Electroweak modelindependent tests for SU(3) symmetry in hadronic B decays
Abstract
We study the effects of new physics beyond the standard model on SU(3) symmetry in charmless hadronic two body B decays. It is found that several equalities for some of the decay amplitudes if small annihilation contributions are neglected, such as A(B_{d}(B_{u})>π^{+}π^{},π^{+}K^{}(π^{}K¯^{0}))=A(B_{s}>K^{+}π^{},K^{}K^{+}(K^{0}K¯^{0})), A(B_{d}>π^{+}ρ^{},π^{}ρ^{+},K^{}ρ^{+},π^{+}K^{*}) = A(B_{s}>K^{+}ρ^{},π^{}K^{*+},K^{}K^{*+},K^{+}K^{*}), A(B_{d}(B_{u})>ρ^{+}ρ^{}, ρ^{+}K^{*}(ρ^{}K¯^{*0}))=A(B_{s}>K^{*+}ρ^{}, K^{*}K^{*+}(K^{*0}K¯^{*0})), predicted by SU(3) symmetry in the SM are not affected by new physics. These relations provide important electroweak model independent tests for SU(3) symmetry in B decays. We also discuss how the assumption of the smallness of annihilation contributions can be tested experimentally.
 Publication:

Physical Review D
 Pub Date:
 December 2000
 DOI:
 10.1103/PhysRevD.62.114015
 arXiv:
 arXiv:hepph/0007080
 Bibcode:
 2000PhRvD..62k4015H
 Keywords:

 13.20.He;
 11.30.Er;
 12.38.Bx;
 Decays of bottom mesons;
 Charge conjugation parity time reversal and other discrete symmetries;
 Perturbative calculations;
 High Energy Physics  Phenomenology
 EPrint:
 4 pages, revtex