Results 151 to 160 of about 38,607,398 (267)

QCD θ-vacua from the chiral limit to the quenched limit

Nuclear Physics B, 2014
We investigate the dependence of the QCD vacuum structure on the θ-angle and quark mass, using the Di-Vecchia–Veneziano model. Although the Di-Vecchia–Veneziano model is a chiral effective model, it contains the topological properties of the pure Yang ...
Kazuya Mameda
doaj   +1 more source

On the Naturalistic Grounds of Grounding

Ratio, Volume 39, Issue 3, Page 126-134, September 2026.
ABSTRACT This paper examines whether grounding can be naturalized. We adopt a tripartite framework—Ocat (scientific catalogue of existents), Otyp (ontological types), and metaphysics (natures/modal profiles)—and show that classifying as such the relata of putative grounding claims forces a dilemma.
Raoni Arroyo, Jonas R. Becker Arenhart
wiley   +1 more source

Off-Shell Effects for Single Top-Quark Production Processes at Hadron Colliders [PDF]

, 2011
We present a calculation of s- and t-channel single top-quark production and decay at next-to-leading order in QCD for the Tevatron and for the LHC. The calculation includes the off-shell effects of the intermediate top-quark and the non-factorisable ...
MELLOR, PAUL
core  

New Aspects of Flavour Model Building in Supersymmetric Grand Unification [PDF]

, 2010
We derive predictions for Yukawa coupling ratios within Grand Unified Theories generated from operators with mass dimension four and five. These relations are a characteristic property of unified flavour models and can reduce the large number of free ...
Spinrath, Martin
core   +1 more source

Exercise hyperpnoea: Unravelling layers of regulation

The Journal of Physiology, Volume 604, Issue 17, Page 7490-7509, 1 September 2026.
Abstract figure legend Intensity‐dependent changes in hypercapnic ventilatory response (HCVR) and feedforward gain (GEX) during exercise hyperpnoea below the respiratory compensation point (RCP). Participants (N = 20; 10 females) completed a 44 min step‐incremental cycling protocol in the moderate (below gas exchange threshold (GET)) and heavy ...
Nasimi A. Guluzade, Gordon S. Mitchell, Daniel A. Keir   +2 more
wiley   +1 more source

HADRONIC BOUND STATES BEYOND THE QUARK MODEL

, 2023
openLe collaborazioni Babar e Belle hanno osservato per prime alcuni adroni non previsti dal modello a quark. Successive misure effettuate ai collisori adronici Tevatron e LHC hanno confermato queste osservazioni, arricchendo inoltre lo spettro di molti ...
ROMANATO, LEONARDO
core  

Equation of state of quark-gluon plasma using a simple phenomenological model

EPJ Web of Conferences, 2018
The equation of state (EoS) of quark-gluon plasma (QGP) using a phenomenological model is studied in which finite value of quark mass is modified as effective mass.
Kumar Yogesh
doaj   +1 more source

Quark model

, 2008
This biennial Review summarizes much of particle physics. Using data from previous editions, plus 2778 new measurements from 645 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons. We also summarize searches for hypothetical particles such as Higgs bosons, heavy neutrinos, and supersymmetric
Amsler, C, DeGrand, T, Krusche, B
openaire   +2 more sources

The Spectrum and Decays of Scalar Mesons in the Light-Front Quark Model

, 2008
We use the light-front quark model to investigate the structure of the scalar mesons, mainly focusing on the three heavy isoscalar states f0(1370), f0(1500), and f0(1710).
DeWitt, Martin Alan
core  

Behaviour of Quark and Strange Quark Matter for Higher Dimensional Bianchi Type -I Universe in f(R,T) Gravity

East European Journal of Physics
This research paper delves into a thorough examination of the behaviour exhibited by higher dimensional Bianchi Type-I universes, incorporating the presence of quark and strange quark matter within the framework of f(R,T) gravity.
S. Thakre, R.V. Mapari, V.A. Thakare
doaj   +1 more source