Isgur-Wise function in a relativistic model for a {ital q{bar Q}} system

Journal Article · Sat Jul 01 00:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.254· OSTI ID:69094

Ahmady, M R; Mendel, R R; Talman, J D ^[1]

---

1. Department of Applied Mathematics, The University of Western Ontario, London, Ontario (Canada)

Fits to the data give {bar {Lambda}} {sub {ital u},}{ital d}{sup 2}/{sigma}=4.8{plus_minus}1.7, {minus}{xi}{sub {ital u},}{ital d}{sup {prime}}(1)=2.4{plus_minus}0.7, and {vert_bar}{ital V}{sub {ital c}{ital b}}{vert_bar} {radical}{tau}{sub {ital B}}/1.48 ps =0.050{plus_minus}0.008 [ARGUS 1993]; {bar {Lambda}} {sub {ital u},}{ital d}{sup 2}/{sigma}=3.3{plus_minus}1.2, {minus}{xi}{sub {ital u},}{ital d}{sup {prime}}(1)=1.8{plus_minus}0.5, and {vert_bar}{ital V}{sub {ital c}{ital b}}{vert_bar} {radical}{tau}{sub {ital B}}/1.48 ps =0.043{plus_minus}0.005 [CLEO 1993]; {bar {Lambda}} {sub {ital u},}{ital d}{sup 2}/{sigma}=2.0{plus_minus}0.7, {minus}{xi}{sub {ital u},}{ital d}{sup {prime}}(1)=1.3{plus_minus}0.3, and {vert_bar}{ital V}{sub {ital c}{ital b}}{vert_bar}{ital F}(1)=0.037{plus_minus}0.002 [CLEO 1994] [existing theoretical estimates for {ital F}(1) fall in the range 0.86{lt}{ital F}(1){lt}1.01.] Our model seems to favor the CLEO 1994 data set in two respects: the fits are better and the resulting ranges for the model parameters ({bar {Lambda}}{sub {ital u},}{ital d}{sub ,}{sigma}) are more in line with independent theoretical estimates.

• OSTI ID: 69094
• Journal Information: Physical Review, D, Vol. 52, Issue 1; Other Information: PBD: 1 Jul 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
QUARK MODEL
RELATIVISTIC RANGE
DIRAC EQUATION
COULOMB FIELD
WAVE FUNCTIONS
GROUND STATES
ENERGY
EIGENVALUES
QUARKS