Conveners
Hadron structure, spectroscopy and dynamics: AULA 7
- Nicole d'Hose (CEA Saclay)
- Marco Radici (PV)
Hadron structure, spectroscopy and dynamics: AULA 7
- Marco Radici (PV)
- Nicole d'Hose (CEA Saclay)
Hadron structure, spectroscopy and dynamics: AULA 2
- Marco Radici (PV)
- Nicole d'Hose (CEA Saclay)
Mr
Roger Carlini
(Jefferson Lab)
04/09/2018, 14:00
Experimental programs in the fields of nuclear and particle physics are searching for evidence of physics beyond that explained by current theories. The Standard Model cannot predict fundamental parameters such as the mass of the Higgs boson or account for dark matter/energy, gravity, and the matter–antimatter asymmetry in the Universe. These limitations have inspired direct searches for...
Dr
Carlos Munoz Camacho
(IPN)
04/09/2018, 15:30
Exclusive processes at high momentum transfer, such as Deeply Virtual Compton Scattering (DVCS) access the Generalized Parton Distributions (GPDs) of the nucleon. GPDs offer the exciting possibility of mapping the 3-D internal structure of protons and neutrons by providing a transverse image of the constituents as a function of their longitudinal momentum.
A vigorous experimental program is...
Susan Schadmand
(Forschungszentrum Juelich)
04/09/2018, 16:05
Electromagnetic transition form factors are determined via meson decays into final states with dileptons. Form factors are evaluated as a function of the momentum transfer which is identical to the invariant mass of the dileptons. The results provide basic knowledge of the structure of hadrons and address the validity of vector meson dominance. Transition form factors are of renewed interest...
Dr
Johan Messchendorp
(KVI-CART/University of Groningen)
04/09/2018, 17:25
A status report on XYZ states is shown and the last results by BESIII are reported.
The present data on the hidden charm candidate, the Y(4660), are discussed, in particular BESIII data close to the Λc-Λcbar threshold in comparison with Belle data.
Future BESIII plans are also reported.
Dr
Mikhail Barabanov
(Joint Institute for Nuclear Research)
04/09/2018, 17:50
The spectroscopy of charmonium-like mesons with masses above the 2mD open charm threshold has been full of surprises and remains poorly understood. The currently most compelling theoretical descriptions of the mysterious XYZ mesons attribute them to hybrid structure with a tightly bound cc\bar diquark or cq(cq')\bar tetraquark core that strongly couples to S-wave DD*\bar molecular-like...
Monica Bertani
(LNF - Frascati (Italy))
04/09/2018, 18:10
A status report on Baryon Timelike Form Factors is shown and the last results by BESIII are reported. Unexpected features are enlightened, like: oscillations in the
e+ e- -> ppbar cross section energy behaviour, a jump in the e+ e- Lambda_c Lambda_cbar cross section at threshold, like in the case of e+ e- ->ppbar, as well as a jump in the
e+ e- ->Lambda Lambda_bar cross section close...
Xinyu Shan
(University of Science and Technology of China)
06/09/2018, 17:00
The BESIII experiment at BEPCII accumulated the world's largest e+e- collision samples at 3.773 and 4.178 GeV. In (semi-)leptonic decay aspect, we have studied the purely leptonic decays D+ -> tau+v and D_S+->mu+v, and the semi-leptonic decays of D0 to K(pi)- mu+v, D+ -> pi0 mu+v, D+(_S) -> eta(') ev and D_S+->K(*)0 e+v. We will report the improved measurements of the branching fractions of...
Dr
Judith McGovern
(The University of Manchester)
06/09/2018, 17:20
The scalar and spin electromagnetic polarisabilities of the proton and neutron are still not particularly
well determined by Compton scattering experiments, with uncertainties ranging from somewhat less that
10% to over 100%. In the absence of free neutron targets, neutron properties must be extracted from light
nuclei, particularly the deuteron and 3He, but that requires a good...
Mr
Edoardo Mornacchi
(University of Mainz)
06/09/2018, 17:50
The electric (αE1) and magnetic (βM1) scalar polarizabilities describe the response of the nucleon to an applied electric or magnetic field. They are not only fundamental properties related to the internal structure and dynamics of the nucleon, but they are important also in other areas of physics, such as atomic structure. The values of αE1 and βM1 quoted by the Particle Data Group were...
