Skip to main content
Vai all'homepage della Commissione europea (si apre in una nuova finestra)
italiano it
CORDIS - Risultati della ricerca dell’UE
CORDIS

Strange baryons and exotic resonances in beauty baryon decays

Obiettivo

Over the last fifteen years spectroscopy, the study of the hadronic states, has received a lot of attention. This has been driven by the observation of many new `exotic' states that do not fit into the traditional picture of mesons (composed of a quark-antiquark pair) and baryos (three quarks) in the constituent quark model. One prominent example is the Z(4430)+ particle, which was discovered in 2008 by the Belle experiment and was recently confirmed by LHCb. Its nature sparked a lot of interest in the theory community because it is charged and decays to charmonium. The LHCb analysis establishes for the first time that the Z(4430)+ is a four quark state. We propose to perform spectroscopy studies using the Lambda(b) to J/psi p K and Lambda(b) to psi(2S) p K decays of Lambda(b) baryons. Such decays are known to be mediated by strange baryon resonances that decay to a final state comprising a proton and a kaon. It turns out that the properties of many of these resonances are also poorly known. If there is structure in p psi(2S) or p J/psi mass, analogous to the Z(4430)+ in B0 decays, this would indicate the presence of a new exotic, five quark, state. Finding such a particle in Lambda(b) decays would be in itself very interesting and could help theorists understand the nature of the exotic states. In addition, the knowledge obtained of strange baryon resonances will be used to test the Standard Model of particle physics in the decay Lambda(b) to p K mu+mu-.

Campo scientifico (EuroSciVoc)

Programma(i)

Argomento(i)

Meccanismo di finanziamento

MSCA-IF-EF-CAR - CAR – Career Restart panel

Vedi tutti i progetti finanziati nell’ambito di questo schema di finanziamento

Invito a presentare proposte

(si apre in una nuova finestra) H2020-MSCA-IF-2014

Vedi tutti i progetti finanziati nell’ambito del bando

Coordinatore

UNIVERSITY OF WARWICK
Contributo netto dell'UE
€ 195 454,80
Indirizzo
KIRBY CORNER ROAD UNIVERSITY HOUSE
CV4 8UW COVENTRY
Regno Unito
Regione
West Midlands (England) West Midlands Coventry
Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
€ 195 454,80