Search for Muonic Dark Forces at BABAR
نویسندگان
چکیده
منابع مشابه
Search for dark photon production at BABAR
We present a search for a dark photon, a new massive vector boson interacting weakly with Standard Model particles, using data collected with the BABAR detector. No statistically significant deviations from the Standard Model predictions are seen, and 90% confidence level upper limits on the mixing strength between the photon and dark photon are set at the level of 10−4 − 10−3 for dark photon m...
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We present the results of a search for a dark photon decaying to e + e − or µ + µ − in the BABAR detector [1]. We find no evidence for such a dark pho-ton and set upper limits on the dark mixing as a function mass, tightening the constraints on the parameter space of several dark sector theories. The notion of dark matter was introduced over 80 years ago by Zwicky [2]. In the intervening years,...
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One of the most intriguing puzzles in hadron spectroscopy are the numerous charmonium-like states observed in the last decade, including charged states that are manifestly exotic. Over the years, the experiment BABAR has extensively studied those in B meson decays, initial state radiation processes and two photon reactions. We report in this paper new and additional studies on some of those sta...
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The results of searches for the strange pentaquark states, Θ5(1540) , Ξ5(1860) −− and Ξ5(1860) 0 in data recorded by the BABAR experiment are presented. We search for these three states inclusively in 123.4 fb of ee annihilation data produced at the PEP-II asymmetric storage rings; we find no evidence for their production in any physics process, and set limits on their production rates that are...
متن کاملSearch for a dark photon in e(+)e(-) collisions at BABAR.
Dark sectors charged under a new Abelian interaction have recently received much attention in the context of dark matter models. These models introduce a light new mediator, the so-called dark photon (A^{'}), connecting the dark sector to the standard model. We present a search for a dark photon in the reaction e^{+}e^{-}→γA^{'}, A^{'}→e^{+}e^{-}, μ^{+}μ^{-} using 514 fb^{-1} of data collected...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2017
ISSN: 2100-014X
DOI: 10.1051/epjconf/201714102005