28 research outputs found
Possible Molecular States of System and Y(4140)
The interpretation of Y(4140) as a molecule is studied
dynamically in the one boson exchange approach, where , and
exchange are included. Ten allowed states with
low spin parity are considered, we find that the , ,
, and configurations are most
tightly bound. We suggest the most favorable quantum numbers are
for Y(4140) as a molecule, however,
and can not be excluded. We propose to search for the
and partners in the and final
states, which is an important test of the molecular hypothesis of Y(4140) and
the reasonability of our model. The molecule is
deeply bound, experimental search in the channel at Tevatron
and LHC is suggested.Comment: 13 pages,2 figure
Revisão de Psilochaeta Stein e descrição de Dalcyella gen. n. do Chile (Diptera, Muscidae)
RevisĂŁo dos gĂȘneros sul-americanos: Brachygasterina Macquart e Correntosia Malloch (Diptera, Muscidae)
A multi-criteria decision model for selecting project portfolio with consideration being given to a new concept for synergies
Phaonia Robineau-Desvoidy (Diptera, Muscidae, Phaoniinae): II: revisão das espécies Phaonia Robineau-Desvoidy (Diptera, Muscidae, Phaoniinae): II: revision of the neotropical species
<abstract language="eng">Thirty eight species are recognized in the Neotropical Region. Twenty four are redescribed and illustrated and fourteen were not redescribed, because they are well definite in the original description. A new combination for Mydaea triseta Curran, 1931 to Phaonia and the revalidation of P. nigripuncta Stein, 1911 are made. Five new synonyms are proposed: P. coquilletii (Vimmer, 1939) = P. punctinervis Stein, 1911; P. nigrocincta Stein, 1918 = P. abdita (Giglio-Tos, 1893); P. praedatoria (Snyder, 1957) = P. latinervis (Stein, 1904); P. vulgata (Albuquerque & Medeiros, 1980) = P. similata (Albuquerque, 1957); P. nigra (Albuquerque & Medeiros, 1980) = P. trispila (Bigot, 1885). A key to the neotropical species is presented for the thirty eight recognized species