S. Spanier

activity

20112026

most citedSearch for Invisible Decays of a Dark Photon Produced in e+e- Collisions at BaBar

338 citations · 426 across the 9 of their papers we have counts for

collaborators

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8 papers · 1 filter

hep-ex2025

United States Muon Collider Community White Paper for the European Strategy for Particle Physics Update

A. Abdelhamid, D. Acosta, P. Affleck +301

This document is being submitted to the 2024-2026 European Strategy for Particle Physics Update (ESPPU) process on behalf of the US Muon Collider community, with its preparation co…

hep-ex2018★ 20 cited

Search for a Stable Six-Quark State at BABAR

Bertrand Echenard

Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate…

hep-ex2018★ 14 cited

Observation of the decay $D^{0} \to K^{-} π^{+} e^{+} e^{-}$

BaBar Collaboration, J. P. Lees, others

We report the observation of the rare charm decay $D^{0} \to K^{-} π^{+} e^{+} e^{-}$ , based on $468$ fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at or close to the center-of-mass…

hep-ex2017★ 2 cited

Measurement of the $D^{*} (2010)^{+} - D^{+}$ mass difference

The BaBar Collaboration

We measure the mass difference, $Δ m_{+}$ , between the $D^{*} (2010)^{+}$ and the $D^{+}$ using the decay chain $D^{*} (2010)^{+} \to D^{+} π^{0}$ with $D^{+} \to K^{-} π^{+} π^{+}$ . The data were recorded w…

hep-ex2017★ 338 cited

Search for Invisible Decays of a Dark Photon Produced in e+e- Collisions at BaBar

J. P. Lees

We search for single-photon events in 53 fb^-1 of e+e- collision data collected with the BaBar detector at the PEP-II B-factory. We look for events with a single high-energy photon…

hep-ex2013★ 17 cited

Neutron-Antineutron Oscillations: A Snowmass 2013 White Paper

K. Babu, S. Banerjee, D. V. Baxter +69

This paper summarizes discussions of the theoretical developments and the studies performed by the NNbarX collaboration for the 2013 Snowmass Community Summer Study.

hep-ex2013★ 31 cited

Project X: Physics Opportunities

Andreas S. Kronfeld, Robert S. Tschirhart, Usama Al-Binni +133

Part 2 of "Project X: Accelerator Reference Design, Physics Opportunities, Broader Impacts". In this Part, we outline the particle-physics program that can be achieved with Project…

hep-ex2011★ 4 cited

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

The BABAR Collaboration, J. P. Lees, V. Poireau +384

We report the observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K- with a significance larger than 7 standard deviations based on 471x10^6$ BBbar pairs collected…