Federica Tessarotto

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The COMPASS experiment at the CERN SPS has studied the diffractive dissociation of negative pions into the π- π- π+ final state using a 190  GeV/c pion beam hitting a lead target. A partial wave analysis has been performed on a sample of 420,000 events taken at values of the squared 4-momentum transfer t' between 0.1 and 1  GeV2/c2. The well-known(More)
First measurements of the Collins and Sivers asymmetries of charged hadrons produced in deep-inelastic scattering of muons on a transversely polarized 6LiD target are presented. The data were taken in 2002 with the COMPASS spectrometer using the muon beam of the CERN SPS at 160 GeV/c. The Collins asymmetry turns out to be compatible with zero, as does the(More)
A large acceptance and high luminosity measurement of identiied hadrons from deep inelastic scattering of polarised muons from a polarised solid state target is proposed. The gluon polarisation G=G will be determined with a precision of ((G=G) = 0:15 from the measured asymmetries of open charm production from a longitudinally po-larised target. The spin(More)
We present the results of the spin asymmetries A 1 of the proton and the deuteron in the kinematic region extending down to xϭ6ϫ10 Ϫ5 and Q 2 ϭ0.01 GeV 2. The data were taken with a dedicated low x trigger, which required hadron detection in addition to the scattered muon, so as to reduce the background at low x. The results complement our previous(More)
We present the final results of the spin asymmetries A 1 and the spin structure functions g 1 of the proton and the deuteron in the kinematic range 0.0008ϽxϽ0.7 and 0.2ϽQ 2 Ͻ100 GeV 2. For the determination of A 1 , in addition to the usual method which employs inclusive scattering events and includes a large radiative background at low x, we use a new(More)
We have measured the spin-dependent structure function g 1 p in inclusive deep-inelastic scattering of polarized muons off polarized protons, in the kinematic range 0.003ϽxϽ0.7 and 1 GeV 2 ϽQ 2 Ͻ60 GeV 2. A next-to-leading order QCD analysis is used to evolve the measured g 1 p (x,Q 2) to a fixed Q 0 2. The first moment of g 1 p at Q 0 2 ϭ10 GeV 2 is ⌫ 1 p(More)
We present a measurement of the longitudinal spin cross section asymmetry for deep-inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of event classification are used to increase the contribution of the photon-gluon fusion process to above 30%. The most effective one, based on a neural network(More)
In daily life and in courtrooms, people regularly analyze the minds of others to understand intentions. Specifically, the detection of intentions behind prior events is one of the main issues dealt with in courtrooms. To our knowledge, there are no experimental works focused on the use of memory detection techniques to detect past intentions. This study(More)
Angelman syndrome (AS) is a rare neurogenetic disorder due to loss of expression of maternal ubiquitin-protein ligase E3A (UBE3A) gene. It is characterized by severe developmental delay, speech impairment, movement or balance disorder and typical behavioral uniqueness. Affected individuals show normal magnetic resonance imaging (MRI) findings, although mild(More)