March 30, 2017 to April 1, 2017
Peking University
Asia/Shanghai timezone

Stability of fully heavy tetraquarks

Apr 1, 2017, 4:35 PM
30m
Peking University

Peking University

B105, West Building of School of Physics (Next to the Metro Station "PKU East Gate", across the street from the main PKU entrance)
Talk New observables New observables

Speaker

Jean-Marc Richard (IPNL)

Description

We discuss the stability of tetraquarks systems made of two heavy quarks and two heavy antiquarks, with a potential model whose linear part is inspired by string dynamics.

At variance with some recent or less recent claims, we do not find binding for the double-charmonium or double-bottomonium cases. The string dynamics is, however, more favorable for (bcb̄c̄), i.e., a charmonium-bottomonium compound.

Some comments are made on the diquark-antidiquark approximation for describing these structures.

This talk is based on the paper: arXiv:1703.00783, to appear in Phys. Rev D.

Primary authors

Jean-Marc Richard (IPNL) Prof. Alfredo Valcarce (Salamanca U.) Prof. Javier Vijande (Valencia U.)

Presentation materials