Results 111 to 120 of about 3,527,338 (311)

Gluon fragmentation function in polarised $Λ$ hyperon production: The Method of Factorisation [PDF]

open access: yesarXiv, 1996
We discuss the polarised fragmentation functions of quarks and gluons in Perturbative Quantum Chromodynamics. The Altarelli-Parisi evolution equations governing these fragmentation functions are presented. We find that the first moment of the polarised gluon fragmentation function to order $\alpha_s$ is as important as that of the quark and anti-quark ...
arxiv  

The REGALE Library: A DDS Interoperability Layer for the HPC PowerStack

open access: yesJournal of Low Power Electronics and Applications
Large-scale computing clusters have been the basis of scientific progress for several decades and have now become a commodity fuelling the AI revolution.
Giacomo Madella   +5 more
doaj   +1 more source

Inclusive distributions near kinematic thresholds. [PDF]

open access: yes, 2006
The main challenge in computing inclusive cross sections and decay spectra in QCD is posed by kinematic thresholds. The threshold region is characterized by stringent phase–space constraints that are reflected in large perturbative corrections due to ...
Gardi, Einan
core   +1 more source

Observing the fragmentation of two expanding bullet types and a full metal-jacketed bullet with computed tomography—a forensic ballistics case study [PDF]

open access: hybrid, 2023
Petteri Oura   +6 more
openalex   +1 more source

Projecting Urbanization and Landscape Change at Large Scale Using the FUTURES Model

open access: yesLand, 2019
Increasing population and rural to urban migration are accelerating urbanization globally, permanently transforming natural systems over large extents.
Derek Van Berkel   +8 more
doaj   +1 more source

Fragmentation at height associated to Lévy processes [PDF]

open access: yesStochastic processes and their applications 117 (2007) 297-311, 2006
We consider the height process of a L\'{e}vy process with no negative jumps, and its associated continuous tree representation. Using tools developed by Duquesne and Le Gall, we construct a fragmentation process at height, which generalizes the fragmentation at height of stable trees given by Miermont.
arxiv  

The Formation and Fragmentation of Disks around Primordial Protostars

open access: yes, 2011
The very first stars to form in the Universe heralded an end to the cosmic dark ages and introduced new physical processes that shaped early cosmic evolution. Until now, it was thought that these stars lived short, solitary lives, with only one extremely
P. C. Clark   +6 more
core   +1 more source

Exploration of Sleep as a Specific Risk Factor for Poor Metabolic and Mental Health: A UK Biobank Study of 84,404 Participants

open access: yesNature and Science of Sleep, 2021
Gewei Zhu,1 Sophie Cassidy,2 Hugo Hiden,3 Simon Woodman,3 Michael Trenell,4 David A Gunn,5 Michael Catt,6 Mark Birch-Machin,1,6 Kirstie N Anderson7 1Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University ...
Zhu G   +8 more
doaj  

Daughter Fragmentation is Unlikely To Occur in Self-Gravitating Circumstellar Discs [PDF]

open access: yesarXiv, 2016
Circumstellar discs are thought to be self-gravitating at very early times. If the disc is relatively cool, extended and accreting sufficiently rapidly, it can fragment into bound objects of order a few Jupiter masses and upwards. Given that the fragment's initial angular momentum is non-zero, and it will continue to accrete angular momentum from the ...
arxiv  

Home - About - Disclaimer - Privacy