Results 51 to 60 of about 69,721 (194)
Charm in deep-inelastic scattering [PDF]
We show how to extend systematically the FONLL scheme for inclusion of heavy quark mass effects in DIS to account for the possible effects of an intrinsic charm component in the nucleon. We show that when there is no intrinsic charm, FONLL is equivalent to S-ACOT to any order in perturbation theory, while when an intrinsic charm component is included ...
Ball, RD, Bonvini, M, Rottoli, L
openaire +5 more sources
The cross section for deep inelastic lepton-proton scattering (DIS) ℓp→ℓ′X includes a diffractive deep inelastic (DDIS) contribution ℓp→ℓ′p′X, in which the proton remains intact with a large longitudinal momentum fraction xF greater than 0.9 and small ...
Stanley J. Brodsky +2 more
doaj +1 more source
New analysis concerning the strange quark polarization puzzle
The fact that analyses of semi-inclusive deep inelastic scattering suggest that the polarized strange quark density $\Delta s(x) + \Delta \bar{s}(x)$ is positive in the measured region of Bjorken x, whereas all analyses of inclusive deep inelastic ...
Leader, Elliot +2 more
core +1 more source
Lambda and Lambda-bar Polarization in Lepton Induced Processes
The study of the longitudinal polarization of Lambda and Lambda-bar hyperons produced in polarized deep inelastic scattering, neutrino scattering, and in Z0 decays allows to access the spin dynamics of the quark fragmentation process.
Bravar, A. +2 more
core +1 more source
CHARM IN DEEP INELASTIC SCATTERING [PDF]
We outline the existing descriptions of the charm component of the deep inelastic proton structure function F2. We discuss recent approaches to include charm mass effects in the parton evolution equations and the coefficient functions.
Collins, J. C. +2 more
openaire +2 more sources
Neutrino telescopes as QCD microscopes
We present state-of-the-art predictions for the ultra-high energy (UHE) neutrino-nucleus cross-sections in charged- and neutral-current scattering. The calculation is performed in the framework of collinear factorisation at NNLO, extended to include the ...
Valerio Bertone, Rhorry Gauld, Juan Rojo
doaj +1 more source
Impact of large-x resummation on parton distribution functions [PDF]
We investigate the effect of large-x resummation on parton distributions by performing a fit of Deep Inelastic Scattering data from the NuTeV, BCDMS and NMC collaborations, using NLO and NLL soft-resummed coefficient functions. Our results show that soft
Corcella, Gennaro, Magnea, Lorenzo
core +2 more sources
Spin-Directed Momentum Transfers in SIDIS Baryon Production
The measurement of transverse single-spin asymmetries for baryon production in the target fragmentation region of semi-inclusive deep-inelastic scattering (SIDIS), can produce important insight into those nonperturbative aspects of QCD directly ...
Sivers Dennis
doaj +1 more source
Limits on electroweak instanton-induced processes with multiple boson production
Recently, the CMS collaboration has reported their search for electroweak instanton-like processes with anomalous B + L violation assuming multi-fermion but zero-boson final states. On the other hand, many theoretical studies suggest that anomalous B + L
Andreas Ringwald +2 more
doaj +1 more source

