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Title: Observation of B{yields}{eta}{sup '}K{sup *} and Evidence for B{sup +}{yields}{eta}{sup '}{rho}{sup +}

Abstract

We present an observation of B{yields}{eta}{sup '}K{sup *}. The data sample corresponds to 232x10{sup 6} BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. We measure the branching fractions (in units of 10{sup -6}) B(B{sup 0}{yields}{eta}{sup '}K{sup *0})=3.8{+-}1.1{+-}0.5 and B(B{sup +}{yields}{eta}{sup '}K{sup *+})=4.9{sub -1.7}{sup +1.9}{+-}0.8, where the first error is statistical and the second systematic. A simultaneous fit results in the observation of B{yields}{eta}{sup '}K{sup *} with B(B{yields}{eta}{sup '}K{sup *})=4.1{sub -0.9}{sup +1.0}{+-}0.5. We also search for B{yields}{eta}{sup '}{rho} and {eta}{sup '}f{sub 0}(980)(f{sub 0}{yields}{pi}{sup +}{pi}{sup -}) with results and 90% confidence level upper limits B(B{sup +}{yields}{eta}{sup '}{rho}{sup +})=8.7{sub -2.8-1.3}{sup +3.1+2.3} (<14), B(B{sup 0}{yields}{eta}{sup '}{rho}{sup 0})<3.7, and B(B{sup 0}{yields}{eta}{sup '}f{sub 0}(980)(f{sub 0}{yields}{pi}{sup +}{pi}{sup -}))<1.5. Charge asymmetries in the channels with significant yields are consistent with zero.

Authors:
; ; ; ; ; ; ; ; ;  [1];  [2];  [3]; ; ; ; ;  [4]; ; ;  [5]
  1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  2. Universitat de Barcelona, Facultat de Fisica Departament ECM, E-08028 Barcelona (Spain)
  3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  4. Institute of High Energy Physics, Beijing 100039 (China)
  5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway) (and others)
Publication Date:
OSTI Identifier:
20955415
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevLett.98.051802; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B PLUS MESONS; BRANCHING RATIO; ERRORS; ETA MESONS; F0-980 MESONS; KAONS; PAIR PRODUCTION; PARTICLE DECAY; PIONS MINUS; PIONS PLUS; RHO-770 MESONS; STANFORD LINEAR ACCELERATOR CENTER

Citation Formats

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Ofte, I., and Stugu, B. Observation of B{yields}{eta}{sup '}K{sup *} and Evidence for B{sup +}{yields}{eta}{sup '}{rho}{sup +}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.051802.
Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Ofte, I., & Stugu, B. Observation of B{yields}{eta}{sup '}K{sup *} and Evidence for B{sup +}{yields}{eta}{sup '}{rho}{sup +}. United States. doi:10.1103/PHYSREVLETT.98.051802.
Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J. P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Ofte, I., and Stugu, B. Fri . "Observation of B{yields}{eta}{sup '}K{sup *} and Evidence for B{sup +}{yields}{eta}{sup '}{rho}{sup +}". United States. doi:10.1103/PHYSREVLETT.98.051802.
@article{osti_20955415,
title = {Observation of B{yields}{eta}{sup '}K{sup *} and Evidence for B{sup +}{yields}{eta}{sup '}{rho}{sup +}},
author = {Aubert, B. and Barate, R. and Bona, M. and Boutigny, D. and Couderc, F. and Karyotakis, Y. and Lees, J. P. and Poireau, V. and Tisserand, V. and Zghiche, A. and Grauges, E. and Palano, A. and Chen, J. C. and Qi, N. D. and Rong, G. and Wang, P. and Zhu, Y. S. and Eigen, G. and Ofte, I. and Stugu, B.},
abstractNote = {We present an observation of B{yields}{eta}{sup '}K{sup *}. The data sample corresponds to 232x10{sup 6} BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. We measure the branching fractions (in units of 10{sup -6}) B(B{sup 0}{yields}{eta}{sup '}K{sup *0})=3.8{+-}1.1{+-}0.5 and B(B{sup +}{yields}{eta}{sup '}K{sup *+})=4.9{sub -1.7}{sup +1.9}{+-}0.8, where the first error is statistical and the second systematic. A simultaneous fit results in the observation of B{yields}{eta}{sup '}K{sup *} with B(B{yields}{eta}{sup '}K{sup *})=4.1{sub -0.9}{sup +1.0}{+-}0.5. We also search for B{yields}{eta}{sup '}{rho} and {eta}{sup '}f{sub 0}(980)(f{sub 0}{yields}{pi}{sup +}{pi}{sup -}) with results and 90% confidence level upper limits B(B{sup +}{yields}{eta}{sup '}{rho}{sup +})=8.7{sub -2.8-1.3}{sup +3.1+2.3} (<14), B(B{sup 0}{yields}{eta}{sup '}{rho}{sup 0})<3.7, and B(B{sup 0}{yields}{eta}{sup '}f{sub 0}(980)(f{sub 0}{yields}{pi}{sup +}{pi}{sup -}))<1.5. Charge asymmetries in the channels with significant yields are consistent with zero.},
doi = {10.1103/PHYSREVLETT.98.051802},
journal = {Physical Review Letters},
number = 5,
volume = 98,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}