Results 41 to 50 of about 4,505 (197)

Exercise limitations in amyloid cardiomyopathy assessed by cardiopulmonary exercise testing—A multicentre study

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1326-1335, April 2025.
Abstract Aims Amyloid cardiomyopathy is caused by the deposition of light chain (AL) or transthyretin amyloid (ATTR) fibrils, that leads to a restrictive cardiomyopathy, often resulting in heart failure (HF) with preserved or reduced ejection fraction.
Robin Willixhofer   +25 more
wiley   +1 more source

An Experimental Review on Elliptic Flow of Strange and Multistrange Hadrons in Relativistic Heavy Ion Collisions

open access: yesAdvances in High Energy Physics, 2016
Strange hadrons, especially multistrange hadrons, are good probes for the early partonic stage of heavy ion collisions due to their small hadronic cross sections.
Shusu Shi
doaj   +1 more source

Quark coalescence with quark number conservation and the effect on quark–hadron scaling [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2011
We develop a new formulation of the quark coalescence model by including the quark number conservation in order to describe the hadronization of the bulk of the quark-gluon plasma. The scalings between hadron and quark phase space distributions are shown to depend on the transverse momentum.
openaire   +2 more sources

Different demographic drivers of recovery in two adjacent populations of a long‐lived bird of prey

open access: yesOikos, EarlyView.
Understanding the demographic mechanisms underlying population decline or recovery is critical for conservation and management, yet similar population trends may arise from very different underlying processes. Comparing populations of vulnerable species groups like long‐lived raptors in different environments can reveal how species respond to change ...
Carina Nebel   +4 more
wiley   +1 more source

Heavy and light quarks in the instanton vacuum

open access: yesEPJ Web of Conferences, 2012
Assuming the gluon field is well approximated by instanton configurations we derive a light quarks determinant and calculate its contribution to the specific heavy quarks correlators – namely, the heavy quark propagator and heavy quark-aniquark ...
Musakhanov M.
doaj   +1 more source

Constraints on the quark mixing matrix with vector-like quarks

open access: yesNuclear Physics B, 2020
While a chiral fourth generation of quarks is almost ruled out from the data on Higgs boson production and decay at the Large Hadron Collider, vector-like quarks are still a feasible option to extend the fermionic sector of the Standard Model.
Drona Vatsyayan, Anirban Kundu
doaj   +1 more source

Local spin alignment of vector mesons in relativistic heavy-ion collisions

open access: yesPhysics Letters B, 2021
We investigate the spin alignment of vector mesons arising from locally polarized quarks and anti-quarks (local spin alignment) in heavy-ion collisions.
Xiao-Liang Xia   +3 more
doaj   +1 more source

Upgrade des CMS‐Detektors für die Hochratenphase des LHC: Die Runderneuerung von CMS

open access: yesPhysik in unserer Zeit, EarlyView.
Ab 2030 wird der LHC in der Hochratenphase laufen. Die erheblich gesteigerte Proton‐Proton‐Kollisionsrate erfordert ein grundlegendes Update der beiden großen Detektoren ATLAS und CMS, dessen Runderneuerung hier vorgestellt wird. Zusammenfassung Ab 2030 soll der Large Hadron Collider (LHC) am CERN in der Hochratenphase (High Luminosity, High‐Lumi ...
Frank Hartmann
wiley   +1 more source

Search for vector-like T and B quark pairs in final states with leptons at s=13 $$ \sqrt{s}=13 $$ TeV

open access: yesJournal of High Energy Physics, 2018
A search is presented for pair production of heavy vector-like T and B quarks in proton-proton collisions at s=13 $$ \sqrt{s}=13 $$ TeV. The data sample corresponds to an integrated luminosity of 35.9 fb−1, collected with the CMS detector at the CERN LHC
The CMS collaboration   +2291 more
doaj   +1 more source

Dark Matter Searches with Top Quarks

open access: yesUniverse, 2022
Collider signatures with top quarks provide sensitive probes of dark matter (DM) production at the Large Hadron Collider (LHC). In this article, we review the results of DM searches in final states with top quarks conducted by the ATLAS and CMS ...
J. Katharina Behr, Alexander Grohsjean
doaj   +1 more source

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