28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

Latest D0 results on exotic hadrons produced in $p\bar p $ collision

28 Jul 2020, 18:52
15m
virtual conference

virtual conference

Talk 05. Quark and Lepton Flavour Physics Quark and Lepton Flavour Physics

Speaker

Alexey Drutskoy

Description

We selected candidate events for production of the exotic charged charmonium-like states $Z_c^{\pm}(3900)$ decaying to $ J/\psi\pi^{\pm}$ and $X(3872)$ decaying to $J/\psi\pi^{\pm}\pi^{\mp}$. We use 10.4 $\rm fb^{−1}$ of $p\bar p$ collisions recorded by the D0 experiment at the Tevatron collider at $\sqrt s=$1.96 TeV. We measure the $Z_c$ mass and natural width using subsample of candidates originating from semi-inclusive weak decays of b-flavored hadrons and search for the $Z_c$ prompt production. We measure different production properties of the $X(3872)$, such as the prompt fraction as a function of the transverse momentum, that are compared to $\psi(2S)\to \psi\pi^{\pm}\pi^{\mp}$ production. The sample of 10.4 $\rm fb^{−1}$ is also used to search for the inclusive production of the pentaquark states observed in $pp$ collisions at LHCb, $P_c(4400)$ and $P_c(4457)$, decaying to $J/\psi p$.

Secondary track (number) 06

Primary authors

Bob Hirosky (University of Virginia (US)) Boris Tuchming (Université Paris-Saclay (FR)) Alexey Drutskoy

Presentation Materials