26-30 April 2009
Palacio de Congresos de Madrid
Europe/Zurich timezone

Properties of exotic charmonium-like mesons at CDF

27 Apr 2009, 15:20
15m
Room "SALA 2-B" (Palacio de Congresos de Madrid)

Room "SALA 2-B"

Palacio de Congresos de Madrid

Paseo de la Castellana, 99 28046 Madrid España

Speaker

Kai Yi (Physics and Astronomy Department-University of Iowa)

Description

CDF reports the recent evidence for a new narrow resonance, Y(4140), decaying to J/psi phi final state, and reconstructed using 2.7 fb-1 of exclusive B+->J/psiphiK decays. Using the world's largest sample of X(3872)->J/psipipi decays, a study on the X(3872) mass and width aimed at testing the internal composition of this state is also described. This lead to the most precise X(3872) mass measurement to date and disfavors the hypothesis of the X(3872) being composed of two resonances closely spaced in mass.

Primary author

Kai Yi (Physics and Astronomy Department-University of Iowa)

Presentation Materials