0000000001330546
AUTHOR
S. Song
Measurement of thett¯production cross section inpp¯collisions ats=1.96 TeVusing soft electronb-tagging
The authors present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks coming from the event interaction vertex is applied to identify b quarks from top decay. Using 318 pb{sup -1} of data collected with the CDF II detector, they measure the t{bar t} production cross section in events with at least one restrictive (tight) b-tagged jet and obtain 8.9{sub -1.0}{sup +1.0}(stat.){sub -1.0}{sup +1.1}(syst.) pb. The cross section value assumes a top quark mass of m{sub t} is presented in the paper. This result is cons…
Family reunification: the case of the Muslim migrant children in Europe
Adopting a child is not a legal concept recognized in Islamic law, who however giving a great importance to orphans and children's rights, has introduced the legal institute of the "Kafala". This institute can be defined as a commitment by the "kafil" to ensure maintenance, education and protection of a minor "makfoul" until his legal majority, in the same way as would a father to his son, but without creating any family relationship. For these reasons the “Kafala” can not be compared to an international adoption, which, contrariwise, entails the creation of a parent-child relationship. If, in one side the Kafala is a legal concept recognized by International Law, in particular by the Unite…