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IceCube!!. IceCube has been designed as a discovery instrument with improved :. telescope area detection volume energy measurement of secondary muons and electromagnetic showers identification of neutrino flavor angular resolution. The IceCube Collaboration.

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Presentation Transcript
slide1

IceCube!!

IceCube has been designed as a discovery instrument with improved:

telescope area

detection volume

energy measurement of secondary muons and electromagnetic showers

identification of neutrino flavor

angular resolution

slide2

The IceCube Collaboration

Institutions: 11 US, 8 European and 1 Japanese

  • Bartol Research Institute, University of Delaware
  • BUGH Wuppertal, Germany
  • Universite Libre de Bruxelles, Brussels, Belgium
  • CTSPS, Clark-Atlanta University, Atlanta USA
  • DESY-Zeuthen, Zeuthen, Germany
  • Institute for Advanced Study, Princeton, USA
  • Lawrence Berkeley National Laboratory, Berkeley, USA
  • Department of Physics, Southern University and A\&M College, Baton Rouge, LA, USA
  • Dept. of Physics, UC Berkeley, USA
  • Institute of Physics, University of Mainz, Mainz, Germany
  • Dept. of Physics, University of Maryland, USA
  • University of Mons-Hainaut, Mons, Belgium
  • Dept. of Physics and Astronomy, University of Pennsylvania, Philadelphia, USA
  • Dept. of Astronomy, Dept. of Physics, SSEC, University of Wisconsin, Madison, USA
  • Physics Department, University of Wisconsin, River Falls, USA
  • Division of High Energy Physics, Uppsala University, Uppsala, Sweden
  • Dept. of Physics, SCFAB, Stockholm University, Stockholm, Sweden
  • University of Alabama
  • Vrije Universiteit Brussel, Brussel, Belgium
  • Chiba University, Japan

Also AMANDA

only IceCube

slide3

Grid

North

100 m

AMANDA

South Pole

SPASE-2

Dome

Skiway

IceCube:Top View

80 strings

60 modules/string

Volume 1 km3

Depth 1400-2400 m

Counting

House

slide4

IceTop

AMANDA

South Pole

IceCube

Skiway

80 Strings

4800 PMT

1400 m

2400 m

slide5

- flavors and energy ranges

Filled area: particle id, angle, energy

Shaded area: energy and angle.

slide6

µ-events in IceCube

Eµ=6 PeV

Eµ=10 TeV

AMANDA-II

1 km

Measure energy by counting the number of fired PMT.

(This is a very simple but robust method)

slide7

Cascade event

ne + N --> e- + X

The length of the actual cascade, ≈ 10 m, is small compared to the spacing of sensors

1 PeV ≈ 500 m diameter

Fully active calorimeter with linear energy resolution

Sensitivity for diffused flux about the same as for muons

E = 375 TeV

slide8

“Double Bang”

t + N --> t- + X

t + X

  • E << 1 PeV: Single cascade
  • (2 cascades coincide)
  • E ≈ 1 PeV: Double bang
  • E >> 1 PeV: Second cascade + tau track
slide9

1 pp core AGN (Nellen)

2 p core AGN

Stecker & Salomon)

3 p „maximum model“

(Mannheim et al.)

4 p blazar jets (Mannh)

5 p AGN

(Rachen & Biermann)

6 pp AGN (Mannheim)

7 GRB

(Waxman & Bahcall)

8 TD (Sigl)

Diffuse Fluxes: Predictions and Limits

Mannheim & Learned,

2000

Macro

Baikal

Amanda

IceCube

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