35 research outputs found
Confirmation of a pi_1^0 Exotic Meson in the \eta \pi^0 System
The exclusive reaction , at 18 GeV has been studied with a partial wave analysis on a sample
of 23~492 events from BNL experiment E852. A mass-dependent fit
is consistent with a resonant hypothesis for the wave, thus providing
evidence for a neutral exotic meson with , a mass of MeV, and a width of MeV. New
interpretations of the meson exotics in neutral system observed in
E852 and Crystal Barrel experiments are discussed.Comment: p3, rewording the paragraph (at the bottom) about the phase
variations. p4, rewording paragrath "The second method ..." . p4, at the
bottom of paragrath "The third method ..." added consistent with the results
of methods 1 and 2
Exotic Meson Production in the System observed in the Reaction at 18 GeV/c
This letter reports results from the partial wave analysis of the
final state in collisions at 18GeV/c.
Strong evidence is observed for production of two mesons with exotic quantum
numbers of spin, parity and charge conjugation, in the decay
channel . The mass MeV/c^2 and
width MeV/c^2 of the first state are consistent
with the parameters of the previously observed . The second
resonance with mass MeV/c^2 and width MeV/c^2 agrees very well with predictions from theoretical
models. In addition, the presence of is confirmed with mass MeV/c^2 and width MeV/c^2
and a new state, , is observed with mass
MeV/c^2 and width MeV/c^2. The decay properties of
these last two states are consistent with flux tube model predictions for
hybrid mesons with non-exotic quantum numbers
Dommel: Centre of ecological technology, Boxtel
Met als bijlage: A0 posterArchitectur
Petri Net Model of a Smart Factory in the Frame of Industry 4.0
Industry 4.0 advocates an intensive use of information and communication technologies in manufacturing facilities for achieving sustainability and success in a market with exigent and informed consumers willing personalized products and services. Three main concepts of the Industry 4.0 paradigm are addressed: cyber-physical systems, the Internet of Things, and virtualization. A Petri net model of a smart factory regarding the Industry 4.0 paradigm is proposed as virtualization for decision making support. Enhanced computing and communication capabilities of machines and products allow implementing the approach of mass customization. Any product is associated to a sequence of services, being able to request them to the appropriate machines. The formalism of the object Petri nets has been chosen, where a token net is associated to the product and a system net to the facility. The resulting model can be considered for analysis, performance evaluation, and decision making support. © 201
Main Pathogens Detected in Milk
Milk and dairy products could contain a variety of microorganisms, deriving from the environment or from infected udders, becoming an important source of foodborne pathogens. The main microorganisms involved in mastitis are Staphylococcus aureus, Prototheca spp., Mycoplasma spp. and Streptococcus spp., while the principal pathogens responsible for foodborne disease are enterotoxigenic Staphylococcus aureus, Salmonella spp., Listeria monocytogenes, Escherichia coli VTEC, Campylobacter spp. and Bacillus cereus. This chapter presents information on characteristics of these pathogens, and illnesses caused by them. An overview in the field of foodborne pathogen identification and detection by using different molecular techniques (multiplex PCR, quantitative PCR, digital PCR and Whole Genome Sequencing) is also reported