XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects

Medium-induced modification of kaon spectra measured in semi-inclusive DIS at HERMES

Not scheduled

20m

Virtual (Stony Brook, NY)

Recorded Flash Talk QCD with Heavy Flavors and Hadronic Final States Recorded Flash Talk

Speaker

Gevorg Nazaryan (A. Alikhanyan National Science Laboratory)

Description

The predicted high sensitivity of the nuclear modification factor for $K^{-}$ in
SIDIS due to the QCD based effect of medium-induced flavour conversion in the fragmentation function is studied at the HERMES experiment. Unlike ${\pi }^{+}$, ${\pi }^{-}$ and $K^{+}$, nuclear modification factor for $K^{-}$ is expected to increase at high values of the Bjorken variable $x_B$ and hadron fractional energy $z$. The experimental signature of this phenomenon is an enhanced $K^{-}$ nuclear modification factor compared with those of $K^{+}$ for the high $x_B$ and $z$ range. The $z$ spectra of nuclear attenuation ratios for charged kaons in different slices of $x_B$ extracted on Ne, Kr and Xe targets will be presented and discussed.

Presentation materials

Nuc_atten_DIS2021_zoom_recording_gevorg_nazaryan.mp4

Nuc_Atten_Gevorg_Nazaryan_DIS2021.pdf

Youtube Link