New Frontiers in Physics Richard Lasky – Summer 2010.

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Presentation transcript:

New Frontiers in Physics Richard Lasky – Summer 2010

Higgs Boson beo&feature=related beo&feature=related 5eEQ&feature=related 5eEQ&feature=related

Dark Matter BgE&feature=related BgE&feature=related mWitI&feature=related mWitI&feature=related Vc&feature=related Vc&feature=related

Standard model of the stages of the universe

Big Bang XKM&NR=1 XKM&NR=1

Study of Neutrinos The study of Neutrinos is conducted around the world The atmospheric neutrinos are produced in some of the same reactions as the muons that we have been studying

Jeff Hartnell, IoP/CfFP Meeting Production of Atmospheric Neutrinos

Jeff Hartnell, IoP/CfFP Meeting Super-Kamiokande Located in Kamioka, Japan 50 kT water Cerenkov detector (22.5 kT fiducial) ~12000 PMTs Overburden of 2700 mwe Separate muons and electrons by Cerenkov ring structure

Jeff Hartnell, IoP/CfFP Meeting Opera spectrometer Magnetised Iron Dipoles Drift tubes and RPCs Target: - a wall of Pb/emulsion bricks - planes of orthogonal scintillator strips

Jeff Hartnell, IoP/CfFP Meeting MINOS at Femilab 735 km baseline Two magnetised iron-scintillator tracking calorimeters – Near detector at Fermilab – Far detector at Soudan Underground Lab. Det km Det. 2 Near Detector: 980 tons Far Detector: 5400 tons

Jeff Hartnell, IoP/CfFP Meeting The MINOS Detectors Identical in important features: – 2.54 cm thick steel planes – 1 cm thick scintillator planes – 1.5 T magnetic field Near Detector, 980 tonsFar Detector, 5400 tons

MINOS Detectors Both MINOS detectors are steel- scintillator sampling calorimeters made out of alternating planes of magnetized steel and plastic scintillators. The magnetic field causes the path of a muon produced in a muon neutrino interaction to bend, making it possible to distinguish interactions with neutrinos from those with antineutrinos. This feature of the MINOS detectors allows MINOS to search for CPT- violation with atmospheric neutrinos and antineutrinos.steel scintillatorcalorimetersplasticmagnetic fieldmuon neutrinointeractionCPT- violation

Sudbury Neutrino Observatory (SNO) Sudbury, Ontario, Canada The Sudbury Neutrino Observatory (SNO) results have provided revolutionary insight into the properties of neutrinos and the core of the sun 6800 feet under ground, in INCO's Creighton mine near Sudbury, Ontario, CanadaCreighton mine SNO is a heavy-water Cherenkov detector designed to detect neutrinos produced by fusion reactions in the sun which produce light flashes This light is then detected by an array of 9600 photomultiplier tubes M&feature=related M&feature=related

Summary of Neutrino research Its now 40 years since the first atmospheric neutrinos were detected First detected, via neutrino-induced muons, in 1965 First fully contained events in early 1980s Proton decay experiments

Worm Holes Ams&feature=channel Ams&feature=channel bl4&feature=related bl4&feature=related