000002007 001__ 2007
000002007 005__ 20200720125207.0
000002007 037__ $$aBELLE2-CONF-PROC-2020-010
000002007 041__ $$aeng
000002007 100__ $$aMaximilian Welsch
000002007 245__ $$aMeasurement of Hadronic Mass Moments in B->Xclv Decays at Belle II
000002007 260__ $$a$$c2020-07-20
000002007 300__ $$amult. p
000002007 520__ $$aWe present a measurement of the first six hadronic mass moments in semi-leptonic $B\rightarrow X_c \ell \nu$ decays. The measurement is using the Belle~II data-set recorded at the $\Upsilon(4\mathrm{S}$ resonance in 2019 and 2020 (March-July), corresponding to an integrated luminosity of \SI{34.58}{fb^{-1}}. The decay $\Upsilon(4\mathrm{S})\rightarrow B\overline{B}$ is reconstructed by applying the hadronic tagging algorithm provided by the Full Event Interpretation to fully reconstruct on \PB meson, while the second $B$ meson is reconstructed inclusively by selecting a high-momentum lepton. The $X$-system is identified by the remaining reconstructed tracks and cluster in the electromagnetic calorimeter. We report preliminary results for $M_X^n$ with $n=1,\dots,6$, measured as a function of a lower cut on the lepton momentum in the signal $B$ rest frame.
000002007 700__ $$aFlorian Bernlochner
000002007 8560_ $$fmaximilian.welsch@desy.de