Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
... BaBar Collaboration; + view all
(2004)
Search for B-0 decays to invisible final states and to nu(nu)over-bar gamma.
PHYS REV LETT
, 93
(9)
, Article 091802. 10.1103/PhysRevLett.93.091802.
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Abstract
We establish upper limits on branching fractions for B-0 decays to final states where the decay products are purely invisible (i.e., no observable final state particles) and for B-0 decays to v(v) over bar γ. Within the standard model, these decays have branching fractions that are below current experimental sensitivity, but various models of physics beyond the standard model predict significant contributions from these channels. Using 88.5x10(6) B(B) over bar pairs collected at the Y(4S) resonance by the BABAR experiment at the PEP-II e(+)e(-) storage ring at the Stanford Linear Accelerator Center, we establish upper limits at the 90% confidence level of 22x10(-5) for the branching fraction of B-0-->invisible and 4.7x10(-5) for the branching fraction of B-0-->v(v) over bar γ.
Type: | Article |
---|---|
Title: | Search for B-0 decays to invisible final states and to nu(nu)over-bar gamma |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.93.091802 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.091802 |
Language: | English |
Additional information: | The American Physical Society |
Keywords: | LARGE EXTRA DIMENSIONS, SINGLET NEUTRINO, MODELS |
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/1303679 |
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