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The polarization measurement in the inclusive B decay provides us with asimple test of how much the long-distance final-state interaction takes placeas the energy of the observed meson varies in the final state. We give theexpectation of the perturbative QCD for the energy dependence of the helicityfractions in a semiquantitative form. Experiment will tell us for which decayprocesses the perturbative calculation should be applicable.Comment: 15 pages in Revtex with 3 figures embedde

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Helicity conservation in inclusive nonleptonic decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi>V</mml:mi><mml:mi>X</mml:mi><mml:mo>:</mml:mo></mml:math>Test of the long-distance final-state interaction

Helicity conservation in inclusive nonleptonic decayB→VX:Test of the long-distance final-state interaction