{
  "annotation_id": "b853f707-3a93-49a7-b624-c21a30fc1f6a",
  "date_created": "2026-03-02T18:01:14.969000Z",
  "date_modified": "2026-03-02T18:01:14.969000Z",
  "file_hash": "24b2ad012effc74f21052c3f03b3fa2d38dbc0932cb4e3cc7881c4275cb79a59",
  "private": false,
  "record": {
    "abstract": "The PHENIX muon trigger upgrade adds Level-1 trigger detectors to existing\nforward muon spectrometers and will enhance the ability of the experiment to\npursue a rich program of spin physics in polarized proton collisions at\nsqrt(s)=500GeV. The additional muon trigger detectors and Level-1 trigger\nelectronics will allow the experiment to select high momentum muons from the\ndecay of W-bosons and reject both beam-associated and low-momentum collision\nbackground, enabling the study of quark and antiquark polarization in the\nproton. The muon trigger upgrade will add momentum and timing information to\nthe present muon Level-1 trigger, which only makes use of tracking in the\nPHENIX muon identifier (MuID) panels. Signals from three new resistive plate\nchambers (RPC\u0027s) and re-instrumented planes in the existing muon tracking\n(MuTr) chambers will provide momentum and timing information for the new\nLevel-1 trigger. An RPC timing resolution of ~2ns will permit rejection of beam\nrelated backgrounds.",
    "arxiv_id": "physics/0612018",
    "authors": [
      "John Lajoie"
    ],
    "categories": [
      "physics.ins-det",
      "nucl-ex"
    ],
    "doi": "10.1063/1.2750827",
    "journal_ref": "AIPConf.Proc.915:490-493,2007",
    "title": "The PHENIX Muon Trigger Upgrade",
    "url": "https://arxiv.org/abs/physics/0612018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "226300f9-b75b-46bc-b843-592a60305f89",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}