scispace - formally typeset
F

F. Spinella

Researcher at Istituto Nazionale di Fisica Nucleare

Publications -  239
Citations -  10513

F. Spinella is an academic researcher from Istituto Nazionale di Fisica Nucleare. The author has contributed to research in topics: Calorimeter (particle physics) & Branching fraction. The author has an hindex of 45, co-authored 239 publications receiving 9461 citations.

Papers
More filters
Journal ArticleDOI

First result from the Alpha Magnetic Spectrometer on the International Space Station: precision measurement of the positron fraction in primary cosmic rays of 0.5-350 GeV.

M. Aguilar, +347 more
TL;DR: The very accurate data show that the positron fraction is steadily increasing from 10 to ∼ 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude, showing the existence of new physical phenomena.
Journal ArticleDOI

Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station

M. Aguilar, +294 more
TL;DR: In this paper, a precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1.GV to 1.8TV is presented based on 300 million events.
Journal ArticleDOI

High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-500 GeV with the Alpha Magnetic Spectrometer on the International Space Station

L. Accardo, +311 more
TL;DR: The new results show, for the first time, that above ∼200 GeV the positron fraction no longer exhibits an increase with energy.
Journal ArticleDOI

Precision Measurement of the Helium Flux in Primary Cosmic Rays of Rigidities 1.9 GV to 3 TV with the Alpha Magnetic Spectrometer on the International Space Station

M. Aguilar, +311 more
TL;DR: The detailed variation with rigidity of the helium flux spectral index is presented for the first time and the spectral index progressively hardens at rigidities larger than 100 GV.
Journal ArticleDOI

Differential branching fractions and isospin asymmetries of B -> K ((*)) μ(+) μ(-) decays

Roel Aaij, +713 more
TL;DR: In this article, the authors measured the isospin asymmetries of the B (0) -> K ( 0) mu (+) mu (-), B (1) → K (1)-m (+) m mu (-) and B (2)→ K (2)-m (-) m (-), respectively.