Zobrazeno 1 - 10
of 18 878
pro vyhledávání: '"Craig, D. A."'
A light-front holographic model is used to illustrate an algebraic scheme for constructing a representation of a hadron's zero-skewness generalised parton distribution (GPD) from its valence-quark distribution function (DF) and electromagnetic form f
Externí odkaz:
http://arxiv.org/abs/2410.13068
The details of the dynamo process that is responsible for driving the solar magnetic activity cycle are still not fully understood. In particular, whilst differential rotation provides a plausible mechanism for the regeneration of the toroidal (azimu
Externí odkaz:
http://arxiv.org/abs/2410.08400
Autor:
Yu, Yang, Roberts, Craig D.
Parton distribution functions (DFs) have long been recognised as key measures of hadron structure. Today, theoretical prediction of such DFs is becoming possible using diverse methods for continuum and lattice analyses of strong interaction (QCD) mat
Externí odkaz:
http://arxiv.org/abs/2410.03966
A symmetry preserving treatment of a vector $\otimes$ vector contact interaction (SCI) is used as the basis for calculations of the two pion transverse momentum dependent parton distribution functions (TMDs); namely, that for unpolarised valence degr
Externí odkaz:
http://arxiv.org/abs/2409.11568
Autor:
Albert, Christopher G., Beidler, Craig D., Kapper, Gernot, Kasilov, Sergei V., Kernbichler, Winfried
Bootstrap current in stellarators can be presented as a sum of a collisionless value given by the Shaing-Callen asymptotic formula and an off-set current, which non-trivially depends on plasma collisionality and radial electric field. Using NEO-2 mod
Externí odkaz:
http://arxiv.org/abs/2407.21599
Autor:
Goodman, Alan G., Xanthopoulos, Pavlos, Plunk, Gabriel G., Smith, Håkan, Nührenberg, Carolin, Beidler, Craig D., Henneberg, Sophia A., Roberg-Clark, Gareth, Drevlak, Michael, Helander, Per
The stellarator is a type of fusion energy device that - if properly designed - could provide clean, safe, and abundant energy to the grid. To generate this energy, a stellarator must keep a hot mixture of charged particles (known as a plasma) suffic
Externí odkaz:
http://arxiv.org/abs/2405.19860
A reaction model for $\gamma + p \to J/\psi + p$ photoproduction, which exposes the $c \bar c$ content of the photon in making the transition $\gamma\to c\bar c + \mathbb P \to J/\psi$ and couples the intermediate $c \bar c$ system to the proton's va
Externí odkaz:
http://arxiv.org/abs/2405.17675
We draw attention to an interesting possibility in the design and operation of stellarator fusion reactors, which has hitherto been considered unrealistic under burning-plasma conditions. Thanks to recent advances in stellarator optimisation theory,
Externí odkaz:
http://arxiv.org/abs/2405.07085
In quantum field theory, the vacuum is widely considered to be a complex medium populated with virtual particle + antiparticle pairs. To an observer experiencing uniform acceleration, it is generally held that these virtual particles become real, app
Externí odkaz:
http://arxiv.org/abs/2405.06002
Using a symmetry-preserving truncation of the quantum field equations describing hadron properties, parameter-free predictions are delivered for pion and kaon elastic electromagnetic form factors, $F_{P=\pi,K}$, thereby unifying them with kindred res
Externí odkaz:
http://arxiv.org/abs/2405.04681