Phys. Rev. D 44, 593 - 600 (1991)
Study of continuum D*+ spin alignment
Y. Kubota et al. (CLEO Collaboration)
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Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, G. Crawfordb, R. Fultonb, T. Jensenb, D. R. Johnsonb, H. Kaganb, R. Kassb, R. Malchowb, F. Morrowb, J. Whitmoreb, P. Wilsonb, D. Bortolettoc, D. Brownc, J. Dominickc, R. L. McIlwainc, D. H. Millerc, M. Modesittc, C. R. Ngc, S. F. Schaffnerc, E. I. Shibatac, I. P. J. Shipseyc, M. Battlec, H. Krohad, K. Sparksd, E. H. Thorndiked, C. -H Wangd, M. S. Alame, I. J. Kime, W. C. Lie, B. Nematie, V. Romeroe, C. R. Sune, P. -N. Wange, M. M. Zoellere, M. Goldbergf, T. Hauptf, N. Horwitzf, V. Jainf, M. D. Mestayerf, G. C. Monetif, Y. Rozenf, P. Rubinf, T. Skwarnickif, S. Stonef, M. Thusalidasf, W. -M. Yaof, G. Zhuf, A. V. Barnesg, J. Barteltg, S. E. Csornag, T. Letsong, P. Averyh, J. Alexanderi, M. Artusoi, C. Bebeki, K. Berkelmani, D. Bessoni, T. Browderi, D. G. Casseli, E. Cheui, D. M. Coffmani, P. S. Drelli, R. Ehrlichi, M. Garcia-Sciveresi, B. Geiseri, B. Gittelmani, S. W. Grayi, A. M. Hallingi, D. L. Hartilli, B. K. Heltsleyi, K. Honscheidi, J. Kandaswamyi, N. Katayamai, D. L. Kreinicki, J. D. Lewisi, G. S. Ludwigi, J. Masuii, J. Mevisseni, N. B. Mistryi, S. Nandii, E. Nordbergi, C. O'Gradyi, D. Petersoni, M. Pisharodyi, D. Rileyi, M. Sapperi, M. Seleni, A. Silvermani, H. Wordeni, M. Worrisi, A. J. Sadoffj, L. Garrenh, J. Rodriguezh, J. Yeltonh, S. Hedersonk, K. Kinoshitak, F. Pipkink, M. Procariok, R. Wilsonk, J. Wolinskik, R. Ammarl, P. Baringerl, D. Coppagel, R. Davisl, P. Haasl, M. Kellyl, N. Kwakl, Ha Laml, and S. Rol (CLEO Collaboration)
aUniversity of Minnesota, Minneapolis, Minnesota 55455
bOhio State University, Columbus, Ohio 43210
cPurdue University, West Lafayette, Indiana 47907
dUniversity of Rochester, Rochester, New York 14627
eState University of New York at Albany, Albany, New York 12222
fSyracuse University, Syracuse, New York 13244
gVanderbilt University, Nashville, Tennessee 37235
hUniversity of Florida, Gainesville, Florida 32611
iCornell University, Ithaca, New York 14853
jIthaca College, Ithaca, New York 14850
kHarvard University, Cambridge, Massachusetts 02138
lUniversity of Kansas, Lawrence, Kansas 66045
Received 25 January 1991
The spin alignment of D*+ mesons produced in e+e- annihilation at sqrt[s]=10.5 GeV is obtained from a study of the angular distribution of the decay D*+→D0π+. The alignment is studied as a function of momentum and compared to theoretical predictions. We find an average value of the spin alignment parameter η of 〈η〉=0.04±0.02±0.01. We obtain a model-dependent measurement of the probability of producing a vector particle 〈PV〉=0.77±0.02±0.01 for D mesons.
©1991 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevD.44.593
DOI: 10.1103/PhysRevD.44.593
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