APEX: A Prime EXperiment at Jefferson Lab - Test Run Results and Full Run Plans; Update

Conference · Mon Jun 01 00:00:00 EDT 2015 · EPJ Web Conf.

DOI:https://doi.org/10.1051/epjconf/20159601004· OSTI ID:1184627

Beacham, James ^[1]

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1. Ohio University, JLAB

APEX is an experiment at Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA, that searches for a new gauge boson (A') with sub-GeV mass and coupling to ordinary matter of g' ~ (10^-6 - 10⁻²)e. Electrons impinge upon a fixed target of high-Z material. An A' is produced via a process analogous to photon bremsstrahlung, decaying to an e⁺+e⁻ pair. A test run was held in July of 2010, covering m_A' = 175 to 250 MeV and couplings g'/e > 10⁻³. A full run is approved and will cover m_A' ~ 65 to 525 MeV and g'/e > 2.3 x 10⁻⁴, and is expected to occur sometime in 2016 or 2017.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1184627
• Report Number(s): JLAB-PHY-14-1971; DOE/OR/23177-3385
• Journal Information: EPJ Web Conf., Vol. 96; Conference: Dark Matter, Hadron Physics and Fusion Physics (DHF2014), Messina, Italy, September 24-26, 2014
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS