Long term items

From GlueXWiki
Revision as of 15:17, 22 September 2021 by Zisis (Talk | contribs)

Jump to: navigation, search
  1. FCAL: [orphan item] It has been noticed that the pi0 mass shifts when the LED pulser runs at high rate. This is still not understood. See Log Entry 3595928 and references. Several runs have been taken in raw mode. These runs exhibit the shift in pi0 mass with LED running at 1 kHz. There is a need to analyze these to try to determine the cause. Susan will undertake this task.
    1. 50634 - FCAL Green LED: 1kHz, 29 V, Livetime is 9%, 1.7 M events
    2. 50635 - FCAL Violet LED: 1kHz, 22 V, Livetime is 9%, 1.4 M events
    3. 50636 - FCAL Blue LED: 1kHz, 15 V, Livetime is 9%, 1.5 M events
  2. Hadronic split off studies (orphaned at present)
  3. Covariance matrices for photons; need pull distributions (Regina could help); add these to best practices page [Mark]
  4. Spike at BCAL z=220 cm, due to noise [Karthik]
  5. Neutrons: revisit this work; could look at neutron efficiency in hyperon channels, etc. [Tegan et al.]