Published 2000 | Version v1
Book Metadata-only

Exclusive weak B decays to excited meson states

Creators

  • 1. Inst. fuer Physik, Humboldt-Univ. zu Berlin, Berlin (Germany)
  • 2. Research Center for Nuclear Physics (RCNP), Osaka Univ., Ibaraki, Osaka (Japan)
  • 3. Russian Academy of Sciences, Scientific Council for Cybernetics, Moscow (Russian Federation)

Description

Exclusive semileptonic Β decays to radially excited and charmed mesons and rare radiative Β decay to the orbitally excited tensor K(1430) meson are investigated in the framework of the relativistic quark model. The heavy quark expansion is applied for the semileptonic Β → D eν decays. Both relativistic and 1/mQ corrections are found to play an important role for these decays. For rare radiative Β decay the expansion in inverse powers of large recoil momentum of final K(1430) meson is applied. The calculated branching fraction ΒR as well as the ratio ΒR are found to be in a good agreement with experimental data

Abstract (Russian)

Эксклюзивные полулептонные Β-распады на радиально возбужденные очарованные мезоны и редкие радиационные Β-распады на орбитально возбужденные тензорные мезоны К(1430) исследуются в рамках релятивистской кварковой модели. Для полулептонного Β → D eν применяется разложение по тяжелым кваркам. Найдено, что как релятивистская, так и 1/mQ поправки играют важную роль в этих распадах. Для редких радиационных Β-распадов применяется разложение по обратным степеням больших импульсов отдачи конечного К(1430) мезона. Вычисленные доли ветвления и их отношение хорошо согласуются с экспериментальными данными
Part of:
Fundamental problems of high energy physics and field theory. Proceedings of the 23. Workshop on high energy physics and field theory

Additional details

Publishing Information

Publisher
State Research Centre of Russia Institute for High Energy Physics
Imprint Place
Protvino (Russian Federation)
ISBN
5-88738-038-1
Imprint Title
Fundamental problems of high energy physics and field theory. Proceedings of the 23. Workshop on high energy physics and field theory
Imprint Pagination
361 p.
Journal Page Range
p. 68-78

Conference

Title
23. Workshop on high energy physics and field theory
Dates
21-23 Jun 2000
Place
Protvino (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34085396
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
B MESONS; BRANCHING RATIO; CHARMED MESONS; COMPARATIVE EVALUATIONS; CORRECTIONS; ELECTRONS; EXCITED STATES; EXCLUSIVE INTERACTIONS; GAMMA RADIATION; K*2-1430 MESONS; QUARK MODEL; SEMILEPTONIC DECAY
Descriptors DEC
BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CHARM PARTICLES; COMPOSITE MODELS; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY LEVELS; EVALUATION; FERMIONS; HADRONS; INTERACTIONS; IONIZING RADIATIONS; LEPTONS; MATHEMATICAL MODELS; MESONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PSEUDOSCALAR MESONS; RADIATIONS; STRANGE MESONS; STRANGE PARTICLES; TENSOR MESONS; WEAK PARTICLE DECAY

Optional Information

Notes
30 refs., 2 figs., 2 tabs.