Observation and polarization measurements of B+/- -->phiK1 +/- and B +/- -->phiK2

With the full BABAR data sample of 465 x 10(6) B(over)B pairs, we observe the decays B+/- -->phiK_(1)(1270) +/- and B +/- -->phiK*_(2)(1430)+/-. We measure the branching fractions (6.1+/-1.6+/-1.1) x 10(-6) and (8.4+/-1.8+/-1.0) x 10(-6) and the fractions of longitudinal polarization 0.46 (+0....

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2008-10, Vol.101 (16), p.161801-161801
Main Authors: Aubert, B, Bona, M, Karyotakis, Y, Lees, J P, Poireau, V, Prencipe, E, Prudent, X, Tisserand, V, Garra Tico, J, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, G S, Battaglia, M, Brown, D N, Cahn, R N, Jacobsen, R G, Kerth, L T, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Osipenkov, I L, Ronan, M T, Tackmann, K, Tanabe, T, Hawkes, C M, Soni, N, Watson, A T, Koch, H, Schroeder, T, Walker, D, Asgeirsson, D J, Fulsom, B G, Hearty, C, Mattison, T S, McKenna, J A, Barrett, M, Khan, A, Teodorescu, L, Blinov, V E, Bukin, A D, Buzykaev, A R, Druzhinin, V P, Golubev, V B, Onuchin, A P, Serednyakov, S I, Skovpen, Yu I, Solodov, E P, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, A J, Lund, P, Mandelkern, M, Martin, E C, Stoker, D P, Abachi, S, Buchanan, C, Gary, J W, Liu, F, Long, O, Shen, B C, Vitug, G M, Yasin, Z, Zhang, L, Sharma, V, Campagnari, C, Hong, T M, Kovalskyi, D, Mazur, M A, Richman, J D, Beck, T W, Eisner, A M, Flacco, C J, Heusch, C A, Kroseberg, J, Lockman, W S, Schalk, T, Schumm, B A, Seiden, A, Wang, L, Wilson, M G, Winstrom, L O, Cheng, C H, Doll, D A, Echenard, B, Fang, F, Hitlin, D G, Narsky, I, Piatenko, T, Porter, F C, Andreassen, R, Mancinelli, G, Meadows, B T
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:With the full BABAR data sample of 465 x 10(6) B(over)B pairs, we observe the decays B+/- -->phiK_(1)(1270) +/- and B +/- -->phiK*_(2)(1430)+/-. We measure the branching fractions (6.1+/-1.6+/-1.1) x 10(-6) and (8.4+/-1.8+/-1.0) x 10(-6) and the fractions of longitudinal polarization 0.46 (+0.12+0.06) _(-0.13-0.07) and 0.80(+0.09)_(-0.10)+/-0.03, respectively. We also report on the B+/- -->phiK*_(0)(1430)+/- decay branching fraction of (7.0+/-1.3+/-0.9) x 10(-6) and several parameters sensitive to CP violation and interference in the above three decays. Upper limits are placed on the B+/- decay rates to final states with phi and K_1(1400)+/-, K*(1410)+/-, K2(1770)+/-, or K_2(1820)+/-. Understanding the observed polarization pattern requires amplitude contributions from an uncertain source.
ISSN:0031-9007