The Mikheyev Smirnov Wolfenstein Effect
{"Image DocumentName": "The Mikheyev Smirnov Wolfenstein Effect", "Image ImageDescription": "P Spring 2003 L15. Richard Kass. The Mikheyev Smirnov Wolfenstein Effect. Neutrino oscillations can be enhanced by traveling through matter. Origin of enhancement is very similar to a birefringent medium where different. polarizations of light have different indexes of refraction. When polarized light passes. through a birefringent medium the relative phase of each polarization component. evolves differently and the plane of polarization rotates. The neutrino index of refraction depends on its scattering amplitude with matter: sun is made of protons, neutrons, electrons \u00aeup/down quarks, electrons. All neutrinos can interact through neutral currents equally. Only electron neutrino can interact through CC scattering: ne+ e- \u00ae ne + e- The refractive index seen by electron neutrinos is different than the one seen. by muon and tau neutrinos. The MSW effect gives for the probability of an electron neutrino produced at t=0. to be detected as a muon neutrino: The MSW effect is. very similar to. K-short regeneration M&S Here Ne is the electron density. For travel through vacuum Ne=0 and the MSW result reduces to our previous result.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}