The SHiP Experiment at CERN Annika Hollnagel - - PowerPoint PPT Presentation

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The SHiP Experiment at CERN Annika Hollnagel - - PowerPoint PPT Presentation

Mar 17, 2024 440 likes •720 views

Physics with SHiP SHiP @CERN Target & Shield SND SND HSD Summary & Outlook The SHiP Experiment at CERN Annika Hollnagel annika.hollnagel@uni-mainz.de Johannes Gutenberg-Universitt Mainz, ETAP on behalf of the SHiP

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

The SHiP Experiment at CERN

Annika Hollnagel

annika.hollnagel@uni-mainz.de Johannes Gutenberg-Universität Mainz, ETAP

  • n behalf of the SHiP Collaboration

JGU Mainz 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SHiP: Search for Hidden Particles

General-Purpose Fixed-Target Facility:

  • Part of the Physics Beyond Colliders program
  • CERN SPS NorthArea:

400 GeV protons ⊲ Search for weakly interacting particles with m ≤ 10 GeV/c2: HNL, dark γ, light scalars, SUSY, axions... ⊲ ντ physics, lepton flavour-violation, direct Dark Matter search...

JGU Mainz 1 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SM & BSM Physics with SHiP

A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case (CERN-SPSC-2015-017)

JGU Mainz 2 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SM & BSM Physics with SHiP

BSM searches:

  • Neutrino masses
  • Matter - antimatter asymmetry in the Universe
  • Non-baryonic Dark Matter

Hidden Sector (HS) portals:

  • Weak interaction of Dark Matter with visible sector?

⊲ Possible mediators: ALPs, Dark γ / Scalars / Pseudoscalars, HNL

Axion-Like Particles (ALPs): Dark Scalars:

JGU Mainz 3 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SM & BSM Physics with SHiP

ν Minimal Standard Model (νMSM):

⊲ Extension of the SM by 3 right-handed Heavy Neutral Leptons (HNL) Light N1:

  • Mass O(10 keV)

⊲ Dark Matter candidate Heavy N2, N3:

  • Mass O(1 GeV)
  • Weakly coupling to SM

⊲ Origin of ν masses ⊲ Baryon asymmetry

  • f the Universe
  • Production:

Decays of D&B mesons (c&b quarks), p bremsstrahlung

  • Detection:

Visible decays into charged leptons, π, γ...

JGU Mainz 4 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SM & BSM Physics with SHiP

ν Minimal Standard Model (νMSM):

⊲ Extension of the SM by 3 right-handed Heavy Neutral Leptons (HNL) Light N1:

  • Mass O(10 keV)

⊲ Dark Matter candidate Heavy N2, N3:

  • Mass O(1 GeV)
  • Weakly coupling to SM

⊲ Origin of ν masses ⊲ Baryon asymmetry

  • f the Universe
  • Production:

Decays of D&B mesons (c&b quarks), p bremsstrahlung

  • Detection:

Visible decays into charged leptons, π, γ...

JGU Mainz 4 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SM & BSM Physics with SHiP

ν physics:

ν flux prod. CC DIS int. at p target in ν target ντ + ντ 2.8 × 1016 53 000 νe + νe 5.1 × 1017 1 360 000 νµ + νµ 6.9 × 1018 3 300 000

  • First observation of ντ interactions
  • ντ & ντ cross section measurement

⊲ Extraction of F4 and F5 structure functions from CC ν – nucleon DIS

  • Test of lepton flavour universality

Other SM / BSM physics:

  • Charm production:

Measurement of the nucleon s & s content ⊲ Test of the NuTev anomaly

  • Direct search for Light Dark Matter (LDM)

JGU Mainz 5 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

The SHiP Experiment

A facility to Search for Hidden Particles at the CERN SPS (CERN-SPSC-2015-016)

JGU Mainz 6 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SHiP at CERN

JGU Mainz 7 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

SHiP at CERN

JGU Mainz 8 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Target & Muon Shield

Target & muon shield: Heavy target (42Mo & 74W):

  • Optimised for heavy meson

production

  • 5 run years (2 × 1020 p.o.t.):

⊲ > 1018 D mesons ⊲ > 1014 B mesons ⊲ > 1016 τ neutrinos

JGU Mainz 9 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Target & Muon Shield

Target & muon shield: Heavy target (42Mo & 74W):

  • Magnetised

hadron stopper: ⊲ ∼ 1.6 T magnetic field ⊲ Air-cooled Al coil

JGU Mainz 9 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Target & Muon Shield

Target & muon shield: Muon shield (∼ 30 m):

  • 1011 µ per 1 s-spill
  • Passive absorber &

active deflection: ⊲ Grain-oriented steel sheets ⊲ ∼ 1.7 T magnetic field ⊲ < 105 µ per spill remaining

JGU Mainz 10 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Scattering and Neutrino Detector

Scattering and Neutrino Detector (SND): OPERA-based concept: ED elements & ECC bricks

  • High-resolution ECC bricks
  • 19 layers of SciFi target trackers
  • Horizontal magnetic field:

1.25 T, active cooling

  • µ ID system:

12 planes of RPCs & iron filters

JGU Mainz 11 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Scattering and Neutrino Detector

Scattering and Neutrino Detector (SND): OPERA-based concept: ED elements & ECC bricks

  • ν physics:

⊲ Measurement of νe, νµ, ντ ⊲ Distinguish ν and ν

  • ν-induced charm production
  • Direct LDM searches

JGU Mainz 11 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Decay volume Evacuated vessel (∼ 50 m):

  • Double-layer steel structure:

⊲ S355JO(J2/K2)W black steel ⊲ 20 mm-thick sheets ⊲ Strengthening ribs

  • End-cap material (tbd):

⊲ Extruded Al

JGU Mainz 12 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Decay volume Evacuated vessel (∼ 50 m):

  • Pressure:

10−3 bar ⊲ Minimal BG from KL, KS, Λ

  • Visible decays of HNL into

charged leptons, π, γ...

JGU Mainz 12 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Surrounding Background Tagger (SBT) LS SBT: Liquid Scintillator SBT

  • Discrimination against µ- and ν-induced BG:

⊲ High efficiency ⊲ Good time resolution

  • Segments:

∼ 120 cm × 30 cm × 80 cm

JGU Mainz 13 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Surrounding Background Tagger (SBT) LS SBT: Liquid Scintillator SBT

  • Inner reflective coating
  • Filled with liquid scintillator (∼ 300 m3):

⊲ LAB + 2 g/l PPO

  • Instrumentation with WOMs (∼ 3 500)
  • SiPM readout

JGU Mainz 13 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Spectrometer Spectrometer & magnet:

  • 5 m × 10 m sensitive area
  • Horizontal magnetic field:

0.15 T ⊲ 1 100 t yoke, 55 t coil mass ⊲ 3 kA current, 1.1 MW dissipation ⊲ Superconducting option?

JGU Mainz 14 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Spectrometer Spectrometer Straw Tracker (SST):

  • 16 000 5 m-long tubes of 2 cm diameter
  • 36 µm-thick PET film

coated with 50 nm Cu & 20 nm Au

  • 4 stations of 4 × 4 stereo layers

⊲ Spatial resolution: 120 µm ⊲ Energy resolution: 1% for p < 50 GeV

JGU Mainz 15 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Spectrometer Timing Detector (TD):

  • Rejection of combinatorial µ BG

⊲ Timing resolution: 100 ps

  • Plastic scintillator bars with

double-sided SiPM readout

  • Multi-gap RPCs

(also interesting for front-cap veto)

JGU Mainz 16 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Spectrometer Electromagnetic Calorimeter (SplitCal):

  • e/γ identification, π0 reconstruction,

γ directional reconstruction

  • 50 plastic scintillator planes with WLS

& double-sided SiPM readout

  • 6 m × 12 m-wide absorber planes
  • 3 layers of high-precision MicroMegas

JGU Mainz 17 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

HS Detector

HS detector: Spectrometer Muon detector:

  • Rejection of combinatorial µ BG
  • µ/π separation
  • 3 stations:

6 m × 12 m sensitive area

  • Plastic scintillator tiles (10 cm × 20 cm)

with direct SiPM readout

  • Passive iron filters

JGU Mainz 18 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Summary & Outlook

JGU Mainz 19 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

Summary & Outlook

SHiP: Part of the CERN Physics Beyond Colliders program

  • Beam Dump Facility:

CERN SPS NA

  • SND:

ντ physics, charm production, LDM scattering...

  • HS detector:

HNL, dark γ, light scalars, SUSY, ALPs...

  • 2019:

CDR

  • 2022:

TDR & Approval

JGU Mainz 20 10.09.2019 The SHiP Experiment

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Physics with SHiP SHiP @CERN Target & µShield SND SND HSD Summary & Outlook

The SHiP Collaboration

CERN Bulgaria:

  • Sofia University

Chile:

  • UTFSM Valparaiso

Denmark:

  • NBI Univ. Copenhagen

France:

  • LPNHE Univ. Paris

Germany:

  • RWTH Aachen
  • HU Berlin
  • Bonn University
  • Hamburg University
  • Forschungsz. Jülich
  • JGU Mainz

Italy:

  • University of Bari
  • INFN & Univ. Bologna
  • INFN Cagliari
  • INFN Ferrara
  • LNGS Assergi
  • INFN Frascati
  • INFN & Univ. Rome

Japan:

  • Aichi University
  • Kobe University
  • Nagoya University
  • Nihon University
  • Toho University

Korea:

  • GNU University
  • KODEL University

Portugal:

  • LIP Coimbra

Russia:

  • JINR Dubna
  • ITEP Moscow
  • INR Moscow
  • LPI Moscow
  • MISIS Moscow
  • SINP-MSU Moscow
  • NRC Moscow
  • MEPhI Moscow
  • INP Moscow State Univ.
  • IHEP Protvino
  • PNPI St. Petersburg
  • Yandex School of Data Analysis

Serbia:

  • Belgrade University

Sweden:

  • Stockholm University
  • Uppsala University

Switzerland:

  • Geneva University
  • EPFL Lausanne
  • Zurich University

Turkey:

  • Ankara University
  • METU Ankara

United Kingdom:

  • Imperial College London
  • Univ. College London
  • Rutherford Appleton Lab.
  • Bristol University
  • Warwick University

Ukraine:

  • TSN Univ. Kyiv

USA:

  • Florida University

JGU Mainz 21 10.09.2019 The SHiP Experiment