https://doi.org/10.1051/epjconf/201920411002
Medium-indused modification of kaons spectra measured in SIDIS at HERMES
Yerevan Physics Institute, 375036 Yerevan, Armenia
* e-mail: gevorg91@mail.yerphi.am
Published online: 3 April 2019
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 HERMES experiment. Unlike π+, π– and K+ nuclear modification factor for K– is assumed to increase at high value of Bjorken variable xB and a hadron fraction energy z. The experimental signature of this phenomenon is an enhanced K– nuclear modification factor compared with those of K+ for high xB and z range. The z spectra of nuclear attenuation ratios for charged kaons in different slices of xB extracted on Ne, Kr and Xe targets will be presented and discussed.
© The Authors, published by EDP Sciences, 2019
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