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Parity violating effects for low energy elastic neutron deuteron scattering are calculated for DDH and EFT-type of weak potentials in a Distorted Wave Born Approximation, using realistic hadronic strong interaction wave functions, obtained…

核理论 · 物理学 2011-02-01 Young-Ho Song , Rimantas Lazauskas , Vladimir Gudkov

The study of parity-violation in semi-leptonic processes has yielded important insights into the structure of the Standard Model and the substructure of the nucleon. I discuss the future of semi-leptonic parity-violation and the role it…

高能物理 - 唯象学 · 物理学 2010-11-03 M. J. Ramsey-Musolf

We derive the dimension-8 standard-model effective theory (SMEFT) contact terms relevant for vector-pair production at the LHC and lepton colliders. We first list the relevant dimension-8 massless SMEFT amplitudes, and then obtain the…

高能物理 - 唯象学 · 物理学 2025-05-06 Jared M Goldberg , Hongkai Liu , Yael Shadmi

The ongoing Effective Field Theory (EFT) program at the LHC and elsewhere is motivated by streamlining the connection between experimental data and UV-complete scenarios of heavy new physics beyond the Standard Model (BSM). This connection…

高能物理 - 唯象学 · 物理学 2024-05-24 Jaco ter Hoeve , Giacomo Magni , Juan Rojo , Alejo N. Rossia , Eleni Vryonidou

The critical analysis of the new experimental data obtained by the ATLAS Collaboration group at 13 TeV is presented and the problem of the tension between data of the ATLAS and TOTEM Collaboration is considered. The analysis of new effects…

高能物理 - 唯象学 · 物理学 2023-03-07 O. V. Selyugin

Partial Least Squares (PLS) is a widely used method for data integration, designed to extract latent components shared across paired high-dimensional datasets. Despite decades of practical success, a precise theoretical understanding of its…

机器学习 · 统计学 2025-12-18 Victor Léger , Florent Chatelain

Moments of the leptonic angular distribution in the Drell-Yan process have recently been shown to be sensitive probes of a specific class of dimension-8, four-fermion operators in the Standard Model Effective Field Theory, involving a pair…

高能物理 - 唯象学 · 物理学 2022-10-19 Xu Li , Ken Mimasu , Kimiko Yamashita , Chengjie Yang , Cen Zhang , Shuang-Yong Zhou

In recent times, SMEFT, along with a superlative repertoire of theoretical and computational tools, has emerged as an efficacious platform to test the viability of proposed BSM scenarios. With symmetry as the backbone, higher mass…

高能物理 - 唯象学 · 物理学 2022-09-07 Wrishik Naskar , Suraj Prakash , Shakeel Ur Rahaman

We present a first principles-quality potential energy surface (PES) describing the inter-atomic forces for hydrogen atoms interacting with free-standing graphene. The PES is a high-dimensional neural network potential that has been…

Successful realization of polarized Drell-Yan physics program is one of the main goals of the second stage of the COMPASS experiment. Drell-Yan measurements with high energy (190 GeV/c) pion beam and transversely polarized NH3 target have…

高能物理 - 实验 · 物理学 2016-03-23 Bakur Parsamyan

Charged scalars appear in many motivated extensions beyond the Standard Model. We analyze the constraints on charged scalar pair production via the Drell-Yan process at the Large Hadron Collider and interpret them in terms of weak isospin…

高能物理 - 唯象学 · 物理学 2025-01-20 Avik Banerjee , Dipankar Das , Samadrita Mukherjee , Shreya Pandey

We explore the constraints which can be derived on Wilson coefficients in the Standard Model Effective Field Theory from dilepton production, notably including the constraints on operators which do not lead to cross sections growing with…

高能物理 - 唯象学 · 物理学 2021-03-31 Alyssa Horne , Jordan Pittman , Marcus Snedeker , William Shepherd , Joel W. Walker

Progress in machine learning has facilitated the development of potentials that offer both the accuracy of first-principles techniques and vast increases in the speed of evaluation. Recently,"$\Delta$-machine learning" has been used to…

In this paper we present the partial wave unitarity bound in the parameter space of dimension-5 and dimension-6 effective operators that arise in a compositeness scenario. These are routinely used in experimental searches at the LHC to…

高能物理 - 唯象学 · 物理学 2019-10-25 S. Biondini , R. Leonardi , O. Panella , M. Presilla

In this work, we present novel Machine Learning and Differentiable Programming enhanced calibration techniques used to improve the energy resolution of the Silicon Drift Detectors (SDDs) of the VIP-2 underground experiment at the Gran Sasso…

In this talk, a Green's basis and a new physical basis for dimension-seven (dim-7) operators in the Standard Model effective field theory (SMEFT) are proposed. The reduction relations between those two bases are also presented, where some…

高能物理 - 唯象学 · 物理学 2024-09-05 Di Zhang

The Sivers distributions recently extracted from semi-inclusive deep inelastic scattering data [1] are used to compute estimates for Sivers asymmetries in Drell-Yan processes which are being planned at several facilities (RHIC, COMPASS,…

高能物理 - 唯象学 · 物理学 2009-03-24 M. Anselmino , M. Boglione , U. D'Alesio , S. Melis , F. Murgia , A. Prokudin

We make theoretical predictions for the recently introduced variable \phi* corresponding to the azimuthal angle between leptons produced in the Drell-Yan process at the LHC. As a consequence of this work we are also able to generate results…

高能物理 - 唯象学 · 物理学 2012-08-24 Andrea Banfi , Mrinal Dasgupta , Simone Marzani , Lee Tomlinson

We study the phenomenology of Drell-Yan processes at the Large Hadron Collider for the case of both the neutral and charged current channels within a recently proposed 4-Dimensional formulation of the Minimal Composite Higgs Model. We…

高能物理 - 唯象学 · 物理学 2013-05-30 Daniele Barducci , Alexander Belyaev , Stefania De Curtis , Stefano Moretti , Giovanni Marco Pruna

We present a comprehensive reassessment of perturbative unitarity bounds in the dimension-six Standard Model Effective Field Theory, exploiting a new formalism based on spinor-helicity techniques to derive partial-wave unitarity bounds for…

高能物理 - 唯象学 · 物理学 2026-03-05 Luigi C. Bresciani , Paride Paradisi , Andrea Sainaghi