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Belle

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The Belle detektor with open muon system
Candidates vs. M_bc for old and new full reconstruction
Comparison of the previous and improved full reconstruction of B mesons

Project


The Belle detector analyzes reactions at the e+e--collider KEKB at the KEK laboratory in Tsukuba, Japan. Because the center of mass energy is equal to the mass of the Y(4S) resonance and the Y(4S) meson decays into a pair of B mesons, it is called a B factory. By using different energies for the electron and positron beams it is possible to measure the difference in the decay times of the two B mesons. With this setup, the Belle experiment could confirm CP violation in the B0 meson system which was predicted by the theory of Kobayashi and Maskawa who were awarded the Nobel prize for their theory. Furthermore, the large data sample of the Belle experiment allows to perform several high precision measurements on a broad fieled of flavor physics research. The aim of these measurements is to observe deviations from the predictions of the standard model of particle physics to obtain evidence for new particles or interactions.



Contribution of the IEKP


The IEKP is a member of the Belle collaboration since 2008 and performs analyses of CP violation, rare decays and charm physics. Furthermore, we develop high performance analysis algorithms. We could, for example, more than double the number of fully reconstructed B mesons in the Belle dataset.



Links

Belle Experiment


Recent publications concerning BELLE:

Autor bzw. Beitrag des EKP Typ Titel Nummer und Download
Prim, MichaelArtikelAngular analysis of B^{0}→ϕK^{*} decays and search for CP violation at BelleDownload
Heller, Andreas; Feindt, Michael; Heck, Martin; Zupanc, Anze; Kuhr, Thomas; Goldenzweig, PabloKonferenzbeitragMessung des semileptonischen Zerfalls $B^+\rightarrow \ell^+\nu\gamma$ mit $\ell^+ = e^+, \mu^+$Download
Huschle, MatthiasintrepSearch for Charged Higgs Contribution in $B\rightarrow D^\ast\tau\nu_\tau$Download
Grygier, JohannesDiplomarbeitDevelopment and Evaluation of a newCalorimeter Based Variable for Missing Energy Analyses at the Belle ExperimentIEKP-KA/2013-07
Heider, ManuelKonferenzbeitragPrecision measurement of the properties of the a1 mesonDownload
Prim, MichaelDoktorarbeitAngular Analysis of B → φK∗ Decays and Search for CP Violation at the Belle ExperimentIEKP-KA/2013-22
Rilling, SimeonDiplomarbeitMeasurement of the Branching Fraction and the CP Violation of B^{+} -> \bar{D}^{0} D^{+} Decays at the Belle ExperimentIEKP-KA/2013-24
Wehle, SimonDiplomarbeitFull Reconstruction of the Υ(5S) Resonance and Analysis of the Tetraquark State Z_B at BelleIEKP-KA/2013-03
Zander, DanielDoktorarbeitFull Reconstruction And Search For Charged Higgs Effects In Semi-Tauonic B DecaysIEKP-KA/2013-02
Ziegler, MichaelDiplomarbeitSearch for the rare decay B0 → τ+τ- at the Belle experimentIEKP-KA/2013-05