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Showing 1 to 19 of 19 for “"meson decay"”.
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The total muon polarization in Kμ3° meson decay
… to study the polarization of the muon in the decay KL. The results of the test of time reversal in variance and the value obtained for the form factor ratio will be presented. o . . 0 KL mesons, from the 31 neutral beam, decayed in vacuum in a magnetic field. The momenta of the ~ and the ~ + …
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Analysis of the neutral D-meson decay to a neutral kaon and two neutral pions
… plot, contributing about one-third of the total decay rate, while the K*(892) is the dominant K0S PI0 contribution. Using three tag modes and correcting for quantum correlations we determine that the D0 to K0S PI0 PI0 branching ratio is 1.059% with a statistical uncertainty of 0.049% and a …
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Using Heavy Flavors To Study New Physics
… model contributions to select leptonic heavy meson decay modes. Included are calculations of soft photon contributions to a di-lepton decay of B-mesons as well as two-particle hadronic unitary contributions to the rare di-leptonic decay of the neutral D meson. Additionally, constraints are …
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Study of muons associated with jets in proton-antiproton collision at [square root]s = 1.8 TeV
… calculations of the muon background due to meson decay and hadron noninteractive punchthrough are presented, and other background sources are evaluated. Distributions of muon transverse momentum relative to the beam and to the jet axis agree with QCD expectations for semileptonic charm and …
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Study of muons associated with jets in proton-antiproton collisions at sqrt.s = 1.8 TeV
… calculations of the muon background due to meson decay and hadron noninteractive punchthrough are presented, and other background sources are evaluated. Distributions of muon transverse momentum relative to the beam and the jet axis agree with QCD expectations for semileptonic charm and …
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Measuring the Reconstructed A' Acceptance of the Darkquest Electromagnetic Calorimeter
… below predictions at low masses for the $\eta$ meson decay production method. These results support the idea that Darkquest will be able to effectively measure dark photon production at the proposed mass ranges.
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Search for the Decay B0 -> eta phi at the BABAR Experiment
Presented is a search for the rare hadronic B meson decay B0 -> eta phi. It is based on 86 x 10^6 BB pairs recorded by the BABAR experiment at the Stanford Linear Accelerator Center between 1999 and 2002. phi mesons are reconstructed in the channel phi -> K+ K-. eta mesons are reconstructed …
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Model-independent approaches to QCD and B decays
We investigate theoretical expectations for B-meson decay rates in the Standard Model. Strong-interaction effects described by quantum chromodynamics (QCD) make this a challenging endeavor. Exact solutions to QCD are not known, but an arsenal of approximation techniques have been developed. We …
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Fertigung und Inbetriebnahme einer Stroh-Driftkammerstation für das COMPASS-Experiment
… necessity of an efficient detection of the D0-meson decay D0 --> K- pi+: Between the first spectrometer magnet and the ring-imaging Cherenkov counter the setup requires a system for the determination of charged-particle tracks. On one hand it has to be compact in the beam direction, on the …
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Exploring Non-Minimality in New Physics Beyond the Standard Model
… of the fermion masses and anomalies observed in meson decay processes, is non-trivial in its flavour structure. The latter part of this thesis then focuses on new physics relating to the dark sector. We begin by developing an entirely general analysis framework with which to structure searches …
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Measurement of the CKM angle $\gamma$ and development of a novel, combined GGSZ analysis of $B \rightarrow D^{(*)} h^{(*)}$ decays at LHCb
… a Dalitz analysis of $B^0 \rightarrow D K^{*0}$ decays, and a study which extends this work to a simultaneous Dalitz analysis of several $B$-meson decay modes of the form $B \rightarrow D^{(*)} K^{(*)}$. In each analysis, $\gamma$ is extracted by studying the interference between CP eigenstates …
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Strange quark suppression in 225 GEV/C pi-minus beryllium interactions
… to study the production of W (783) and rp (1020) mesons in 225 GeV/c pi--Be interactions via their decays into pi+pi- ratio, the strange quark suppression factor.A was determined to be 0.31 ± 0.05, in good agreement with a world average of about 0.29.
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Diffractive hadronic production of D mesons
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T20:09:28Z No. of bitstreams: 1 1980_mackay.pdf: 2689452 bytes, checksum: cee9b85e5c3e41a9222515dc68e61aed (MD5)
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Photoproduction of D*± and Dº Mesons
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-11T18:23:07Z No. of bitstreams: 1 1991_jaross.pdf: 15411852 bytes, checksum: 3ed658311ef8b5f547942aaec6c77945 (MD5)
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Measurement of the relative amplitude and strong phase between antineutral D meson decaying to kaon+ resonance kaon- and neutral D meson decaying to kaon+ resonance kaon- via Dalitz plot analysis of neutral D meson decaying to kaon+ kaon- neutral pion decays
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-06-07T20:27:35Z No. of bitstreams: 1 2006_naik.pdf: 5438557 bytes, checksum: 786a12eff82533d45732c80afe2d2868 (MD5)
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Measurement of the two-photon decay of the KL° meson
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T15:47:54Z No. of bitstreams: 1 1967_todoroff.pdf: 4794483 bytes, checksum: 65b007a60b7f45f3e99b15aff0cc81c1 (MD5)
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Analysis of Neutral D Meson Two-Body Decays to a Neutral Kaon and a Neutral Pion
Decays of neutral D mesons to final states containing K + π's could provide evidence for CP-violation from a source not accounted for in the Standard Model. Due to the interference between Cabibbo-favored and Cabibbo-suppressed transitions, a decay rate asymmetry of D0 → K0S π0 compared to D0 → …
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A Neutron Time-of-Flight Spectrometer Study of f-Zero and A2-Zero Mesons Produced in 4.5 GeV/c Pi-Minus Proton Interactions
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-05T18:52:35Z No. of bitstreams: 1 1973_nodulman.pdf: 1718677 bytes, checksum: 507918c2548c21f78b488c5ae8829c34 (MD5)
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Some results of the algebra of currents in weak interactions. Part I: The decays K -> 2pi and K -> 2 pi gamma; Part II: Relation between vector and axial-vector cabibbo angles in broken SU(3) symmetry
Part I We study the decays K+ -> pi+pio and Ko -> 2pi using the algebra of currents, We show that the decay K+ -> pi+pio is not due to the violation of the selection rule AI = 1/2 caused by the electromagnetic mass .difference [equation] as has been conjectured by some authors but has to be …