中文
相关论文

相关论文: Information Criteria for Selecting Parton Distribu…

200 篇论文

Quantum key distribution requires tight and reliable bounds on the secret key rate to ensure robust security. This is particularly so for the regime of finite block sizes, where the optimization of generalized R\'enyi entropic quantities is…

量子物理 · 物理学 2026-04-09 Rebecca R. B. Chung , Nelly H. Y. Ng , Yu Cai

From a machine learning point of view, identifying a subset of relevant features from a real data set can be useful to improve the results achieved by classification methods and to reduce their time and space complexity. To achieve this…

机器学习 · 计算机科学 2017-05-23 Pietro Cassara , Alessandro Rozza , Mirco Nanni

We extend the Rate-Distortion-Perception (RDP) framework to the R\'enyi information-theoretic regime, utilizing Sibson's $\alpha$-mutual information to characterize the fundamental limits under distortion and perception constraints. For…

信息论 · 计算机科学 2026-05-12 Jiahui Wei , Marios Kountouris

Parton distribution functions (PDFs) are an essential ingredient for theoretical predictions at colliders. Since their exact form is unknown, their handling and delivery for practical applications relies on approximate numerical methods. We…

高能物理 - 唯象学 · 物理学 2022-04-04 Markus Diehl , Riccardo Nagar , Frank J. Tackmann

Entanglement criteria for an $n$-partite quantum system with continuous variables are formulated in terms of R\'{e}nyi entropies. R\'{e}nyi entropies are widely used as a good information measure due to many nice properties. Derived…

量子物理 · 物理学 2017-05-22 Alexey E. Rastegin

Achieving the highest precision for theoretical predictions at the LHC requires the calculation of hard-scattering cross-sections that include perturbative QCD corrections up to (N)NNLO and electroweak (EW) corrections up to NLO. Parton…

We present an updated global analysis of collinearly factorized nuclear parton distribution functions (PDFs) at next-to-leading order in perturbative QCD. In comparison to our previous fit, EPPS16, the present analysis includes more data…

高能物理 - 唯象学 · 物理学 2022-05-25 Kari J. Eskola , Petja Paakkinen , Hannu Paukkunen , Carlos A. Salgado

We present an algorithm to extract the distance list from atomic pair distribution functions (PDFs) in a highly automated way. The algorithm is constructed via curve fitting based on a Debye scattering equation model. Due to the non-convex…

材料科学 · 物理学 2019-01-23 Ran Gu , Soham Banerjee , Qiang Du , Simon J. L. Billinge

We present a new methodology that is able to yield a simultaneous determination of the Parton Distribution Functions (PDFs) of the proton alongside any set of parameters that determine the theory predictions; whether within the Standard…

高能物理 - 唯象学 · 物理学 2022-05-12 Shayan Iranipour , Maria Ubiali

We systematically explore the parametrization dependence of the Parton Distribution Functions (PDFs) to better quantify the true uncertainty from global QCD analyses. To achieve this, we employ a novel technique that automates the…

高能物理 - 唯象学 · 物理学 2025-11-20 Lucas Kotz , Aurore Courtoy , Pavel Nadolsky , Fredrick Olness , Maximiliano Ponce-Chavez

The Kemeny aggregation problem consists of computing the consensus rankings of an election with respect to the well-known Kemeny-Young voting method. These consensus rankings satisfy various fundamental properties and are the geometric…

数据结构与算法 · 计算机科学 2026-03-17 Xuan Kien Phung , Sylvie Hamel

In this letter, we present a novel exponentially embedded families (EEF) based classification method, in which the probability density function (PDF) on raw data is estimated from the PDF on features. With the PDF construction, we show that…

机器学习 · 统计学 2016-08-24 Bo Tang , Steven Kay , Haibo He , Paul M. Baggenstoss

Let A be a matrix, c be any linear objective function and x be a fractional vector, say an LP solution to some discrete optimization problem. Then a recurring task in theoretical computer science (and in approximation algorithms in…

数据结构与算法 · 计算机科学 2011-04-26 Thomas Rothvoss

Despite being a well-established operational approach to quantify entanglement, R\'enyi entropy calculations have been plagued by their computational complexity. We introduce here a theoretical framework based on an optimal thermodynamic…

统计力学 · 物理学 2022-07-14 Miha Srdinšek , Michele Casula , Rodolphe Vuilleumier

Determination of crystal structures of nanocrystalline or amorphous compounds is a great challenge in solid states chemistry and physics. Pair distribution function (PDF) analysis of X-Ray or neutron total scattering data has proven to be a…

材料科学 · 物理学 2025-07-14 Magnus Kløve , Sanna Sommer , Bo B. Iversen , Bjørk Hammer , Wilke Dononelli

Modern analysis on parton distribution functions (PDFs) requires calculations of the log-likelihood functions from thousands of experimental data points, and scans of multi-dimensional parameter space with tens of degrees of freedom. In…

高能物理 - 唯象学 · 物理学 2022-08-24 DianYu Liu , ChuanLe Sun , Jun Gao

This paper studies the complexity of estimating Renyi divergences of discrete distributions: $p$ observed from samples and the baseline distribution $q$ known \emph{a priori}. Extending the results of Acharya et al. (SODA'15) on estimating…

信息论 · 计算机科学 2017-02-09 Maciej Skorski

Collinear parton distribution functions (cPDFs) and transverse momentum dependent distributions (TMDs) are essential for calculating cross sections in high-energy physics, particularly within collinear and kt-factorization frameworks.…

高能物理 - 唯象学 · 物理学 2026-02-16 R. Kord Valeshabadi , S. Rezaie

We complete the procedure of extracting parton distribution functions (PDFs) using large momentum effective theory (LaMET) at leading power accuracy in the hadron momentum. We derive a general factorization formula for the quasi PDFs in the…

高能物理 - 唯象学 · 物理学 2020-11-11 Wei Wang , Jian-Hui Zhang , Shuai Zhao , Ruilin Zhu

Multi-parton distribution functions (mPDFs) are non-perturbative objects that are important in the prediction of multiple scattering rates at hadron colliders. In the case where the scales associated with all partons in the mPDF are the…

高能物理 - 唯象学 · 物理学 2025-10-07 Oleh Fedkevych , Jonathan R. Gaunt , Seonagh Smith