Banca de DEFESA: RODRIGO OLIVEIRA MAGALHÃES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RODRIGO OLIVEIRA MAGALHÃES
DATE: 12/05/2023
TIME: 10:00
LOCAL: Plataforma da conferência WEB - RNP
TITLE:

Interactions of exotic states in a medium
hadronic: the case of Zc(3900)

KEY WORDS:

 Exotic hadrons, tetraquark, Zc(3900) state

PAGES: 125
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUMMARY:

In 2013, the BESIII and Belle collaborations observed the charged exotic state Zc(3900) in the invariant mass spectrum of J/ψπ±. In an attempt to theoretically understand its nature, we studied the interactions of this state in a hadronic medium composed of light mesons, specifically the production and absorption of this state through processes such as Zcπ → DD¯, Zcπ → D ∗D¯ ∗ , Zcπ → DD¯ ∗ , and their respective inverse processes. Therefore, considering the Zc(3900) as a compact tetraquark state of the type diquark-antidiquark (ccq¯ q¯) and using effective Lagrangians, we determined the vacuum cross-sections for each process, the total cross-sections, the sum of all cross-sections, and their respective thermal-averages. The results suggest that the interactions of the cited state with the constituent particles of the hadronic medium are relevant.

COMMITTEE MEMBERS:
Interno - 2582577 - CASSIO BRUNO MAGALHAES PIGOZZO
Interno - 1551342 - LUCIANO MELO ABREU
Externo ao Programa - ***.385.127-** - SANDRO FONSECA DE SOUZA - UERJ