中文
相关论文

相关论文: Improvement of $q^2$ resolution in semileptonic de…

200 篇论文

This paper proposed a new explicit nonlinear dimensionality reduction using neural networks for image retrieval tasks. We first proposed a Quasi-curvature Locally Linear Embedding (QLLE) for training set. QLLE guarantees the linear…

计算机视觉与模式识别 · 计算机科学 2017-03-14 Shenglan Liu , Jun Wu , Lin Feng , Feilong Wang

We present a method for solving the general mixed constrained convex quadratic programming problem using an active set method on the dual problem. The approach is similar to existing active set methods, but we present a new way of solving…

最优化与控制 · 数学 2019-12-02 Mattias Fält , Pontus Giselsson

Semileptonic and nonleptonic decays of the B_c meson to charmonium and D mesons are studied in the framework of the relativistic quark model. The decay form factors are explicitly expressed through the overlap integrals of the meson wave…

高能物理 - 唯象学 · 物理学 2011-03-23 D. Ebert , R. N. Faustov , V. O. Galkin

While numerous machine unlearning (MU) methods have recently been developed with promising results in erasing the influence of forgotten data, classes, or concepts, they are also highly vulnerable-for example, simple fine-tuning can…

机器学习 · 计算机科学 2026-04-10 Yichen Gao , Altay Unal , Akshay Rangamani , Zhihui Zhu

One of the most powerful methods of color image recognition is the two-dimensional principle component analysis (2DQPCA) approach, which is based on quaternion representation and preserves color information very well. However, the current…

计算机视觉与模式识别 · 计算机科学 2023-06-13 Zhi-Gang Jia , Zi-Jin Qiu , Qian-Yu Wang , Mei-Xiang Zhao , Dan-Dan Zhu

We present a complete $O(\alpha_s^2)$ correction to the differential width of the inclusive semileptonic decay $b\to cl\nu_l$ at the kinematical point of vanishing invariant mass of the leptons, $q^2=0$. Together with the recently computed…

高能物理 - 唯象学 · 物理学 2014-11-17 Andrzej Czarnecki , Kirill Melnikov

A successful application of quantum annealing to machine learning is training restricted Boltzmann machines (RBM). However, many neural networks for vision applications are feedforward structures, such as multilayer perceptrons (MLP).…

机器学习 · 计算机科学 2023-03-23 Frances Fengyi Yang , Michele Sasdelli , Tat-Jun Chin

One of the tasks in color image processing and computer vision is to recover clean data from partial observations corrupted by noise. To this end, robust quaternion matrix completion (QMC) has recently attracted more attention and shown its…

数值分析 · 数学 2024-10-22 Baohua Huang , Jiakai Chen , Wen Li

This paper introduces a machine learning approach to take a nonlinear differential-equation model that exhibits qualitative agreement with a physical experiment over a range of parameter values and produce a hybrid model that also exhibits…

动力系统 · 数学 2022-08-24 K. H. Lee , D. A. W. Barton , L. Renson

The first phase of a heavy quark program based on twisted mass valence quarks has been presented at last years's lattice conference. The CLS $N_f=2+1$ ensembles were used for their fine lattice spacing, while twisting the masses is expected…

高能物理 - 格点 · 物理学 2019-11-07 Julien Frison , Andrea Bussone , Gregorio Herdoíza , Carlos Pena , Jose Ángel Romero , Javier Ugarrio

Transformers have emerged as the leading architecture in deep learning, proving to be versatile and highly effective across diverse domains beyond language and image processing. However, their impressive performance often incurs high…

Two-dimensional (2D) materials have been a central focus of recent research because they host a variety of properties, making them attractive both for fundamental science and for applications. It is thus crucial to be able to identify…

材料科学 · 物理学 2022-11-18 Mohammad Tohidi Vahdat , Kumar Agrawal Varoon , Giovanni Pizzi

A likelihood-based reconstruction algorithm for arbitrary event topologies is introduced and, as an example, applied to the single-lepton decay mode of top-quark pair production. The algorithm comes with several options which further…

In many extensions of the Standard Model, including a broad class of left-right symmetric and Grand Unified theories, the light neutrino mass matrix is given by the left-right symmetric seesaw formula $M_\nu = f v_L - \frac{v^2}{v_R} Y_\nu…

高能物理 - 唯象学 · 物理学 2009-11-11 Pierre Hosteins , Stephane Lavignac , Carlos A. Savoy

A series of findings in machine learning (ML) and decay theory are captured while exploring the role of deformation and preformation factors in {\alpha} decay. We provide a novel and practical paradigm for developing physics-driven machine…

核理论 · 物理学 2025-04-08 Ruixiong Li , Jingyu Xiao , Hongfei Zhang , Nana Ma

We compute O(alpha_s^2) QCD corrections to the lepton invariant mass spectrum in the decay b --> u l nu_l, relevant for the determination of the CKM matrix element |V_{ub}|. Our method can also be used to evaluate moments of the lepton…

高能物理 - 唯象学 · 物理学 2010-11-23 Andrzej Czarnecki , Kirill Melnikov

We consider the problem of classifying data manifolds where each manifold represents invariances that are parameterized by continuous degrees of freedom. Conventional data augmentation methods rely upon sampling large numbers of training…

机器学习 · 计算机科学 2018-10-01 SueYeon Chung , Uri Cohen , Haim Sompolinsky , Daniel D. Lee

The semileptonic decays of polarised top quarks are analysed for a general chirality-conserving tbW vertex. We calculate double differential distributions for the charged lepton and the neutrino to order \alpha_s in the QCD coupling. We…

高能物理 - 唯象学 · 物理学 2009-11-10 Werner Bernreuther , Michael Fuecker , Yoshiaki Umeda

Using quasipotential approach, we have studied exclusive semileptonic decays of heavy mesons with the account of relativistic effects. Due to more complete relativistic description of the $s$ quark more precise expressions for semileptonic…

高能物理 - 唯象学 · 物理学 2016-09-01 R. N. Faustov , V. O. Galkin , A. Yu. Mishurov

Nonleptonic decays of charmed mesons into two pseudoscalar mesons or one pseudoscalar meson and one vector meson are studied on the basis of a generalized factorization method considering the resonance effects in the pole model for the…

高能物理 - 唯象学 · 物理学 2015-05-27 Fu-Sheng Yu , Xiao-Xia Wang , Cai-Dian Lü