Advertisement

Topics

Nucleon Matrix Elements of the Antisymmetric Quark Tensor.

08:00 EDT 29th March 2019 | BioPortfolio

Summary of "Nucleon Matrix Elements of the Antisymmetric Quark Tensor."

If physics beyond the standard model enters well above the electroweak scale, its low-energy effects are described by standard model effective field theory. Already, at dimension 6, many operators involve the antisymmetric quark tensor q[over ¯]σ^{μν}q, whose matrix elements are difficult to constrain from experiment, Ward identities, or low-energy theorems, in contrast to the corresponding vector and axial-vector or even scalar and pseudoscalar currents. However, with normalizations determined from lattice QCD, analyticity and unitarity often allow one to predict the momentum dependence in a large kinematic range. Starting from recent results in the meson sector, we extend this method to the nucleon case and, in combination with pole dominance, provide a comprehensive assessment of the current status of the nucleon form factors of the quark tensor.

Affiliation

Journal Details

This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 122001

Links

DeepDyve research library

PubMed Articles [5375 Associated PubMed Articles listed on BioPortfolio]

Gluon Quasi-Parton-Distribution Functions from Lattice QCD.

We present the first attempt to access the x dependence of the gluon unpolarized parton-distribution function (PDF), based on lattice simulations using the large-momentum effective theory approach. Th...

Donor-acceptor symmetric and antisymmetric tunneling matrix elements: a pathway model investigation of protein electron transfer.

In protein electron transfer reaction rate calculations, the electronic Hamiltonian is apportioned into donor-acceptor (D-A) and protein bridge subspaces, and a two-state system is defined for the D-A...

The Spin Structure of the Nucleon.

We review the present understanding of the spin structure of protons and neutrons, the fundamental building blocks of nuclei collectively known as nucleons. The field of nucleon spin provide...

The Sea of Quarks and Antiquarks in the Nucleon.

The quark and gluon structure of the proton has been under intense experimental and theoretical investigation for five decades. Even for the distributions of the well-studied valence quarks, chal...

Light-Cone Parton Distribution Functions from Lattice QCD.

We extract parton distribution functions (PDFs) of the nucleon from lattice QCD using an ensemble of gauge field configurations simulated with light quark masses fixed to their physical values. Theore...

Clinical Trials [950 Associated Clinical Trials listed on BioPortfolio]

The ICALIC International Multicentric Study

This study will evaluate the ease of use of the new calorimeter (Quark RMR 2.0 (COSMED, Italy)) in intensive care unit (ICU) patients compared to currently used calorimeters (i.e. Quark RM...

Clinical Evaluation of Sectional Matrix Versus Circumferential Matrix for Reproduction of Proximal Contact

The aim of this study is to evaluate the effects of different matricing techniques either sectional matrix or circumferential matrix on reproduction of optimum proximal contacts and contou...

Diffusion Tensor Imaging in Predicting Development of Chemotherapy Induced Peripheral Neuropathy in Patients With Breast Cancer (CIPN)

This pilot early phase I trial studies how well diffusion tensor imaging works in predicting development of chemotherapy induced peripheral neuropathy in patients with breast cancer. Diffu...

Fentanyl Matrix in Lung Cancer Pain

The purpose of this study is to evaluate the usefulness of fentanyl matrix by assessing patients' satisfaction when administrating fentanyl matrix, a background pain treatment, and a break...

Study Assessing the Safety and Performance of Smart Matrix®

Smart Matrix is a sterile, single layer dermal replacement scaffold. The scaffold consists of a porous matrix of cross-linked human fibrin plus alginate that has been designed and optimise...

Medical and Biotech [MESH] Definitions

Discrete segments of DNA which can excise and reintegrate to another site in the genome. Most are inactive, i.e., have not been found to exist outside the integrated state. DNA transposable elements include bacterial IS (insertion sequence) elements, Tn elements, the maize controlling elements Ac and Ds, Drosophila P, gypsy, and pogo elements, the human Tigger elements and the Tc and mariner elements which are found throughout the animal kingdom.

Copies of transposable elements interspersed throughout the genome, some of which are still active and often referred to as "jumping genes". There are two classes of interspersed repetitive elements. Class I elements (or RETROELEMENTS - such as retrotransposons, retroviruses, LONG INTERSPERSED NUCLEOTIDE ELEMENTS and SHORT INTERSPERSED NUCLEOTIDE ELEMENTS) transpose via reverse transcription of an RNA intermediate. Class II elements (or DNA TRANSPOSABLE ELEMENTS - such as transposons, Tn elements, insertion sequence elements and mobile gene cassettes of bacterial integrons) transpose directly from one site in the DNA to another.

A secreted matrix metalloproteinase that is the predominant proteolytic activity in the enamel matrix. The enzyme has a high specificity for dental enamel matrix protein AMELOGENIN.

A transmembrane domain-containing matrix metalloproteinase. It is synthesized as an inactive zymogen that is activated by the proteolytic action of PROPROTEIN CONVERTASES. Matrix metalloproteinase 16 plays a direct role in the cleavage of proteins in the pericellular environment. In addition it can function indirectly by enzymatically activating the proprotein form of other MATRIX METALLOPROTEINASES such as the zymogen of MATRIX METALLOPROTEINASE 2.

A secreted matrix metalloproteinase that is believed to play a role in EXTRACELLULAR MATRIX remodeling and cell fate determination during normal and pathological processes. Matrix metalloproteinase 11 was originally isolated in primary BREAST NEOPLASMS and may be involved in the process of tumorigenesis.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article