Documents about High Energy Physics

  • 21 Pages

    CROP_1_Cosmic_Ray_History_2002

    UNL, WEEK 1

    Excerpt: ... A History of Cosmic Rays "If we knew what we were doing, it wouldn't be called research" - Albert Einstein The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln A History of Cosmic Rays The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln A History of Cosmic Rays The Fantastic Four 1996 Marvel Comics The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln A History of Cosmic Rays The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln A History of Cosmic Rays The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln A History of Cosmic Rays Special issue Magnificent Cosmos March 1998 Cosmic Rays at the Energy Frontier James W. Cronin, Thomas K. Gaisser and Simon P. Swordy The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln A History of ...

  • 23 Pages

    CROP_Ionizing_Detectors

    UNL, WEEK 3

    Excerpt: ... Ionization Detectors Henri Becquerel (1852-1908) received the 1903 Nobel Prize in Physics for the discovery of natural radioactivity. Wrapped photographic plate showed clear silhouettes, when developed, of the uranium salt samples stored atop it. 1896 While studying photographic images of various fluorescent and phosphorescent materials, Becquerel finds potassium-uranyl sulfate spontaneously emits radiation capable of penetrating thick opaque black paper aluminum plates copper plates Exhibited by all known compounds of uranium (phosphorescent or not) & metallic uranium itself. The Cosmic Ray Observatory Project High Energy Physics Group The University of Nebraska-Lincoln Ionization Detectors 1930s plates coated with thick photographic emulsions (gelatins carrying silver bromide crystals) carried up mountains or in balloons clearly trace cosmic ray tracks through their depth when developed light produces spots of submicroscopic silver grains a fast charged particle can leave a trail of Ag grains 1/ ...

  • 3 Pages

    bib1

    Fayetteville State University, PHY 5846

    Excerpt: ... Search Request: a=regler Long View BOOK - Record 4 of 4 Entries Florida State University - Screen 1 of 1 - Title: Data analysis techniques for high-energy physics exp ...

  • 1 Pages

    set13

    Michigan State University, PHY 492

    Excerpt: ... Physics 492 Homework XIII, due Fri Apr 30 Reading: Chapter 12 Problems: 1. Experiments in high-energy physics observe collisions between elementary particles which have been accelerated in a charged-particle accelerator to relativistic speeds. The products of the collisions are observed and measured in particle detectors. Read about particle detectors in Perkins, Introduction to High Energy Physics , or Frauenfelder and Henley, Subatomic Physics, and write a one-page explanation of one kind of particle detector. Your explanation should include how the detector is constructed, how it is used, and the physical principles of how it works. (The books are on reserve in Physics Library.) 2. Williams, Problem 12.14. 3. Williams, Problem 12.16. Note: Your term paper is due on Monday, April 26. ...

  • 1 Pages

    muon-questions

    Rutgers, PHYSICS 389

    Excerpt: ... Proper lifetime of the muon Preparatory questions The muon is an elementary particle and one of the fundamental constituents of matter. Muons are very similar to electrons, apart from the fact that a muon has about 200 times more mass than an electron. Muon decay is governed by the charged weak interaction. Take a textbook on particle physics, for example D.H. Perkins, Introduction to High Energy Physics , to study muon decay in detail. 1. Describe how a scintillation counter works, starting from the entrance of an energetic charged particle into a scintillator, and ending with an electrical pulse at the output of the photomultiplier. 2. Describe the function and operation of each of the following elements of the measurement apparatus a) discriminator b) coincidence unit c) scaler d) Time to amplitude converter e) multichannel analyzer 3. How many `accidentals' (i.e. pulses from unrelated particles) will you observe during one hour of measurement from two scintillation counters if their accidental event rates ...

  • 1 Pages

    abs058

    Stanford, C 0805263

    Excerpt: ... March 2008 Neutrino mass in radiatively-broken scale-invariant models Robert Foot,1, Archil Kobakhidze,1, Kristian L. McDonald,2, and Raymond R.Volkas1, 1 School of Physics, Research Centre for High Energy Physics , University of Melbourne, Victoria 3010, Australia. 2 Theory Group, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T2A3, Canada. Abstract Scale invariance may be a classical symmetry which is broken radiatively. This provides a simple way to stabilize the scale of electroweak symmetry breaking against radiative corrections. The simplest phenomenologically successful model of this type involves the addition of one real scalar field to the standard model. In this minimal model the electroweak Higgs can be interpreted as the pseudo-Goldstone boson of broken scale invariance. We study the possible origin of neutrino mass in such models, both at tree-level and radiatively. We comment on the possibility of scale invariantce beyond the electroweak scale. Email: rfoot@unimelb.edu.au Email: arc ...

  • 1 Pages

    muon-questions

    Rutgers, PHYSICS 389

    Excerpt: ... Proper lifetime of the muon Preparatory questions The muon is an elementary particle and one of the fundamental constituents of matter. Muons are very similar to electrons, apart from the fact that a muon has about 200 times more mass than an electron. Muon decay is governed by the charged weak interaction. Take a textbook on particle physics, for example D.H. Perkins, Introduction to High Energy Physics , to study muon decay in detail. 1. Describe how a scintillation counter works, starting from the entrance of an energetic charged particle into a scintillator, and ending with an electrical pulse at the output of the photomultiplier. 2. Describe the function and operation of each of the following elements of the measurement apparatus a) discriminator b) coincidence unit c) scaler d) Time to amplitude converter e) multichannel analyzer 3. How many `accidentals' (i.e. pulses from unrelated particles) will you observe during one hour of measurement from two scintillation counters if their accidental event rates ...

  • 1 Pages

    physics_185_general_information

    Concordia Chicago, P 185

    Excerpt: ... Physics 185 M. Oreglia Winter 2003 Physics 185 General Information Instructor: Office: Phone: email: Mark J. Oreglia HEP ( High Energy Physics ) 215 702-7446 m-oreglia@uchicago.edu To find Prof. Oreglia, enter the Enrico Fermi Institute at 5620 Ellis Av, go down the stairs, bearing right, then follow the red squares to HEP. Take the elevator to Floor 2. Lecture Time and Place: MWF 11:30-12:20, KPTC 120 Discussion Sections (and quizzes!): Wednesdays, 4:30 - 5:20 PM, location TBD. * REQUIRED * NB: Do not take this course if you cannot attend the discussion sessions. Laboratory Sessions: None! Textbooks: All are available at the campus bookstore: Required: Marion and Thorton, Classical Dynamics of Particles and Systems, 4th edition Recommended: Schey, Div, Curl, Grad, and all that ...

  • 5 Pages

    vc100_long_eps07abstracts

    Illinois Tech, MICE 100

    Excerpt: ... K. Long, February 17, 2009 EPS07 abstracts: The international Muon Ionisation Cooling Experiment Collaboration contributions to the International Europhysics Conference on High Energy Physics The North of England at Manchester Thursday 19th July to Wednesday 25th July 2007 Title MICE: the international Muon Ionisation Cooling Experiment Abstract Abstract Session Detectors and data handling Accelerator R&D and technology Contact A. Blondel Presentaion & paper The MICE cooling channel Abstract Accelerator R&D and technology Accelerator R&D and technology Detectors and data handling Detectors and data handling Detectors and data handling M. Zisman Emittance measurement in MICE Abstract J. Cobb The MICE scintillating-fibre tracker Abstract A. Bross The design of the time-of-flight system for MICE The design of the beam-line Cherenkov for MICE Abstract M. Bonesini Abstract L. Cremaldi Abstract submitted to HEP2007 International Europhysics Conference on High Energy Physics , The North of E ...

  • ass0201

    Cornell, P 636

    Excerpt: ... YOUR NAME: P 636 DAILY ASSIGNMENT Homework Homework #2, due Tu 2/6/07: Ex. 1.2.3, 1.2.4, 1.2.5. Reading for 2/6: Lec. 1.3 A-E (sorry, it is too wordy in some places.) Please send a QUESTION to Chris Henley Weds. evening. Announcement NEXT lecture, Tu 2/6, I must end early; Ill try to start 5 min early, and will lecture 1hr without a break. I will ask you to form pairs (or groups) and to send QUESTIONs from these groups for the next two lectures (2/8 and 2/13), so the last 10 min may be used for this and possibly to cover the T.Q. 1.3. Seminar Reminder: TODAY Thurs. 2/1, Clark 700 4:30 PM, LASSP Seminar: Aaron Leanhardt High energy physics with ultracold atoms and molecules. (No LASSP seminars next week.) Term paper reminder Reminder: Topic proposal due Th 2/15, please sign up TODAY for chats. (Note: Im out of town Th 2/8- Sun 2/10, unavail. for chats 2/8-2/11.) Please turn over out 2/1/07, for Tu 2/6/07 T. Q. 1.3 In answers to T.Q., cite the equation, gure, or table number ...

  • 32 Pages

    663-5

    Oregon, PH 663

    Excerpt: ... Physics 663 Particle Physics Phenomenology April 25, 2002 Physics 663, lecture 5 1 Detectors Interaction of Charged Particles and Radiation with Matter Ionization loss of charged particles Coulomb scattering Radiation loss by electrons Absorption of -rays in Matter Detectors of Single Charged Particles Proportional counters, Spark and streamer chambers, Drift chambers, Scintillation counters, Cerenkov counters, Solid-state counters, Bubble chambers Shower Detectors and Calorimeters Electromagnetic-shower detectors Hadron-shower detectors References: Donald H. Perkins, Introduction to High Energy Physics , Fourth Edition Physics 663, lecture 5 2 Spatial and Temporal Resolutions Physics 663, lecture 5 3 Pictorial Detectors Cloud chamber condensation on track Emulsions enhanced silver content, reveals (after development) particle tracks with extreme precision Streamer chambers ionization of gas generates light through re ...

  • 3 Pages

    HW12soln

    SUNY Stony Brook, PHY 313

    Excerpt: ... PHY-313/CEI544 Solutions to HW # 12 1. Why does an electron-positron collider have more useful energy for the production of new particles than a proton-proton collider of the same energy? An electron and its antiparticle, the positron, are truly elem ...

  • 2 Pages

    HEP205

    CSB-SJU, PHYSICS 365

    Excerpt: ... sts. Nevertheless, the unknown really is all around us. For example, the mechanism of high temperature superconductivity (material we easily made twenty years ago) remains a mystery today. Introduction to High Energy Physics by Perkins (1982) QC793.2.P47 The Quantum Theory of Fields by Weinberg (1995) QC174.45.W45 Dreams of a Final Theory by Weinberg (1992) QC21.2.W428 The God Particle : If the Universe is the Answer, What is the Question? by Lederman (1993) QC793.5.B62.L43 QED : the Strange Theory of Light and Matter by Feynman (1985) QC793.5.P422.F48 Beamtimes and Lifetimes : the World of High Energy Physicists by Traweek (1988) QC774.A2.T73 References An Introduction to the Standard Model of Particle Physics by Cottingham (1998) QC794.6.S75 Introduction to Nuclear and Particle Physics by Das (1994) QC776.D37 Femtophysics : a Short Course on Particle Physics by Bowler (1990) QC793.2.B68 The Experimental Foundations of Particle Physics by Cahn (1989) QC793.2.C34 Modern Elementary Particle Physics by ...

  • 12 Pages

    slac-pub-3332

    Stanford, PUBS 3250

    Excerpt: ... TL components. Every effort was made to reduce the man-power cost to build, debug, and maintain the processor. FORTRAN simulations have been done of each execution unit which have made a valuable contribution to the designing and in debugging. For example, the Add/Subtraction execution unit with over 200 MS1 circuits, had only one design error when it was debugged, and this error was just one signal that had the opposite polarity in the hardware due to 2 an erroh: in the simulation. The cost of the processor, power supply, and chassis is expected to be under US$ 10,000 excluding the cost of memory. 2.1 MEMORY Memory is one of the most important aspects of any computer or processor. In the high energy physics held, both the size of analysis programs and the quantity of data per event have grown so that the memory space needed is measured in units of Megabytes. The memory of the 3081/E is implemented using the less dense but faster static memory circuits. Today they have 55 nsec maximum access and cycle time, ...

  • 17 Pages

    Lecture0422

    Michigan State University, ISP 209

    Excerpt: ... The Standard Model is not quite so simple, but in some ways even simpler. 4/22/04 ISP 209 - 14B 25 Nuclear Technology Atom bomb (fission of U or Pu) Fission reactors The sun Nuclear medicine a limited technology fusion reactions Hydrogen bomb (fusion of deuterium and tritium) Fusion reactors dont exist today. E=mc2 4/22/04 ISP 209 - 14B 26 13 High energy physics No applications in technology; but there are spin-offs, such as particle accelerators, large-scale computing, and the World Wide Web . Today, high-energy physics is research for the sake of pure knowledge. invented at CERN 4/22/04 ISP 209 - 14B 27 CERN laboratory site To study the smallest particles of matter requires the largest laboratory in the world. 4/22/04 ISP 209 - 14B 28 14 What are the limits of science? What are the limits of technology? 4/22/04 ISP 209 - 14B 29 space travel UFOs What are the limits of science? wormholes 4/22/04 ISP 209 - 14B 30 15 The human desire ...

  • 1 Pages

    ps10

    Cornell, PHYS 651

    Excerpt: ... Physics 651 Problem Set 10 (due 11/17/03) Read Chapter 5. This is a long chapter. As a rst reading, focus on unpolarized cross sections only. 1. Provide details to the derivation of Eq.(5.14). This formula is very important to high energy physics . 2. Provide details to the derivation of Eq.(5.91). This formula is very important to atomic physics. Obtain the limiting Thomson cross section. 3. Problem 5.1 4. Problem 5.4(a) 1 ...

  • 1 Pages

    RSO1

    Toledo, PHY 357

    Excerpt: ... SubAtomic Physics Nuclear Physics Understand the Atomic Nucleus in terms of the interaction of Protons and Neutrons. An enormously important subject; both in order to understand matter on Earth and in Stars and the Universe, and for technological reasons Particle Physics/ High Energy Physics Understand Reality at its most Basic Level Experiment Theory Micro Level Consituents Interactions Why these Consituents and Interactions? Why this Space-Time Macro Level History of Cosmos ...