{
  "id": "2112.09168",
  "version": "v2",
  "published": "2021-12-16T19:29:29.000Z",
  "updated": "2022-01-25T16:44:50.000Z",
  "title": "Towards Probing the Diffuse Supernova Neutrino Background in All Flavors",
  "authors": [
    "Anna M. Suliga",
    "John F. Beacom",
    "Irene Tamborra"
  ],
  "comment": "13 pages, 11 figures, 3 appendices. Minor clarifications added, matches version accepted for publication in Phys. Rev. D",
  "categories": [
    "astro-ph.HE",
    "hep-ph"
  ],
  "abstract": "Fully understanding the average core-collapse supernova requires detecting the diffuse supernova neutrino background (DSNB) in all flavors. While the DSNB $\\bar{\\nu}_e$ flux is near detection, and the DSNB $\\nu_e$ flux has a good upper limit and prospects for improvement, the DSNB $\\nu_x$ (each of $\\nu_\\mu, \\nu_\\tau, \\bar{\\nu}_\\mu, \\bar{\\nu}_\\tau$) flux has a poor limit and heretofore had no clear path for improved sensitivity. We show that a succession of xenon-based dark matter detectors -- XENON1T (completed), XENONnT/LUX-ZEPLIN (running), and DARWIN (proposed) -- can dramatically improve sensitivity to DSNB $\\nu_x$ the neutrino-nucleus coherent scattering channel. XENON1T could match the present sensitivity of $\\sim 10^3 \\; \\mathrm{cm}^{-2}~\\mathrm{s}^{-1}$ per $\\nu_x$ flavor, XENONnT/LUX-ZEPLIN would have linear improvement of sensitivity with exposure, and a long run of DARWIN could reach a flux sensitivity of $\\sim 10 \\; \\mathrm{cm}^{-2}~\\mathrm{s}^{-1}$. Together, these would also contribute to greatly improve bounds on non-standard scenarios. Ultimately, to reach the standard flux range of $\\sim 1 \\; \\mathrm{cm}^{-2}~\\mathrm{s}^{-1}$, even larger exposures will be needed, which we show may be possible with the series of proposed lead-based RES-NOVA detectors.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2022-01-25T16:44:50.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "diffuse supernova neutrino background",
      "sensitivity",
      "average core-collapse supernova",
      "xenon-based dark matter detectors",
      "standard flux range"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}