Application of HQET to B {r_arrow} K{sup *} transitions

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Phys.Rev. D53 (1996) 3643-3658

OSTI ID:756540

Roberts, W; Ledroit, F

The authors examine the measured rates for the decays D {r_arrow} K{sup *}l{nu}, B {r_arrow} K{sup *}{psi}{prime} and B {r_arrow} K{sup *}{gamma} in a number of scenarios, in the framework of the heavy quark effective theory. They attempt to find a scenario in which all of these decays are described by a single set of form factors. Once such a scenario is found, they make predictions for the rare decays B {r_arrow} K{sup *}l{sup +}l{sup {minus}}. While they find that many scenarios can provide adequate descriptions of all the data, somewhat surprisingly, they observe that two popular choices of form factors, namely monopolar forms and exponential forms, exhibit some shortcomings, especially when confronted with polarization observables. They predict Br({anti B}{sup 0} {r_arrow} {anti K}{sup 0}{mu}{sup +}{mu}{sup {minus}}) = 6.4 {+-} 1.0 x 10{sup {minus}7} and Br({anti B}{sup 0} {r_arrow} {anti K}{sup *0}{mu}{sup +}{mu}{sup {minus}}) = 3.8 {+-} 1.3 x 10{sup {minus}6}. They also make predictions for polarization observables in these decays.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 756540
• Report Number(s): DOE/ER/40150-1583; CEBAF-TH-95-02; ISN-95-100; hep-ph/9510218
• Journal Information: Phys.Rev. D53 (1996) 3643-3658, Journal Name: Phys.Rev. D53 (1996) 3643-3658
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BRANCHING RATIO
D MESONS
FORM FACTORS
KAONS
LEPTONS
QUARK MODEL
RADIATIVE DECAY
SEMILEPTONIC DECAY
WEAK HADRONIC DECAY