UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Search for the decay B+-> K+ v(v)over-bar

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; ... Neal, H; + view all (2005) Search for the decay B+-> K+ v(v)over-bar. PHYS REV LETT , 94 (10) , Article 101801. 10.1103/PhysRevLett.94.101801. Green open access

[thumbnail of 1303705.pdf]
Preview
PDF
1303705.pdf

Download (220kB)

Abstract

We search for the rare flavor-changing neutral-current decay B+ -> K+ v (v) over tilde in a data sample of 82 fb(-1) collected with the BABAR detector at the PEP-II B-factory. Signal events are selected by examining the properties of the system recoiling against either a reconstructed hadronic or semileptonic charged-B decay. Using these two independent samples we obtain a combined limit of B(B+ -> K+ v (v) over bar) < 5.2 x10(-5) at the 90% confidence level. In addition, by selecting for pions rather than kaons, we obtain a limit of B(B+ -> pi(+) v (v) over bar) < 1.0 x 10(-4) using only the hadronic B reconstruction method.

Type: Article
Title: Search for the decay B+-> K+ v(v)over-bar
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.94.101801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.94.101801
Language: English
Additional information: © 2005 The American Physical Society
Keywords: LIMIT
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1303705
Downloads since deposit
51Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item