SBND in 10 Minutes Iker Loc de Icaza

SBND in 10 Minutes Iker Loïc de Icaza Astiz On behalf of the SBND collaboration New Perspectives 2019, Fermilab 10 th of June 2019 1

Anomalies at the ~1 e. V 2 scale (not exhaustive) q q Limits on Oscillation x x x x x 10/06/2019 KARMEN NOMAD Bugey ICARUS OPERA Mini. Boo. NE + Sci. Boo. NE MINOS Ice. Cube DANSS (New) Iker de Icaza | New Perspectives 2019 2

The Short Baseline Neutrino program Three Liquid Argon 600 Timem, 476 t Projection 470 m, 89 Chambers. t Located at the Booster Neutrino Beam line in 110 m, 112 Fermilab. t Targe t 10/06/2019 Iker de Icaza | New Perspectives 2019 3

Physics Goals: Neutrino Oscillations Near Detector will see the un-oscillated content of the beam Appearance sensitivity ar. Xiv: 1903. 04608 Far Detector will be able to see a distinctive oscillated signal, at the expected parameters 10/06/2019 Disappearanc e sensitivity Iker de Icaza | New Perspectives 2019 4

Physics Goals: �� -Ar interactions • Due to its close distance to the target, SBND observes the largest flux. • Few month’s worth of data will yield record high statistics. • Over 7 million �� interactions in the span of 3 years: ∼ 4 interactions per minute. • Rich catalogue of ��-nucleus interactions. ar. Xiv: 1903. 04608 10/06/2019 Iker de Icaza | New Perspectives 2019 5

Physics Goals: Beyond the Standard Model SBND (and SBN at large) qualities for a rich program of new exotic searches: Fine calorimetry sampling High flux beam and large ~1 mm special resolution Excellent particle identification High yield photon detection system statistics ar. Xiv: 1903. 04608 v v v v Electronvolt scale sterile neutrino decaying to active neutrinos Large extra dimensions Resonant νμ → νe oscillations Violation of Lorentz and CPT symmetry Sterile neutrinos and altered dispersion relations Heavy neutral leptons Charged current non-standard interactions 10/06/2019 v v v v Dark neutrino sectors Heavy neutrinos and transition magnetic moment Neutrino tridents Millicharged particles Light Dark Matter Neutrinophilic, lepton-number charged scalars Your very well motivated and fancy math loaded theory here Iker de Icaza | New Perspectives 2019 6

The Short Baseline Near Detector Ø Ø 10/06/2019 112 t LAr. TPC 4 x 4 x 5 m 3 active volume Two drift volumes Four Anode Planes Ø 3 wire directions: 0, ± 60◦ Ø 3 mm wire pitch Ø 11, 264 total wires Ø 2 Cathode Planes biased at -100 k. V and fitted with reflector foils Ø Field cage set on the perpendicular side to maintain 500 V/cm field Ø High Voltage. Iker feed-through located at the top of TPC de Icaza | New Perspectives 2019 7

Near Detector Subcomponents Photon Detection System • Behind the wires • 120 8’’ Hamamatsu PMTs • 96 TPB coated • 24 uncoated • 16 ARAPUCAS • 96 light guide bars • Wavelength Shifting foils on the cathode 10/06/2019 Cosmic Ray Taggers • Seven cosmic ray taggers • Each side and an extra on the top • Close to 4�� coverage Iker de Icaza | New Perspectives 2019 8

Photon Detection System Innovations ARAPUCA and XARAPUCA: Using a dichroic filter and a wavelength shifter light gets trapped in a box JINST 11 where it gets collected by C 02004, JINST 13 a C 04026 Si. PM 10/06/2019 Wavelength Shifting Foils: Highly reflecting dielectric foils with an evaporated film of TPB. It greatly increases the light yield, specially from light originating closer to the cathode. Iker de Icaza | New Perspectives 2019 9

The larger context of LAr. TPC Neutrino Physics The Deep Underground Neutrino Experiment (DUNE) Development towards making DUNE directly address by SBND: • Wavelength Shifting Foils • Analysis and reco • DAQ software • Cross sections and ��-Ar software Rhiannon Jones • Photon Detectors interactions • Particle ID software next talk Ryan Lazur next • Cold • Particle generator talk Electronics software 10/06/2019 Iker de Icaza | New Perspectives 2019 10

TPC components already at the lab Cathode foils already at the lab, made by the UK and Brazil Two APAs coupled and fully tested On e. U Sa e y th nd O ne U K The other two APAs already at the lab e n d. O e. U On UK n Sa Two CPAs UK B By th e. U S Four field cage modules Waiting for the Assembly Transportation Fixture Completion in July 10/06/2019 Iker de Icaza | New Perspectives 2019 11

Timeline q Completion of TPC assembly: Fall 2019 q Move of TPC to ND building: Early 2020 q LAr filling start: Summer 2020 q Commissioning: Summer 2020 q Physics data Early 2021 10/06/2019 Iker de Icaza | New Perspectives 2019 12

Summary q SBND is the Near Detector of SBN program, jointly tasked with searching short baseline neutrino oscillations q SBND will record the highest number of �� -Ar interactions, will have the highest statistic on cross-section measurements to date q SBND will test and perfect new technology relevant for DUNE q All the major TPC components are at Fermilab and assembly is ramping up q Steady progress towards physics data in early 2021 10/06/2019 Iker de Icaza | New Perspectives 2019 13

Backup 10/06/2019 Iker de Icaza | New Perspectives 2019 15

Neutrino Oscillations There are three distinct flavours of neutrinos. Each flavour is a mixture of three different masses, each flavour has its own composition. Due to this mass difference, each component propagates differently in space. This means that the composition of neutrinos travelling in space changes, hence there’s a probability of finding it later with another flavour. 10/06/2019 Iker de Icaza | New Perspectives 2019 16

LSND & Mini. Boo. NE Anomaly Phys. Rev. D 64, 112007 (2001) q Phys. Rev. Lett. 121, 221801 10/06/2019 Iker de Icaza | New Perspectives 2019 17

~1 e. Vˆ2 anomalies cont. Reactor Experiments 10/06/2019 Phys. Rev. D, vol. 83, p. 073006, Apr 2011. Gallium Experiments Iker de Icaza | New Perspectives 2019 18