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Phys Rev Lett. 2001 Dec 10;87(24):241801. doi: 10.1103/PhysRevLett.87.241801. Epub 2001 Nov 20.

Measurement of the B--> J/psiK*(892) decay amplitudes.

Physical review letters

B Aubert, D Boutigny, J M Gaillard, A Hicheur, Y Karyotakis, J P Lees, P Robbe, V Tisserand, A Palano, G P Chen, J C Chen, N D Qi, G Rong, P Wang, Y S Zhu, G Eigen, P L Reinertsen, B Stugu, B Abbott, G S Abrams, A W Borgland, A B Breon, D N Brown, J Button-Shafer, R N Cahn, A R Clark, M S Gill, A Gritsan, Y Groysman, R G Jacobsen, R W Kadel, J Kadyk, L T Kerth, S Kluth, Y G Kolomensky, J F Kral, C LeClerc, M E Levi, T Liu, G Lynch, A B Meyer, M Momayezi, P J Oddone, A Perazzo, M Pripstein, N A Roe, A Romosan, M T Ronan, V G Shelkov, A V Telnov, W A Wenzel, P G Bright-Thomas, T J Harrison, C M Hawkes, A Kirk, D J Knowles, S W O'Neale, R C Penny, A T Watson, N K Watson, T Deppermann, K Goetzen, H Koch, J Krug, M Kunze, B Lewandowski, K Peters, H Schmuecker, M Steinke, J C Andress, N R Barlow, W Bhimji, N Chevalier, P J Clark, W N Cottingham, N De Groot, N Dyce, B Foster, J D McFall, D Wallom, F F Wilson, K Abe, C Hearty, T S Mattison, J A McKenna, D Thiessen, S Jolly, A K McKemey, J Tinslay, V E Blinov, A D Bukin, D A Bukin, A R Buzykaev, V B Golubev, V N Ivanchenko, A A Korol, E A Kravchenko, A P Onuchin, A A Salnikov, S I Serednyakov, Y I Skovpen, V I Telnov, A N Yushkov, D Best, A J Lankford, M Mandelkern, S McMahon, D P Stoker, A Ahsan, K Arisaka, C Buchanan, S Chun, J G Branson, D B MacFarlane, S Prell, S Rahatlou, G Raven, V Sharma, C Campagnari, B Dahmes, P A Hart, N Kuznetsova, S L Levy, O Long, A Lu, J D Richman, W Verkerke, M Witherell, S Yellin, J Beringer, D E Dorfan, A M Eisner, A Frey, A A Grillo, M Grothe, C A Heusch, R P Johnson, W Kroeger, W S Lockman, T Pulliam, H Sadrozinski, T Schalk, R E Schmitz, B A Schumm, A Seiden, M Turri, W Walkowiak, D C Williams, M G Wilson, E Chen, G P Dubois-Felsmann, A Dvoretskii, D G Hitlin, S Metzler, J Oyang, F C Porter, A Ryd, A Samuel, M Weaver, S Yang, R Y Zhu, S Devmal, T L Geld, S Jayatilleke, G Mancinelli, B T Meadows, M D Sokoloff, T Barillari, P Bloom, M O Dima, S Fahey, W T Ford, D R Johnson, U Nauenberg, 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Cochran, H B Crawley, P A Fischer, J Lamsa, W T Meyer, E I Rosenberg, M Benkebil, G Grosdidier, C Hast, A Höcker, H M Lacker, V LePeltier, A M Lutz, S Plaszczynski, M H Schune, S Trincaz-Duvoid, A Valassi, G Wormser, R M Bionta, V Brigljević, D J Lange, M Mugge, X Shi, K van Bibber, T J Wenaus, D M Wright, C R Wuest, M Carroll, J R Fry, E Gabathuler, R Gamet, M George, M Kay, D J Payne, R J Sloane, C Touramanis, M L Aspinwall, D A Bowerman, P D Dauncey, U Egede, I Eschrich, N J Gunawardane, J A Nash, P Sanders, D Smith, D E Azzopardi, J J Back, P Dixon, P F Harrison, R J Potter, H W Shorthouse, P Strother, P B Vidal, M I Williams, G Cowan, S George, M G Green, A Kurup, C E Marker, P McGrath, T R McMahon, S Ricciardi, F Salvatore, I Scott, G Vaitsas, D Brown, C L Davis, J Allison, R J Barlow, J T Boyd, A C Forti, J Fullwood, F Jackson, G D Lafferty, N Savvas, E T Simopoulos, J H Weatherall, A Farbin, A Jawahery, V Lillard, J Olsen, D A Roberts, J R Schieck, G Blaylock, C Dallapiccola, K 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Affiliations

  1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France.

PMID: 11736492 DOI: 10.1103/PhysRevLett.87.241801

Abstract

We present a measurement of the decay amplitudes in B-->J/psiK*(892) channels using 20.7 fb(-1) of data collected at the Upsilon(4S) resonance with the BABAR detector at PEP-II. We measure a P-wave fraction R(perpendicular) = (16.0 +/- 3.2 +/- 1.4)% and a longitudinal polarization fraction (59.7 +/- 2.8 +/- 2.4)%. The measurement of a relative phase that is neither 0 nor pi, phi = 2.50 +/- 0.20 +/-0.08 radians, favors a departure from the factorization hypothesis. Although the decay B-->/psiK(pi) proceeds mainly via K*(892), there is also evidence for K2*(1430) and K(pi) S-wave contributions.

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