English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Proton beam dumps are prolific sources of charged and neutral pions, enablinga powerful technique to search for dark matter, axions, sterile neutrinos,tests of short baseline anomalies, and precision measurements of coherentnucleus scattering neutrinos (CEvNS). The Lujan neutron elastic scatteringcenter at the Los Alamos Neutron Science Center (LANSCE) consists of an800-MeV, short-pulse, 100-kW proton and spallation neutron source where suchsearches are ongoing with the Coherent CAPTAIN Mills (CCM) 10-ton, liquid argondetector. The employment of fast timing coincidence of the beam with thedetector is used to identify signals and reject background. The current beamtime width is 300 ns with an intensity of $3.1 \times 10^{13}$ protons perpulse at 20 Hz. With upgrades to the Proton Storage Ring (PSR), the beam timewidth may be compressed to 30 ns with minimal intensity loss, allowing anincrease in the signal to background (S/B) of more than 100 and an increase inthe sensitivity for dark matter and sterile neutrino searches of an order ofmagnitude. This can be achieved with PSR accelerator upgrades on a time scaleof a few years and at a modest cost.

LANSCE-PSR Short-Pulse Upgrade for Improved Dark Sector Particle Searches with the Coherent Captain Mills Experiment