Limit on the production of a new vector boson in e + e − → Uγ, U → π + π − with the KLOE experiment
A. Anastasi; D. Babusci; G. Bencivenni; M. Berłowski; C. Bloise; F. Bossi; P. Branchini; A. Budano · 2016 · Physics Letters B
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract
The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motivates searches in the mass range below 1 GeV. We present a search for such a particle, the dark photon, in e + e - U, U + -based on 28 million e + e - + - events collected at DA NE by the KLOE experiment. The + -production by initial-state radiation compensates for a loss of sensitivity of previous KLOE U e + e -, + -searches due to the small branching ratios in the - resonance region. We found no evidence for a signal and set a limit at 90% CL on the mixing strength between the photon and the
Abstract by A. Anastasi; D. Babusci; G. Bencivenni; M. Berłowski; C. Bloise; F. Bossi; P. Branchini; A. Budano, Physics Letters B (2016) — licensed CC BY 4.0.
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Metadata source: OpenAlex · DOI 10.1016/j.physletb.2016.04.019