Dark Matter Experimental Direct Detection Summary Javier Tiffenberg - - PowerPoint PPT Presentation

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Dark Matter Experimental Direct Detection Summary Javier Tiffenberg - - PowerPoint PPT Presentation

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Dark Matter Experimental Direct Detection Summary Javier Tiffenberg Fermi National Laboratory June 20, 2018 1 51st Annual Users Meeting June 20, 2018 Fermilab DM - Direct Detection landscape for 2018+ Standard WIMP Nuclear recoil CDMS, LZ

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SLIDE 1

Dark Matter

Experimental Direct Detection Summary

Javier Tiffenberg

Fermi National Laboratory

June 20, 2018

1 51st Annual Users Meeting June 20, 2018

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SLIDE 2

Fermilab DM - Direct Detection landscape for 2018+

A’

e e SM SM

Standard WIMP T eV keV MeV GeV meV eV

CDMS, CubeSat, SENSEI

Light DM + light mediators Electron recoil Nuclear recoil Bosonic DM: axion, dark ph.

CONVERSION/ABSORPTION CDMS, LZ, SENSEI CDMS, LZ ADMX SCATTERING μeV

Fermilab has a strong paricipation in the three G2 experimets

◮ ADMX, CDMS & LZ

Broad program covering a wide spectrum of DM candidates

2 51st Annual Users Meeting June 20, 2018

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SLIDE 3

LZ: giant Xe Time Projection Chamber

Lots of mass - 7 tonnes in TPC, 5.6 tonnes fiducial D494 3” PMTs in TPC Extensive internal and external calibration program

3 51st Annual Users Meeting June 20, 2018

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SLIDE 4

LZ: giant Xe Time Projection Chamber

Project on schedule: TPC installation Spring-Summer 2019

◮ Cryostat already on site.

Arrived May 14.

Cooldown planned for Winter 2019 First physics data - Spring 2020

Fermilab

In charge of cryogenics, xenon circulation and controls Currently hosting cryo and xenon circulation installation planning meeting Strong involvement with full time Scientist and Postdocs

4 51st Annual Users Meeting June 20, 2018

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SLIDE 5

ADMX: superconducting cavity resonator

power frequency

Fermilab is the DOE’s lead Lab for ADMX. Strong group at Fermilab and many R&D project within the lab The experiment is operating at university of Washington with a plan to scan up to 2 ghz over three years.

5 51st Annual Users Meeting June 20, 2018

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SLIDE 6

ADMX: superconducting cavity resonator

2.65 2.7 2.75 2.8 2.85 2.9 eV) µ Axion Mass ( 2 4 6 8 10 12 14 16 18 ), 100% Dark Matter

  • 1

GeV

  • 16

| (10

γ γ a

|g 640 650 660 670 680 690 700 Frequency (MHz)

KSVZ DFSZ

Axion Lineshape Maxwellian N-Body

2 3 4 5 6 7 8 9 10 20 eV) µ Axion Mass ( 1 − 1 2 |

DFSZ

/ g

γ γ a

log |g

KSVZ DFSZ RBF UF ADMX 2013 HAYSTAC This work (N-Body)

  • Phys. Rev. Lett. 120, 151301 (2018).

Did not find an axion, but could have. First measurement at the DFSZ frontier.

6 51st Annual Users Meeting June 20, 2018

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SLIDE 7

Improving Axion detectors

Quantum non-demolition single microwave photon detectors based on superconducting qubits

Aaron Chou, Daniel Bowring (FNAL), David Schuster, Akash Dixit, Ankur Agrawal (UChicago) Photon amplitude is non-destructively mapped onto the qubit’s frequency. Reduce noise levels in axion detectors by evading the quantum back-action.

7 51st Annual Users Meeting June 20, 2018

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SLIDE 8

CDMS: cryogenic crystal

!"# $%# & '($) * +,) -$' . +& //%'0/* 12"+3'4 ) -'$# 56+* $' 7 +,"-'+63'8) * 9') /,"-'$2# "* 3# 65' : # * /; ) 6' <"4

  • #

5"-+,) -' 80'!2# "* 3# 65' !& # 6; * * +,) -'="/,-) 6'. ",) ' >-9) $,+,'+63' 3","& ,) -$'

1

SuperCDMS SNOLAB

Will provide superb sensitivity to low mass WIMPs with Ge and Si operated in both HV and iZIP modes

  • One of three experiments in

U.S. “suite” of Generation 2 dark matter experiments

  • Expected to begin operation in

early 2020 and run for ~5 years

  • Facility designed for future

upgrade to reach neutrino floor

iZIP 10 cm X 3.8 cm

SNOLAB Ladder Lab “future home”

  • [

/ ]

  • [

]

  • [

]

ν ν PRD 95, 082002 (2017)

8 51st Annual Users Meeting June 20, 2018

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SLIDE 9

CDMS: cryogenic crystal

2

Early science with single-charge sensitive detectors

SNOLAB Ladder Lab “future home” Surface running

  • f prototype Si

device constrains dark photons and electron- scattering dark matter

Laser calibration data

SuperCDMS recently demonstrated first HV device that measures single e/h pairs.

arXiv: 1804.10697

9 51st Annual Users Meeting June 20, 2018

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SLIDE 10

CDMS: cryogenic crystal

3

SuperCDMS at Fermilab

SNOLAB Ladder Lab “future home”

Detector control and readout card Calibration system prototype at Lab G

SuperCDMS cleanroom in Lab G

  • FNAL continuing 20 years of involvement with SuperCDMS with

major roles in G2 project:

  • Cryogenic design
  • Warm electronics design and fabrication
  • Calibration system design
  • Infrastructure and Integration for whole experiment
  • Lab-G is home-base for SuperCDMS efforts at FNAL; will

commission cryogenic and calibration systems here.

  • Northwestern cryogenic testing facility (NEXUS) to be installed in

MINOS near detector hall

  • Allows low background testing of “beyond G2” detectors
  • Installation to take place this summer
  • Developed in collaboration with FNAL SuperCDMS group and

with support from FNAL detector R&D funds

10 51st Annual Users Meeting June 20, 2018

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SLIDE 11

CubeStat: X-ray detector in space

cubeSat for detecting the decay of dark matter in our own galaxy.

3.5 keV lines seen in clusters of galaxies Bulbul et al 2014. it may come from 7 keV sterile neutrino DM decay. Plan: Build a cubesat and look for this signal in our galaxy. LDRD 2018. PI: S. Timpone.

11 51st Annual Users Meeting June 20, 2018

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SLIDE 12

SENSEI: silicon Skipper-CCDs

Techology developed at the Lab through LDRD award First dedicated experiment looking for DM-electron interactions Fully funded: 10g & 100g design/construction started.

◮ Grant from Heising-Simons Foundation technical support from Fermilab

  • 5
  • 4
  • 3
  • 2
  • 1

1 2 3 4 5

measured charge in pixel [e-]

  • 5
  • 4
  • 3
  • 2
  • 1

1 2 3 4 5

measured charge in pixel [e-]

Standard CCD mode: charge in each pixel is measured once New Skipper CCD: charge in each pixel is measured multiple times Readout-noise: 3.5 e RMS Readout-noise: 0.06 e RMS 12 51st Annual Users Meeting June 20, 2018

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SLIDE 13

SENSEI: expected sensitivity

Light Dark Photon

  • χ []

σ []

  • ≪
  • =(α/)

≪

Heavy Dark Photon

  • χ []

σ []

  • =

= χ

13 51st Annual Users Meeting June 20, 2018

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SLIDE 14

SENSEI commissioning run at surface: arXiv:1804.00088

First direct-detection constraints between ∼500 keV to 4 MeV Explored 3 orders of magnitude of large-xs DM candidates using data from an engineering surface run (tiny exposure: 0.02 g-dat)

14 51st Annual Users Meeting June 20, 2018

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SLIDE 15

Fermilab DM - Direct Detection landscape for 2018+

A’

e e SM SM

Standard WIMP T eV keV MeV GeV meV eV

CDMS, CubeSat, SENSEI

Light DM + light mediators Electron recoil Nuclear recoil Bosonic DM: axion, dark ph.

CONVERSION/ABSORPTION CDMS, LZ, SENSEI CDMS, LZ ADMX SCATTERING μeV

Fermilab has a strong paricipation in the three G2 experimets

◮ ADMX, CDMS & LZ

Broad program covering a wide spectrum of DM candidates

15 51st Annual Users Meeting June 20, 2018