22 Particle and Astrophysics

22 Particle and Astrophysics - Physics 13 Lecture 22 Prof....

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Unformatted text preview: Physics 13 Lecture 22 Prof. H. Gallagher 1 Plan for Today 1. Logistics 2. Particle Physics Standard model wrapup summary of experimental techniques and discoveries particle physics kinematic calculations Neutrinos 3. Astrophysics 4. Course Evaluations HW 10 Extra Credit Projects The Final Final Grades Physics 13 Lecture 22 Prof. H. Gallagher Student Talks We have the following talks scheduled for the final lecture: Dylan and Scott Fabric of the Cosmos Matt O., Rami, and Matt B Warped Passages Chris McKay Physics of Superheroes It would be great if you could aim for about 7 min / person. Prof. Jose Juan Blanco-Pillado and myself will be available at 10:00 am tomorrow in the Brown and Brew for questions. If you have powerpoint or PDF slides please send them to me by noon Thursday. 2 Physics 13 Lecture 22 Prof. H. Gallagher HW 10 and Grades HW 10 is due Monday, Dec. 8 I will have office hours as usual next week, and am available at other times by appointment. I will be at Fermilab from Dec. 11-15 but will do my best to answer e-mail questions. 3 Grading: In previous years the grade thresholds have been: Score Grade 96 A+ 92 A 88 A- 84 B+ 80 B 76 B- 71 C+ 65 C Grade thresholds may be lowered but not raised. Physics 13 Lecture 22 Prof. H. Gallagher Final Exam The final is on Thursday, Dec. 18 at 12 noon. It will be held in our normal room. While the bulletin lists the final time as 12-2, I would like to have it go from 12-3. Speak up now if that is a problem!! Other extra credit papers/projects are due at the final. A practice final and solution will be available shortly. A review session will be held on Tues Dec. 16. Time and room TBD. 4 Physics 13 Lecture 22 Prof. H. Gallagher 5 Standard Model Overview Two different kinds of matter, which comes in 3 generations: quarks: feel the strong force, fermions leptons: do not feel the strong force, fermions And Force Carrier particles, gauge bosons, associated with the 4 forces of nature. Strong (gluon) Weak (W and Z bosons) Electromagnetic (photon) Gravitational (gravitino ?) In addition there is anti-matter as predicted by the Dirac equation! -1 -1/3 +2/3 0 charge Physics 13 Lecture 22 Prof. H. Gallagher 6 How do we know all this? 75 years of advances in theory, mathematics, and technology (particularly fast electronics and the computer) have made possible many discoveries which have often been able to confirm many crucial predictions of these theories, and rule out many others!!!...
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This note was uploaded on 10/19/2009 for the course PHY 13 taught by Professor Garyr.goldstein during the Fall '04 term at Tufts.

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22 Particle and Astrophysics - Physics 13 Lecture 22 Prof....

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