# ICHEP 2010

22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

## Charmed Hadron Physics at Babar

23 Jul 2010, 16:30
13m
Salle 253 ()

### Salle 253

Parallel Session Talk 04 - Hadronic Structure, Parton Distributions, soft QCD, Spectroscopy

### Speaker

Jose Benitez (SLAC)

### Description

* Study of the inclusive production of the D pi and D* pi final states We present a study of the mass spectra of the D+pi-, D*+pi-, and D0pi+ final states in search for unobserved excited states of the D mesons. We use a dataset corresponding to ~454 fb^-1 of e+e- collisions collected by the BABAR detector at center-of-mass energies near 10.58 GeV. The final states are reconstructed inclusively in reactions of the kind e+e- -> ccbar -> D^(*)pi X where X is any additional system. The ccbar events are selected through a cut on the center-of-mass momentum of the D^(*)pi system. * Precision Measurements of the Angular Momentum Excited Charmed Baryon Lambda_c(2880)+ decaying to the Lambda_c+ pi+ pi- state We report results on the measurements of the charmed baryon Lambda_c(2880)+ decaying to the Lambda_c+ pi+ pi- state using approximately 354 fb^-1 of BaBar data. We reconstruct the Lambda_c+ candidates in the decay mode p K pi with a goal of measuring the mass, intrinsic width, cross section and momentum spectra of the resonances decaying into Lambda_c+ pi+ pi- final states. We also report the first measurements on the relative branching fractions of the Lambda_c(2880)+ decaying to the states Sigma_c^0(2455) pi+, Sigma_c^++(2455) pi-, Sigma_c^++(2520) pi-, Sigma_c^0(2520) pi+ and the non resonant Lambda_c+ pi+ pi- mode.

 Slides