Search for vector mediator of dark matter production in invisible decay mode

• Main Author: Gardikiotis, Antonis
• Other Authors: Γαρδικιώτης, Αντώνης
• Format: Journal (paper)
• Language: English
• Published: 2018
• Subjects: NA64 collaboration; Vector mediator; Dark matter production; Weizsäcker-Williams approximation; SCOAP3

A search is performed for a new sub-GeV vector boson (A0) mediated production of dark matter (χ) in the fixed-target experiment, NA64, at the CERN SPS. The A0, called dark photon, can be generated in the reaction e−Z → e−ZA0 of 100 GeV electrons dumped against an active target followed by its prompt...