منابع مشابه
Final State Interaction Effects in B+→J/ψ π+ Decay
In this research the exclusive decay of is calculated by QCD factorization (QCDF) method and final state interaction (FSI). First, the decay is calculated via QCDF method. The result that is found by using the QCDF method is less than the experimental result. So FSI is considered to solve the decay. For this decay, via the exchange of mesons are chosen for the intermedi...
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QCD was invented in 1973. (There were some earlier hints.) We are still concerned with it as neither perturbative nor currently available non-perturbative (e.g., lattice) methods apply to many interesting phenomena. These include hadron structure, spectroscopy, jet and quarkonium fragmentation, heavy ion physics, and effects of thresholds. The understanding of hadronic behavior is crucial in se...
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We have searched for two-body charmless decays of B mesons to purely hadronic exclusive final states including ω or φ mesons using data collected with the CLEO II detector. With this sample of 6.6 × 106 B mesons we observe a signal for the ωK+ final state, and measure a branching fraction of B(B+ → ωK+) = (1.5 −0.6 ± 0.2) × 10−5. We also observe some evidence for the φK final state, and upper l...
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متن کاملClosing Talk: Qcd Moriond 2006
One of the advantages of giving the closing talk at a conference with only plenary sessions, is that a summary is certainly superfluous. I shall take full advantage of that freedom in my talk and present only a few topics. In the infinite momentum frame (IMF) a proton or nucleus is seen as a Lorentz contracted disk, and xg(x, Q 2) is the number of gluons per unit rapidity of transverse size les...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2020
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-020-7817-x