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SUMMARY:#StudentSeminar: Dark Sector searches with the NA64µ experiment
DTSTART;VALUE=DATE-TIME:20260930T130000Z
DTEND;VALUE=DATE-TIME:20260930T143000Z
DTSTAMP;VALUE=DATE-TIME:20260911T130750Z
UID:indico-event-8740@indico.ific.uv.es
DESCRIPTION:The origin of Dark Matter is one of the most pressing question
 s of physics. Despite overwhelming evidence of its existence since the fir
 st postulates around 100 years ago\, its origin and interaction mechanism 
 with visible matter have remained obscure. This has spurred a worldwide ef
 fort using a wide range of complementary techniques to probe Dark Matter m
 odels from the sub-eV to the multi-solar mass range with many interesting 
 examples such as milli-charged particles\, axion-like particles (ALPs)\, h
 eavy neutral leptons (HNLs)\, Light Dark Matter (LDM) or Primordial Black 
 Holes. Among these\, LDM covers the eV to GeV range\, defining a parameter
  space that is accessible in particle accelerator facilities.\n\nNA64 is a
  fixed target experiment at the CERN SPS accelerator using complementary b
 eams searching for Dark Sectors in the LDM mass range with the missing ene
 rgy/momentum technique. In this seminar\, I will focus on the program usin
 g the high intensity M2 muon beam line of the SPS. After the first results
  were obtained with $1.98\\times10^{10}$ muons on target (MOT) collected i
 n 2022\, demonstrating the feasibility of the technique and published in P
 hys. Rev. Lett. 132\, 211803 (2024) and Phys Rev. D 110\, 112015 (2024)\, 
 we have significantly improved the experimental setup and collected more d
 ata in 2023 and 2024. In this seminar\, I will report the results based on
  the data collected in 2023 with $1.2\\times10^{11}$ MOT. With a factor 6 
 more MOT than in 2022\, I will present the experiment prospects in probing
  the parameter space of the well-motivated benchmark LDM models and other 
 scenarios of New Physics below the electroweak scale.\n\nhttps://indico.if
 ic.uv.es/event/8740/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8740/
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