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Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Final state interaction in heavy hadron decay Permalink
| Content Provider | Semantic Scholar |
|---|---|
| Author | Suzuki, Mahiko |
| Copyright Year | 2000 |
| Abstract | Though nothing is known for B → ππ,Kπ,KK, we might conjecture that the FSI phases diminish as the initial mass increases. Meanwhile the relative FSI phase is known for the ggg and ”γ” decay amplitudes of the J/ψ decays: 3 ∆δ ≈ 90 and 75 for J/ψ → 00 and 01, respectively. Therefore, if the FSI phases diminish with the increasing initial mass, it should start diminishing somewhere between mJ/ψ and mB or at higher energies. Can we argue that short-distance (SD) QCD should dominate 4 in the FSI of B meson decays ? I am skeptical. Take the spectator decay B(bu) → K(sd)π(du). K is formed with energetic s and d flying away colinearly, while d picks up the soft spectator u to form π. The gluons exchanged between d and s (or d) are hard. But the gluons between the soft spectator u and s (or d) are not so hard. The CM energy of the u and s (or d) grows only with √ mb, not linearly inmb. By simple kinematics,mdu ≈ (ΛQCDmb) ≃1.2 GeV for Eu ≃ ΛQCD, which is in the middle of the resonance region of the sd |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/hep-ph/0001170v1.pdf |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt358305q6/qt358305q6.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
