Sandvik

Current approaches for compressing the Segment Anything Model (SAM) yield commendable results, yet necessitate extensive data to train a new network from scratch. Employing conventional pruning techniques can remarkably reduce data…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Zigeng Chen , Gongfan Fang , Xinyin Ma , Xinchao Wang

The CHIANTI atomic database contains atomic energy levels, wavelengths, radiative transition probabilities and electron excitation data for a large number of ions of astrophysical interest. Version 4 has been released, and proton excitation…

Astrophysics · Physics 2009-11-07 P. R. Young , G. Del Zanna , E. Landi , K. P. Dere , H. E. Mason , M. Landini

We present the final release of the multi-wavelength XMM-LSS data set,covering the full survey area of 11.1 square degrees, with X-ray data processed with the latest XMM-LSS pipeline version. The present publication supersedes the Pierre et…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-20 L. Chiappetti , N. Clerc , F. Pacaud , M. Pierre , A. Gueguen , L. Paioro , M. Polletta , O. Melnyk , A. Elyiv , J. Surdej , L. Faccioli

We present an incremental version (4FGL-DR2, for Data Release 2) of the fourth Fermi-LAT catalog of gamma-ray sources. Based on the first ten years of science data in the energy range from 50 MeV to 1 TeV, it uses the same analysis methods…

High Energy Astrophysical Phenomena · Physics 2020-12-18 J. Ballet , T. H. Burnett , S. W. Digel , B. Lott

In this paper, we discuss computational aspects to obtain accurate inferences for the parameters of the generalized gamma (GG) distribution. Usually, the solution of the maximum likelihood estimators (MLE) for the GG distribution have no…

Computation · Statistics 2017-07-26 Jorge Alberto Achcar , Pedro Luiz Ramos , Edson Zangiacomi Martinez

The reduced chi-squared statistic is a commonly used goodness-of-fit measure, but it cannot easily detect features near the noise level, even when a large amount of data is available. In this paper, we introduce a new goodness-of-fit…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-19 Keith Tauscher , David Rapetti , Jack O. Burns

Various precision determinations of the Fermi constant are compared. Included are muon and (leptonic) tau decays as well as indirect prescriptions employing $\alpha, m_Z, m_W, \ssthwmzms, \Gamma(Z\to\ell^+\ell^-)$, and $\Gamma(Z \to \nu\bar…

High Energy Physics - Phenomenology · Physics 2008-11-26 William J. Marciano

We present a new parameterization for $E_6$ inspired $SU(3)_C\times SU(3)_L\times U(1)_X$ extension of the Standard Model. New setup predicts all Cabibbo-Kobayashi-Maskawa mixing angles and quark masses, total of nine observable variables,…

High Energy Physics - Phenomenology · Physics 2022-12-01 Rena Ciftci , Abbas Kenan Ciftci , Oleg Popov

We have carried out a new evaluation of the eighth-order contribution to the electron g-2 using FORTRAN codes generated by an automatic code generator gencodeN. Comparison of the "new" result with the "old" one has revealed an inconsistency…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Aoyama , M. Hayakawa , T. Kinoshita , M. Nio

We work out predictions of the Linear Sigma Model for the $\gamma \gamma \to\pi^0 \pi^0$ cross section. We consider the sigma width, which is introduced in a consistent way with chiral Ward identities. The results of Chiral Perturbation…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. L. Lucio , G. Moreno , M. Napsuciale , J. J. Toscano

A $\chi^2$ analysis of several SUSY GUTs recently discussed in the literature is presented. We obtain global fits to electroweak data, which include gauge couplings, gauge boson masses, BR($b\to s\gamma$) and masses of fermions of all three…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tomas Blazek , Stuart Raby

An investigation of the {\alpha}-decay of $^{147}$Sm was performed using an ultra low-background Twin Frisch-Grid Ionisation Chamber (TF-GIC). Four natural samarium samples were produced using pulsed laser deposition in ultra high vacuum.…

Nuclear Experiment · Physics 2017-04-26 Heinrich Wilsenach , Kai Zuber , Detlev Degering , René Heller , Volker Neu

Detecting and measuring repetitiveness of strings is a problem that has been extensively studied in data compression and text indexing. However, when the data are structured in a non-linear way, like in the context of two-dimensional…

Data Structures and Algorithms · Computer Science 2024-04-11 Giuseppe Romana , Marinella Sciortino , Cristian Urbina

Approximate distributions for sum and difference of linearly correlated $\chi^{2}$ distributed random variables are derived. It is shown that they can be reduced to conveniently parametrized gamma and Variance-Gamma distributions,…

Methodology · Statistics 2019-06-25 Alberto Ferrari

Results of a partial wave analysis of new high-statistics data on $\gamma p\to p\eta$ from MAMI are presented. A fit using known broad resonances and only standard background amplitudes can not describe the relatively narrow peaking…

High Energy Physics - Phenomenology · Physics 2011-09-07 A. V. Anisovich , E. Klempt , V. Kuznetsov , V. A. Nikonov , M. V. Polyakov , A. V. Sarantsev , U. Thoma

We find some errors in previous calculation of leading log QCD corrections to $b \to s\gamma $ decay, which include corrections from $m_{top}$ to $M_W$ in addition to corrections from $M_{W}$ to $m_b$. The inclusive decay rate is found to…

High Energy Physics - Phenomenology · Physics 2016-08-14 Cai-Dian Lü , Jing-Liang Hu , Chong-Shou Gao
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