Results 81 to 90 of about 81,110 (210)

New physics in t-> b W decay at next-to-leading order in QCD

open access: yes, 2010
We consider contributions of non-standard tbW effective operators to the decay of an unpolarized top quark into a bottom quark and a W gauge boson at next-to-leading order in QCD.
Drobnak, Jure   +2 more
core   +1 more source

Viral entry mechanisms: the role of molecular simulation in unlocking a key step in viral infections

open access: yesFEBS Open Bio, Volume 15, Issue 2, Page 269-284, February 2025.
This article reviews how molecular simulations can help understand the complex process of viral membrane fusion, an essential step in viral infection. Simulations can not only complement experimental techniques but also provide a deeper understanding of how viral fusion proteins interact with host cells, helping to inform the development of next ...
Mariana Valério   +4 more
wiley   +1 more source

Five-flavour scheme predictions for $$t\bar{t}b\bar{b}$$ t t ¯ b b ¯ at next-to-leading order accuracy

open access: yesEuropean Physical Journal C: Particles and Fields
We compute top quark pair production in association with a bottom quark pair at the LHC within the five-flavour scheme, matched to a parton shower, employing the FxFx merging scheme for $$t\bar{t}+\text {jets}$$ t t ¯ + jets production with up to 2 jets ...
Rikkert Frederix, Tetiana Moskalets
doaj   +1 more source

Study of the Top-quark Pair Production in Association with a Bottom-quark Pair from Fast Simulations at the LHC

open access: yes, 2015
A large number of top quarks will be produced at the Large Hadron Collider (LHC) for Run II period. This will allow us to measure the rare processes from the top sector in great details.
Choi, Su Yong   +3 more
core   +1 more source

Correlation properties and respiratory frequency of ECG‐derived heart rate variability during multiple race‐pace running intervals in female and male long‐distance runners

open access: yesPhysiological Reports, Volume 13, Issue 3, February 2025.
Abstract Aim was to evaluate alterations of the non‐linear short‐term scaling exponent alpha1 of detrended fluctuation analysis (DFAa1) of heart rate (HR) variability (HRV) as a sensitive marker for assessing global physiological demands during multiple running intervals.
Thomas Gronwald   +4 more
wiley   +1 more source

Muscle fatigue, pedalling technique and the V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_{\mathrm{2}}}}}$ slow component during cycling

open access: yesExperimental Physiology, Volume 110, Issue 1, Page 115-126, 1 January 2025.
Abstract Above the first lactate threshold, the steady‐state V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_{\mathrm{2}}}}}$ is delayed or prevented due to the V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_{\mathrm{2}}}}}$ slow component (V̇O2SC${{\dot{V}}_{{{{\mathrm{O}}}_{\mathrm{2}}}{\mathrm{SC}}}}$). This phenomenon has been associated with muscle fatigue, but evidence for a
Keenan B. MacDougall   +3 more
wiley   +1 more source

Non-perturbative bottom PDF and its possible impact on new physics searches

open access: yes, 2015
Heavy quark parton distribution functions (PDFs) play an important role in several Standard Model and New Physics processes. Most PDF analyses rely on the assumption that the charm and bottom PDFs are generated perturbatively by gluon splitting and do ...
Kusina, A.
core   +4 more sources

Energy loss of heavy quarks in the isotropic collisional hot QCD medium

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The collisional energy loss of heavy partons (charm and bottom quarks) has been determined within the framework of semi-classical transport theory implying the Bhatnagar–Gross–Krook (BGK) collisional kernel.
M. Yousuf Jamal, Vinod Chandra
doaj   +1 more source

A study of the quenched bc mass spectrum at beta=6.2

open access: yes, 1997
We present an analysis of the mass spectrum of heavy quarkonia with non-degenerate quark masses. The heavier (bottom) valence quark is treated in a non-relativistic fashion and the other (charm) is a relativistic Wilson-like quark using the improved SW ...
A.J. Lidsey   +10 more
core   +1 more source

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