output
19922026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations

Showing 2002 · hep-phShow all

8 papers · 2 filters

hep-ph2002★ 14 cited

Noncommutative QED and the Lifetimes of Ortho and Para Positronium

Mauro Caravati, Alberto Devoto, Wayne W. Repko

We examine the implications of including corrections associated with the noncommutative extension of quantum electrodynamics - NCQED - to the decays of the ortho and para positroni…

hep-ph2002★ 21 cited

Super-Kamiokande hep neutrino best fit: a possible signal of nonmaxwellian solar plasma

Massimo Coraddu, Marcello Lissia, Giuseppe Mezzorani +1

The Super-Kamiokande best global fit, which includes data from SNO, Gallium and Chlorine experiments, results in a hep neutrino contribution to the signals that, even after oscilla…

hep-ph2002★ 1 cited

Cross sections and single spin asymmetries in hadronic collisions with intrinsic transverse momentum effects

U. D'Alesio, F. Murgia

The role of intrinsic transverse momentum both in unpolarized and polarized processes is discussed. We consider inclusive cross sections for pion production in hadronic collisions…

hep-ph2002★ 1 cited

Single spin asymmetries, unpolarized cross sections and the role of partonic transverse momentum

U. D'Alesio, F. Murgia

Partonic intrinsic transverse momentum can be essential for the explanation of large single spin asymmetries in hadronic reactions in the framework of perturbative QCD. The status…

hep-ph2002★ 64 cited

Transverse single spin asymmetries in Drell-Yan processes

M. Anselmino, U. D'Alesio, F. Murgia

Recently, it has been shown, contrary to previous beliefs, that the k_T distribution of quarks in a transversely polarized proton can be asymmetric. This ``Sivers effect'' had alre…

hep-ph2002

Ultra high energy photon showers in magnetic field:angular distribution of produced particles

Massimo Coraddu, Marcello Lissia, Giuseppe Mezzorani

Ultra high energy (UHE) photons can initiate electromagnetic showers in magnetic field. We analyze the two processes that determine the development of the shower, pair cr…

hep-ph2002★ 19 cited

High-energy neutrino conversion into electron-W pair in magnetic field and its contribution to neutrino absorption

Andrea Erdas, Marcello Lissia

We calculate the conversion rate of high-energy neutrinos propagating in constant magnetic field into an electron-W pair (nu -> W + e) from the imaginary part of the neutrino self-…

hep-ph2002★ 3 cited

Transverse Lambda polarization in inclusive processes

M. Anselmino, D. Boer, U. D'Alesio +1

A formalism proposed to study transverse Lambda polarization in unpolarized hadronic processes, based on a generalized pQCD factorization theorem, is extended to semi-inclusive DIS…