Ammar, Raymond G.Baringer, Philip S.Bean, AliceBesson, David ZekeCoppage, DonCopty, N.Davis, Robin E. P.Hancock, N.Kotov, S.Kravchenko, I.Kwak, Nowhan2007-04-132007-04-131996-05Duboscq, JE, Fulton, R, et al. Measurement of the form factors for (B)over-bar(0)->D*(+)l(-)(nu)over-bar. PHYSICAL REVIEW LETTERS. May 1996. 76(21) : 3898-3902http://publish.aps.org/https://hdl.handle.net/1808/1396Using a sample of 2.6 x 10(6) Upsilon(4S) --> B (B) over bar events collected with the CLE (O) over right arrow II detector at the Cornell Electron Storage Ring, we have measured the form factors for (B) over bar(0) --> D*(+)l(-)<(nu)over bar>. We perform a three-parameter fit with the joint distribution of four kinematic variables to obtain the form-factor ratios R(1) = 1.18 +/- 0.30 +/- 0.12 and R(2) = 0.71 +/- 0.22 +/- 0.07, and the form-factor slope rho(A1)(2) = 0.91 +/- 0.15 +/- 0.06, which is closely related to the slope of the Isgur-Wise function. The form-factor ratios are consistent with predicted corrections to the heavy-quark symmetry limit R(1) = R(2) = 1.en-USArticleopenAccess