# ICHEP2018 SEOUL

Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

## Studies of the $X^{\pm}(5568)$ state and Evidence for Zc±(3900) in b-flavored Hadron Decays at D0

Jul 7, 2018, 2:00 PM
20m
101 (COEX, Seoul)

### 101

#### COEX, Seoul

Parallel Strong Interactions and Hadron Physics

### Speaker

Dmitri Denisov (Fermi National Accelerator Lab. (US))

### Description

We study the production of a narrow structure $X^{\pm}(5568)$ decaying to $B^0_s\pi^{\pm}$ produced in $10.4\ \rm fb^{−1}$ of $p\bar p$ collisions recorded by the D0 detector at the Fermilab Tevatron collider at $\sqrt s=1.96\$TeV. We report evidence for the production of $X^{\pm}(5568)$ using the semileptonic mode $B^0_s \to \mu^{\mp}D_s^{\pm}X$ with $D_s^{\pm}\to\phi\pi^{\pm}$. The results are consistent with the previous measurements by D0 of the production of $X^{\pm}(5568)$ using the hadronic decay $B^0_s \to J/\psi\phi$. The mass and width of this state are measured using a combined fit of the hadronic and semileptonic data.

### Primary authors

Bob Hirosky (University of Virginia (US)) Boris Tuchming (CEA Saclay) Dmitri Denisov (Fermi National Accelerator Lab. (US))

### Presentation materials

 ICHEP_Denisov.pdf ICHEP_Denisov.pptx