Results 31 to 40 of about 10,949 (187)

Collider sensitivity to SMEFT heavy-quark operators at one-loop in top-quark processes

open access: yesJournal of High Energy Physics
We study the effects of four-heavy-quark operators in the production of top quarks in the framework of the Standard Model Effective Field Theory (SMEFT) at the LHC. In particular, we compute for the first time the total contribution of the four-top-quark
C. Degrande, R. Rosenfeld, A. Vasquez
doaj   +1 more source

Search for W′ bosons decaying to a top and a bottom quark at s=13TeV in the hadronic final state

open access: yesPhysics Letters B, 2021
A search is performed for W′ bosons decaying to a top and a bottom quark in the all-hadronic final state, in proton-proton collisions at a center-of-mass energy of 13TeV.
A.M. Sirunyan   +2332 more
doaj   +1 more source

Combined effects of normobaric hypoxia and cold on respiratory system responses to high‐intensity exercise

open access: yesExperimental Physiology, EarlyView.
Abstract Cold temperatures (<−15°C) increase exercise‐induced bronchoconstriction (EIB), while hypoxic‐induced hyperventilation exacerbates respiratory muscle fatigue for a given exercising task. This study aimed to determine the individual and combined effects of cold and normobaric hypoxia on the respiratory system responses to high‐intensity ...
Alexa Callovini   +7 more
wiley   +1 more source

Commuting by bicycle (vs. by car) is associated with improved aerobic power, microvascular function and diminished CO2 output in the atmosphere

open access: yesExperimental Physiology, EarlyView.
Abstract The study investigated whether bicycle compared with car commuting, over relatively small distances, has positive effects on physiological variables, cardiometabolic fitness and CO2 output in the atmosphere. Bike Commuters (11 M, 15 F; age [median value (interquartile range)] 51.5 (38.3–56.8) years; body mass index [BMI] 22.8 (21.0–24.1) kg m ...
Caterina Ursella   +11 more
wiley   +1 more source

Persistence of fatigue in the absence of pathophysiological mechanisms in some patients more than 2 years after the original SARS‐CoV‐2 infection

open access: yesExperimental Physiology, EarlyView.
Abstract Following an acute infection with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), a substantial percentage of patients report the persistence of debilitating symptoms, often grouped in a syndrome termed ‘long COVID’. We sought to identify potential pathophysiological mechanisms responsible for the persistence, in some long COVID ...
Giovanni Baldassarre   +10 more
wiley   +1 more source

Precision Measurements of Top Quark Production with the ATLAS Detector

open access: yesEPJ Web of Conferences, 2017
The top quark is the heaviest known fundamental particle. It is the only quark that decays before it hadronises which gives us the unique opportunity to probe the properties of bare quarks and to test perturbative QCD.
Stolte Philipp
doaj   +1 more source

Recent results on top quark mass and properties and rare/anomalous top quarks interactions in CMS

open access: yesSciPost Physics Proceedings, 2022
The amount of data collected by the CMS experiment at the CERN LHC in the second data taking period provides the possibility to study absolute and differential cross sections of top quark interaction processes with high precision.
Sebastian Wuchterl
doaj   +1 more source

Arterial–venous differences of brain‐derived neurotrophic factor isoforms across the brain and muscle after exercise at different intensities

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Exercise‐induced increases in forearm venous plasma and serum brain‐derived neurotrophic factor (BDNF) are often assumed to be indicative of release from the brain. Sixteen healthy and physically fit adults (20–40 years old) were recruited to investigate whether exercise‐induced changes in forearm venous mature BDNF (mBDNF) and ...
Olga Tarassova   +10 more
wiley   +1 more source

Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark

open access: yesPhysics Letters B
The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at s=13 TeV delivered by the Large Hadron Collider ...
G. Aad   +2929 more
doaj   +1 more source

Top quark mass studies with t t ¯ j $$ t\overline{t}j $$ at the LHC

open access: yesJournal of High Energy Physics, 2018
A precise measurement of the top quark mass, a fundamental parameter of the Standard Model, is among the most important goals of top quark studies at the Large Hadron Collider.
G. Bevilacqua   +4 more
doaj   +1 more source

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