Results 101 to 110 of about 225,392 (278)

Radioactivity of quark nuggets

open access: yesJournal of High Energy Physics
Quark nuggets Q Z A $$ {}_{\textrm{Z}}{}^{\textrm{A}}\textrm{Q} $$ , as Fermionic non-topological solitons, could have their mass per baryon smaller than ordinary nuclei and behave as exotic nuclei with different relations of atomic number and atomic ...
Yang Bai, Mrunal Korwar
doaj   +1 more source

Extended Quark Potential Model from Random Phase Approximation

open access: yes, 2002
The quark potential model is extended to include the sea quark excitation using the random phase approximation (RPA). The effective quark interaction preserves the important Quantum Chromodynamics (QCD) properties -- chiral symmetry and confinement ...
Chen, Xiaolin   +3 more
core   +1 more source

Acute Effect of Transcutaneous Auricular Vagus Nerve Stimulation in Two Different Locations on Blood Pressure and Cardiac Autonomic Modulation in Healthy and Hypertensive Individuals: Pilot Study of a Randomized Crossover Clinical Trial

open access: yesPhysiotherapy Research International, Volume 31, Issue 2, April 2026.
ABSTRACT Background and PurposeTranscutaneous auricular vagus nerve stimulation (taVNS) has emerged as a promising noninvasive strategy to modulate autonomic function and reduce blood pressure (BP). However, whether the stimulation site influences acute cardiovascular responses remains unclear. Objective To compare the acute effects of taVNS applied to
Paulo Henrique Leite Souza   +8 more
wiley   +1 more source

Top quark measurements in the CMS experiment

open access: yesEPJ Web of Conferences, 2018
Experimental results on top-quark physics obtained at the CMS experiment are reported based on the data recorded at centre-of-mass energy up to 13 TeV. Inclusive and differential cross sections for both top-quark pair and single top-quark production are ...
Lista Luca
doaj   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states

open access: yesJournal of High Energy Physics, 2017
A search is performed for electroweak production of a vector-like top quark partner T of charge 2/3 in association with a standard model top or bottom quark, using 2.3 fb−1 of proton-proton collision data at s = 13 $$ \sqrt{s}=13 $$ TeV collected by the ...
The CMS collaboration   +2246 more
doaj   +1 more source

Plate tectonics in the microscopy realm: Molecular insights into morphological variability of Peridinium willei (Peridiniales, Dinophyceae)

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract Freshwater Peridinium willei (Peridiniaceae) is globally distributed, but reports linking its morphologies with DNA sequence data remain scarce. The taxonomy of the species, and its infraspecific taxa, remain ambiguous due to the lack of DNA sequence data for the original and type material.
Arwin Ahmadpur   +17 more
wiley   +1 more source

Molecular components in D*s0(2317) and Ds1(2460) mesons

open access: yesEPJ Web of Conferences, 2016
Different experiments have confirmed that the D*s0(2317) and Ds1(2460) mesons are very narrow states located, respectively, below the DK and D*K thresholds. This is markedly in contrast with the expectations of naive quark models and heavy quark symmetry.
Ortega Pablo G.   +3 more
doaj   +1 more source

Mathematical Modelling and Intuition in Microbiology: A Perspective

open access: yesEnvironmental Microbiology, Volume 28, Issue 4, April 2026.
Mathematical modelling in microbiology converts verbal reasoning into internally consistent hypotheses that can provide testable predictions, infer hidden parameters, and generate transferable intuition. By selecting an appropriate level of description, researchers can connect data to explanatory principles.
Jamie A. Lopez, Amir Erez
wiley   +1 more source

Nucleon quark distributions in a covariant quark-diquark model

open access: yes, 2005
Spin-dependent and spin-independent quark light-cone momentum distributions and structure functions are calculated for the nucleon. We utilize a modified Nambu-Jona-Lasinio model in which confinement is simulated by eliminating unphysical thresholds for ...
A.W. Thomas   +41 more
core   +1 more source

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