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Related papers: HQET Flavor Currents Using Automated Lattice Pertu…

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One proposal to compute parton distributions from first principles is the large momentum effective theory (LaMET), which requires the Fourier transform of matrix elements computed non-perturbatively. Lattice quantum chromodynamics (QCD)…

Lightcone distribution amplitudes (LCDAs) within the framework of heavy quark effective theory (HQET) play a crucial role in the theoretical description of weak decays of heavy bottom mesons. However, the first-principle determination of…

High Energy Physics - Lattice · Physics 2025-04-04 Xue-Ying Han , Jun Hua , Cai-Dian Lü , Andreas Schäfer , Yushan Su , Wei Wang , Ji Xu , Yibo Yang , Jian-Hui Zhang , Qi-An Zhang , Shuai Zhao

Heavy-flavored emissions have been always considered as an excellent channel to test properties of Quantum chromodynamics (QCD) at present and future colliders. Among different regimes, in which heavy-flavor production can be investigated,…

High Energy Physics - Phenomenology · Physics 2021-10-26 Andrèe Dafne Bolognino , Francesco Giovanni Celiberto , Michael Fucilla , Dmitry Yu. Ivanov , Alessandro Papa

Heavy Neutral Leptons are naturally present in many well-motivated extensions of the Standard Model. If their mass is of few dozens of GeVs, they can be long-lived and lead to events with displaced vertices, giving rise to promising…

High Energy Physics - Phenomenology · Physics 2018-12-06 Asmaa Abada , Nicolás Bernal , Marta Losada , Xabier Marcano

Quark and lepton flavor physics presents us with a basic question: Can we understand the pattern of masses and mixings of the known quarks and leptons, and how do present and proposed measurements help to advance that goal? Topics discussed…

High Energy Physics - Phenomenology · Physics 2013-10-02 Jonathan L. Rosner

In this paper, we perform a comprehensive study of Lepton Flavor Violation (LFV) in semileptonic transitions in the framework of an Effective Field Theory with general flavor structure. We account for the Renormalization Group Equations…

High Energy Physics - Phenomenology · Physics 2024-07-12 I. Plakias , O. Sumensari

We review our perturbative techniques for improved heavy quark actions. A new procedure for computing improvement coefficients is suggested, where the continuum limit of a lattice-regularized theory provides the matching conditions.We also…

High Energy Physics - Lattice · Physics 2009-11-10 Matthew Nobes , Howard Trottier

Classification of jets as originating from light-flavor or heavy-flavor quarks is an important task for inferring the nature of particles produced in high-energy collisions. The large and variable dimensionality of the data provided by the…

High Energy Physics - Experiment · Physics 2016-12-07 Daniel Guest , Julian Collado , Pierre Baldi , Shih-Chieh Hsu , Gregor Urban , Daniel Whiteson

We examine the prospects for LHC discovery of SU(2)_L singlet vector-like quarks that obey Minimal Flavour Violation (MFV) and are consistent with lower energy phenomenology. We study models where the vector-like quarks have the same…

High Energy Physics - Phenomenology · Physics 2010-08-18 Jonathan M. Arnold , Bartosz Fornal , Michael Trott

A brief overview of the theory of open heavy flavor dynamics in QCD matter produced in high energy heavy-ion collisions is presented. First, we will summarise the phenomenological efforts to estimate the heavy quark diffusion coefficients…

Nuclear Theory · Physics 2023-08-03 Santosh K. Das

Light and heavy-light (b) hadrons are among the most interesting and among the most challenging quantities to calculate in lattice gauge theory. One would like to avoid discretization effects from very heavy quarks and to calculate chiral…

High Energy Physics - Lattice · Physics 2007-05-23 A. Ali Khan

Motivated by recently observed anomalies in the flavour sector, we analyse the potential of measurements of top quarks at the Large Hadron Collider (LHC) to provide complementary constraints on interactions that shape low-energy precision…

High Energy Physics - Phenomenology · Physics 2025-03-13 Oliver Atkinson , Christoph Englert , Matthew Kirk , Gilberto Tetlalmatzi-Xolocotzi

A high energy muon collider can provide new and complementary discovery potential to the LHC or future hadron colliders. Leptoquarks are a motivated class of exotic new physics models, with distinct production channels at hadron and lepton…

High Energy Physics - Phenomenology · Physics 2021-11-10 Pouya Asadi , Rodolfo Capdevilla , Cari Cesarotti , Samuel Homiller

Previously published CTEQ6 parton distributions adopt the conventional zero-mass parton scheme; these sets are most appropriate for use with massless hard-scattering matrix elements commonly found in most physics applications. For precision…

High Energy Physics - Phenomenology · Physics 2010-04-06 S. Kretzer , H. L. Lai , F. I. Olness , W. -K. Tung

We discuss the generalized eigenvalue problem for computing energies and matrix elements in lattice gauge theory, including effective theories such as HQET. It is analyzed how the extracted effective energies and matrix elements converge…

High Energy Physics - Lattice · Physics 2009-04-30 Benoit Blossier , Michele Della Morte , Georg von Hippel , Tereza Mendes , Rainer Sommer

We consider the framework of flavoured leptoquarks, in models with scalar or vector leptoquarks, and look for constraints to the parameter space of these models. Using primarily direct searches at the Large Hadron Collider (LHC) and…

High Energy Physics - Phenomenology · Physics 2024-03-01 Ivo de Medeiros Varzielas , Amartya Sengupta

We present a general discussion of collider processes with not-completely inclusive production of heavy flavors. We review the Perturbative Fragmentation Functions formalism as the appropriate tool for studying such processes and detail the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Alexander Mitov

We discuss some recent lattice results on a few selected hadronic quantities relevant for heavy flavour phenomenology and present some recent theoretical developments. We put the emphasis on the challenges, which have to be faced, on the…

High Energy Physics - Lattice · Physics 2011-08-19 Michele Della Morte

Heavy-light mesons, heavy quarkonium and doubly heavy baryons are briefly discussed. Effective field theories (EFTs) of QCD based on the heavy quark mass expansion 1/m_Q provide a unified framework to describe all three systems. They…

High Energy Physics - Phenomenology · Physics 2016-09-06 Joan Soto

Lattice calculations of heavy quark systems provide very good measures of the lattice spacing, a key element in recent determinations of the strong coupling constant using lattice methods. They also provide excellent testing grounds for…

High Energy Physics - Lattice · Physics 2010-11-01 Paul B. Mackenzie