# Theory English (Official)

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 Q3-1 Large Hadron Collider (10 points) Please read the general instructions in the separate envelope before you start this problem. In this task, the physics of the particle accelerator LHC (Large Hadron Collider) at CERN is discussed. CERN is the world's largest particle physics laboratory. Its main goal is to get insight into the fundamental laws of nature. Two beams of particles are accelerated to high energies, guided around the accelerator ring by a strong magnetic field and then made to collide with each other. The protons are not spread uniformly around the circumference of the accelerator, but they are clustered in so-called bunches. The resulting particles generated by collisions are observed with large detectors. Some parameters of the LHC can be found in table 1. LHC ring Circumference of ring m Number of bunches per proton beam 2808 Number of protons per bunch Proton beams Energy of protons 7.00 TeV Centre of mass energy 14.0 TeV Table 1: Typical numerical values of relevant LHC parameters. Particle physicists use convenient units for the energy, momentum and mass: The energy is measured in electron volts [ev]. By definition, 1 ev is the amount of energy gained by a particle with elementary charge, e, moved through a potential difference of one volt (1 ev = kg m 2 s 2 ). The momentum is measured in units of ev/c and the mass in units of ev/c 2, where c is the speed of light in vacuum. Since 1 ev is a very small quantity of energy, particle physicists often use MeV (1 MeV = 10 6 ev), GeV (1 GeV = 10 9 ev) or TeV (1 TeV = ev). Part A deals with the acceleration of protons or electrons. Part B is concerned with the identification of particles produced in the collisions at CERN. Part A. LHC accelerator (6 points) Acceleration: Assume that the protons have been accelerated by a voltage V such that their velocity is very close to the speed of light and neglect any energy loss due to radiation or collisions with other particles. A.1 Find the exact expression for the final velocity v of the protons as a function of the accelerating voltage V, and physical constants. 0.7pt A design for a future experiment at CERN plans to use the protons from the LHC and to collide them with electrons which have an energy of 60.0 GeV.

3 Q3-3 A.6 Determine the time T that the protons take to pass through this field. 1.5pt d + - V Figure 1: Sketch of an accelerator module.

4 Q3-4 Part B. Particle Identification (4 points) Time of flight: It is important to identify the high energy particles that are generated in the collision in order to interpret the interaction process. A simple method is to measure the time (t) that a particle with known momentum needs to pass a length l in a so-called Time-of-Flight (ToF) detector. Typical particles which are identified in the detector, together with their masses, are listed in table 2. Particle Mass [MeV/c 2 ] Deuteron 1876 Proton 938 charged Kaon 494 charged Pion 140 Electron Table 2: Particles and their masses. mass m momentum p y x time t 1 length l time t 2 Figure 2: Schematic view of a time-of-flight detector. B.1 Express the particle mass m in terms of of the momentum p, the flight length l and the flight time t, assuming that particles have elementary charge e and travel with velocity close to c on straight tracks in the ToF detector and that they travel perpendicular to the two detection planes (see figure 2). 0.8pt

5 Q3-5 B.2 Calculate the minimal length l of a ToF detector that allows to safely distinguish a charged kaon from a charged pion, given both their momenta are measured to be 1.00 GeV/c. For a good separation it is required that the difference in the time-of-flight is larger than three times the time resolution of the detector. The typical resolution of a ToF detector is 150 ps (1 ps = s). 0.7pt In the following, particles produced in a typical LHC detector are identified in a two stage detector consisting of a tracking detector and a ToF detector. Figure 3 shows the setup in the plane transverse and longitudinal to the proton beams. Both detectors are tubes surrounding the interaction region with the beam passing in the middle of the tubes. The tracking detector measures the trajectory of a charged particle which passes through a magnetic field whose direction is parallel to the proton beams. The radius r of the trajectory allows one to determine the transverse momentum p T of the particle. Since the collision time is known the ToF detector only needs one tube to measure the flight time (time between the collision and the detection in the ToF tube). This ToF tube is situated just outside the tracking chamber. For this task you may assume that all particles created by the collision travel perpendicular to the proton beams, which means that the created particles have no momentum along the direction of the proton beams.

6 Q3-6 y x (2) y z (2) (1) (4) (4) (3) R (1) (5) (3) (5) (4) transverse plane (1) cross section of the longitudinal view at the center of the tube along the beamline (1) - ToF tube (2) - track (3) - collision point (4) - tracking tube (5) - proton beams - magnetic field Figure 3 : Experimental setup for particle identification with a tracking chamber and a ToF detector. Both detectors are tubes surrounding the collision point in the middle. Left : transverse view perpendicular to the beamline. Right : longitudinal view parallel to the beam line. The particle is travelling perpendicular to the beam line. B.3 Express the particle mass in terms of the magnetic flux density B, the radius R of the ToF tube, fundamental constants and the measured quantities: radius r of the track and time-of-flight t. 1.7pt We detected four particles and want to identify them. The magnetic flux density in the tracking detector was B = T. The radius R of the ToF tube was 3.70 m. Here are the measurements (1 ns = 10 9 s): Particle Radius of the trajectory r [m] Time of flight t [ns] A B C D

7 Q3-7 B.4 Identify the four particles by calculating their mass. 0.8pt

### Problem 3 : Solution/marking scheme Large Hadron Collider (10 points)

Problem 3 : Solution/marking sheme Large Hadron Collider 10 points) Part A. LHC Aelerator 6 points) A1 0.7 pt) Find the exat expression for the final veloity v of the protons as a funtion of the aelerating

### The ALICE Experiment Introduction to relativistic heavy ion collisions

The ALICE Experiment Introduction to relativistic heavy ion collisions 13.06.2012 Introduction to relativistic heay ion collisions Anna Eichhorn 1 Facts about ALICE ALICE A Large Ion Collider Experiment

### Fall Quarter 2010 UCSB Physics 225A & UCSD Physics 214 Homework 1

Fall Quarter 2010 UCSB Physics 225A & UCSD Physics 214 Homework 1 Problem 2 has nothing to do with what we have done in class. It introduces somewhat strange coordinates called rapidity and pseudorapidity

### Particle physics experiments

Particle physics experiments Particle physics experiments: collide particles to produce new particles reveal their internal structure and laws of their interactions by observing regularities, measuring

### The ATLAS Experiment and the CERN Large Hadron Collider

The ATLAS Experiment and the CERN Large Hadron Collider HEP101-2 April 5, 2010 A. T. Goshaw Duke University 1 HEP 101 Plan March 29: Introduction and basic HEP terminology March 30: Special LHC event:

### Why do we accelerate particles?

Why do we accelerate particles? (1) To take existing objects apart 1803 J. Dalton s indivisible atom atoms of one element can combine with atoms of other element to make compounds, e.g. water is made of

### Transverse dynamics Selected topics. Erik Adli, University of Oslo, August 2016, v2.21

Transverse dynamics Selected topics Erik Adli, University of Oslo, August 2016, Erik.Adli@fys.uio.no, v2.21 Dispersion So far, we have studied particles with reference momentum p = p 0. A dipole field

### Chapter 4. Accelerators and collider experiments. 4.1 Particle accelerators: motivations

Chapter 4 Accelerators and collider experiments This chapter gives an introduction to particle accelerators and detectors as well as to data analysis tools relevant in this context. This involves the definition

### Modern Accelerators for High Energy Physics

Modern Accelerators for High Energy Physics 1. Types of collider beams 2. The Tevatron 3. HERA electron proton collider 4. The physics from colliders 5. Large Hadron Collider 6. Electron Colliders A.V.

### Appendix A2. Particle Accelerators and Detectors The Large Hadron Collider (LHC) in Geneva, Switzerland on the Border of France.

Appendix A. Particle Accelerators and Detectors The Large Hadron Collider (LHC) in Geneva, Switzerland on the Border of France. Prepared by: Arash Akbari-Sharbaf Why Build Accelerators? Probe deeper From

### 3 Charged Particle Motion in a Magnetic Field

3 Charged Particle Motion in a Magnetic Field When you have completed the Particle Annihilation section and read all the text (especially section 2.2), click the Next button in the Particle Annihilation

### A brief history of accelerators, detectors and experiments: (See Chapter 14 and Appendix H in Rolnick.)

Physics 557 Lecture 7 A brief history of accelerators, detectors and experiments: (See Chapter 14 and Appendix H in Rolnick.) First came the study of the debris from cosmic rays (the God-given particle

### Particle Physics Columbia Science Honors Program

Particle Physics Columbia Science Honors Program Week 10: LHC and Experiments April 8th, 2017 Inês Ochoa, Nevis Labs, Columbia University 1 Course Policies Attendance: Up to four excused absences (two

### 2.24 Simulation Study of K L Beam: K L Rates and Background Ilya Larin Department of Physics Old Dominion University Norfolk, VA 23529, U.S.A.

2.24 Simulation Study of K L Beam: K L Rates and Background Ilya Larin Department of Physics Old Dominion University Norfolk, VA 23529, U.S.A. Abstract We report our simulation results for K L -beam and

### Information about the T9 beam line and experimental facilities

Information about the T9 beam line and experimental facilities The incoming proton beam from the PS accelerator impinges on the North target and thus produces the particles for the T9 beam line. The collisions

### Alignment of the ATLAS Inner Detector

Alignment of the ATLAS Inner Detector Roland Härtel - MPI für Physik on behalf of the ATLAS inner detector alignment group Outline: LHC / ATLAS / Inner Detector Alignment approaches Results Large Hadron

### Chapter 23 Electric Potential. Copyright 2009 Pearson Education, Inc.

Chapter 23 Electric Potential Units of Chapter 23 Electric Potential Energy and Potential Difference Relation between Electric Potential and Electric Field Electric Potential Due to Point Charges Potential

### Relativity II. Home Work Solutions

Chapter 2 Relativity II. Home Work Solutions 2.1 Problem 2.4 (In the text book) A charged particle moves along a straight line in a uniform electric field E with a speed v. If the motion and the electric

### (a) (b) Fig. 1 - The LEP/LHC tunnel map and (b) the CERN accelerator system.

Introduction One of the main events in the field of particle physics at the beginning of the next century will be the construction of the Large Hadron Collider (LHC). This machine will be installed into

### Large Hadron Collider at CERN

Large Hadron Collider at CERN Steve Playfer 27km circumference depth 70-140m University of Edinburgh 15th Novemebr 2008 17.03.2010 Status of the LHC - Steve Playfer 1 17.03.2010 Status of the LHC - Steve

### EQUIPMENT Beta spectrometer, vacuum pump, Cs-137 source, Geiger-Muller (G-M) tube, scalar

Modern Physics Laboratory Beta Spectroscopy Experiment In this experiment, electrons emitted as a result of the radioactive beta decay of Cs-137 are measured as a function of their momentum by deflecting

### Modern Physics Laboratory Beta Spectroscopy Experiment

Modern Physics Laboratory Beta Spectroscopy Experiment Josh Diamond and John Cummings Fall 2009 Abstract In this experiment, electrons emitted as a result of the radioactive beta decay of 137 55 Cs are

### Lectures on accelerator physics

Lectures on accelerator physics Lecture 3 and 4: Examples Examples of accelerators 1 Rutherford s Scattering (1909) Particle Beam Target Detector 2 Results 3 Did Rutherford get the Nobel Prize for this?

### PHYS 3446 Lecture #15

PHYS 3446 Lecture #15 Monday, Oct. 30, 2006 Dr. 1. Particle Accelerators Electro-static Accelerators Cyclotron Accelerators Synchrotron Accelerators 2. Elementary Particle Properties Forces and their relative

### Section 4 : Accelerators

Section 4 : Accelerators In addition to their critical role in the evolution of nuclear science, nuclear particle accelerators have become an essential tool in both industry and medicine. Table 4.1 summarizes

### Engines of Discovery

Engines of Discovery R.S. Orr Department of Physics University of Toronto Berkley 1930 1 MeV Geneva 20089 14 TeV Birth of Particle Physics and Accelerators 1909 Geiger/Marsden MeV a backscattering - Manchester

### Accelerators Ideal Case

Accelerators Ideal Case Goal of an accelerator: increase energy of CHARGED par:cles Increase energy ΔE = r 2 F dr = q ( E + v B)d r The par:cle trajectory direc:on dr parallel to v ΔE = increase of energy

### Muon reconstruction performance in ATLAS at Run-2

2 Muon reconstruction performance in ATLAS at Run-2 Hannah Herde on behalf of the ATLAS Collaboration Brandeis University (US) E-mail: hannah.herde@cern.ch ATL-PHYS-PROC-205-2 5 October 205 The ATLAS muon

### Introduction to Accelerator Physics Part 1

Introduction to Accelerator Physics Part 1 Pedro Castro / Accelerator Physics Group (MPY) Introduction to Accelerator Physics DESY, 27th July 2015 Pedro Castro / MPY Introduction to Accelerator Physics

### Workshop: The hidden beauty of bubble chambers

Workshop: The hidden beauty of bubble chambers INTRODUCTION There is an immediately pleasing aesthetic to bubble chamber pictures. This beauty has been widely recognized: This workshop, however, explores

### Accelerator Physics, BAU, First Semester, (Saed Dababneh).

Accelerator Physics 501503746 Course web http://nuclear.bau.edu.jo/accelerators/ edu or http://nuclear.dababneh.com/accelerators/ com/accelerators/ 1 Grading Mid-term Exam 25% Projects 25% Final Exam 50%

### Historical developments. of particle acceleration

Historical developments of particle acceleration Y.Papaphilippou N. Catalan-Lasheras USPAS, Cornell University, Ithaca, NY 20 th June 1 st July 2005 1 Outline Principles of Linear Acceleration Electrostatic

### Physics 610. Adv Particle Physics. April 7, 2014

Physics 610 Adv Particle Physics April 7, 2014 Accelerators History Two Principles Electrostatic Cockcroft-Walton Van de Graaff and tandem Van de Graaff Transformers Cyclotron Betatron Linear Induction

### Accelerators and Colliders

Accelerators and Colliders References Robert Mann: An introduction to particle physics and the standard model Tao Han, Collider Phenomenology, http://arxiv.org/abs/hep-ph/0508097 Particle Data Group, (J.

### MEASURING THE LIFETIME OF THE MUON

B6-1 MEASURING THE LIFETIME OF THE MUON Last Revised September 19, 2006 QUESTION TO BE INVESTIGATED What is the lifetime τ of a muon? INTRODUCTION AND THEORY Muons are a member of a group of particles

### Introduction to Accelerators. Scientific Tools for High Energy Physics and Synchrotron Radiation Research

Introduction to Accelerators. Scientific Tools for High Energy Physics and Synchrotron Radiation Research Pedro Castro Introduction to Particle Accelerators DESY, July 2010 What you will see Pedro Castro

### Future prospects for the measurement of direct photons at the LHC

Future prospects for the measurement of direct photons at the LHC David Joffe on behalf of the and CMS Collaborations Southern Methodist University Department of Physics, 75275 Dallas, Texas, USA DOI:

### v = E B FXA 2008 UNIT G485 Module Magnetic Fields BQv = EQ THE MASS SPECTROMETER

UNIT G485 Module 1 5.1.2 Magnetic Fields 11 Thus, in order for the particle to suffer NO DEFLECTION and so exit the device at Y : From which : MAGNETIC FORCE UP = ELECTRIC FORCE DOWN BQv = EQ THE MASS

### The reaction p(e,e'p)π 0 to calibrate the Forward and the Large Angle Electromagnetic Shower Calorimeters

The reaction p(e,e'p)π 0 to calibrate the Forward and the Large Angle Electromagnetic Shower Calorimeters M.Battaglieri, M.Anghinolfi, P.Corvisiero, A.Longhi, M.Ripani, M.Taiuti Istituto Nazionale di Fisica

### Overview of LHC Accelerator

Overview of LHC Accelerator Mike Syphers UT-Austin 1/31/2007 Large Hadron Collider ( LHC ) Outline of Presentation Brief history... Luminosity Magnets Accelerator Layout Major Accelerator Issues U.S. Participation

### arxiv:hep-ex/ v1 15 Oct 2004

arxiv:hep-ex/443v 5 Oct 24 Initial results from the HARP experiment at CERN J.J. Gomez-Cadenas a a IFIC and Departamento de Fisica, Atómica y Nuclear, P.O. Box 2285, E-467 Valencia, Spain Initial results

### JLEIC forward detector design and performance

Jefferson Lab E-mail: ryoshida@jlab.org A major part of the physics program at the Electron-Ion Collider being planned in the US is the exploration of nucleon and nuclear structure. This program means

### Accelerators. The following are extracts from a lecture course at Nikhef (Amsterdam).

Accelerators The following are extracts from a lecture course at Nikhef (Amsterdam). You are not required to know this information for this course, but you will find it interesting as background information

### The HARP Experiment. G. Vidal-Sitjes (INFN-Ferrara) on behalf of the HARP Collaboration

The HARP Experiment (INFN-Ferrara) on behalf of the HARP Collaboration New Views in Particle Physics Outline Goals for a HAdRon Production experiment Example: KEK PS Neutrino beam-line Detector layout

### Introduction Introduction

1 Introduction This book is an introduction to the theory of charged particle acceleration. It has two primary roles: 1.A unified, programmed summary of the principles underlying all charged particle accelerators.

### Search for Dark Matter with LHC proton Beam Dump

Search for Dark Matter with LHC proton Beam Dump Ashok Kumar a, Archana Sharma b* a Delhi University, Delhi, India b CERN, Geneva, Switzerland Abstract Dark Matter (DM) comprising particles in the mass

### LHC & ATLAS. The largest particle physics experiment in the world. Vincent Hedberg - Lund University 1

LHC & ATLAS The largest particle physics experiment in the world 1 CERN A laboratory for the world Torsten Gustavson CERN was founded in 1954 There were 12 member states in the beginning. 2 OBSERVERS:

### D 276 (Total 1 mark) 3. Which of the following is not a valid conclusion from Rutherford s alpha particle scattering experiments?

Particle Physics 197 1. The number of neutrons in a nucleus of 79 Au is A 79 B 118 C 197 D 276 (Total 1 mark) 2. The derivation of the formula 2 p E k = could include the expression 2m A B 1 mv 2 = p 2

### A beam line for schools

A beam line for schools Great things can happen when high schools get involved with cutting edge science, and that s exactly what CERN is proposing with its new beam line for schools competition, which

### Accelerator development

Future Colliders Stewart T. Boogert John Adams Institute at Royal Holloway Office : Wilson Building (RHUL) W251 Email : sboogert@pp.rhul.ac.uk Telephone : 01784 414062 Lectures aims High energy physics

### Force Due to Magnetic Field You will use

Force Due to Magnetic Field You will use Units: 1 N = 1C(m/s) (T) A magnetic field of one tesla is very powerful magnetic field. Sometimes it may be convenient to use the gauss, which is equal to 1/10,000

### Heavy-Ion Physics Lecture 1: QCD and the Quark-Gluon Plasma

Heavy-Ion Physics Lecture 1: QCD and the Quark-Gluon Plasma Professor David Evans The University of Birmingham Nuclear Physics Summer School Queen s University, Belfast XX th August 2017 Outline of Lectures

### ATLAS EXPERIMENT : HOW THE DATA FLOWS. (Trigger, Computing, and Data Analysis)

ATLAS EXPERIMENT : HOW THE DATA FLOWS (Trigger, Computing, and Data Analysis) In order to process large volumes of data within nanosecond timescales, the trigger system is designed to select interesting

### PoS(Vertex 2016)004. ATLAS IBL operational experience

ATLAS IBL operational experience High Energy Accelerator Research Organization (KEK) - Oho Tsukuba Ibaraki, 0-080, Japan E-mail: yosuke.takubo@kek.jp The Insertable B-Layer (IBL) is the inner most pixel

### LHC Physics. Christopher S. Hill University of Bristol. Warwick Week 12 th - 16 th April, 2010

LHC Physics Christopher S. Hill University of Bristol Warwick Week 12 th - 16 th April, 2010 What these lectures will hopefully be A review of the reasons why will built the LHC, maybe a bit on how it

### Particle Accelerators. The Electrostatic Accelerators

Particle Accelerators The Electrostatic Accelerators References K. Wille The Physics of Particle Accelerator, Oxford University press pag 1-29 H. Wiedeman Particle accelerator physics volume 1, chapter

### The CNGS neutrino beam

10th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD06) 1-5 October 2006 Siena, Italy ν The CNGS neutrino beam G. Sirri INFN Bologna CNGS (CERN Neutrinos to Gran Sasso) The project

### Modern physics 1 Chapter 13

Modern physics 1 Chapter 13 13. Particle physics Particle studied within the ATLAS-project CERN In the beginning of 1930, it seemed that all the physics fundaments was placed within the new areas of elementary

### UNIT 15: NUCLEUS SF027 1

is defined as the central core of an atom that is positively charged and contains protons and neutrons. UNIT 5: NUCLUS SF07 Neutron lectron 5. Nuclear Structure nucleus of an atom is made up of protons

### SLS at the Paul Scherrer Institute (PSI), Villigen, Switzerland

SLS at the Paul Scherrer Institute (PSI), Villigen, Switzerland Michael Böge 1 SLS Team at PSI Michael Böge 2 Layout of the SLS Linac, Transferlines Booster Storage Ring (SR) Beamlines and Insertion Devices

### Three particles, a, b, and c, enter a magnetic field as shown in the figure. What can you say about the charge on each particle?

1 Three particles, a, b, and c, enter a magnetic field as shown in the figure. What can you say about the charge on each particle? 6 Determine the magnitude and direction of the force on an electron traveling

### The Why, What, and How? of the Higgs Boson

Modern Physics The Why, What, and How? of the Higgs Boson Sean Yeager University of Portland 10 April 2015 Outline Review of the Standard Model Review of Symmetries Symmetries in the Standard Model The

### 3. Synchrotrons. Synchrotron Basics

1 3. Synchrotrons Synchrotron Basics What you will learn about 2 Overview of a Synchrotron Source Losing & Replenishing Electrons Storage Ring and Magnetic Lattice Synchrotron Radiation Flux, Brilliance

### Performance of muon and tau identification at ATLAS

ATL-PHYS-PROC-22-3 22/2/22 Performance of muon and tau identification at ATLAS On behalf of the ATLAS Collaboration University of Oregon E-mail: mansoora.shamim@cern.ch Charged leptons play an important

Hadronic Calorimetry Urs Langenegger (Paul Scherrer Institute) Fall 2014 ALEPH hadronic showers compensation detector effects neutron detection Hadronic showers simulations 50 GeV proton into segmented

### The Fast Interaction Trigger Upgrade for ALICE

Chicago State University, Chicago, USA E-mail: edmundo.garcia@csu.edu On Behalf of the ALICE Collaboration The ALICE Collaboration is preparing a major detector upgrade for the second LHC long shutdown

### Identified charged hadron production in pp, p Pb and Pb Pb collisions at LHC energies with ALICE

EPJ Web of Conferences 95, 04075 (2015) DOI: 10.1051/ epjconf/ 20159504075 C Owned by the authors, published by EDP Sciences, 2015 Identified charged hadron production in pp, p Pb and Pb Pb collisions

### An ion follows a circular path in a uniform magnetic field. Which single change decreases the radius of the path?

T5-1 [237 marks] 1. A circuit is formed by connecting a resistor between the terminals of a battery of electromotive force (emf) 6 V. The battery has internal resistance. Which statement is correct when

### Part II Particle and Nuclear Physics Examples Sheet 1

T. Potter Lent/Easter Terms 2017 Part II Particle and Nuclear Physics Examples Sheet 1 Matter and Forces 1. (A) Explain the meaning of the terms quark, lepton, hadron, nucleus and boson as used in the

### ALICE Detector Status and Commissioning

ALICE Detector Status and Commissioning Hans-Åke Gustafsson, For the ALICE Collaboration CERN, Geneva, Switzerland and Lund University, Sweden Abstract. The Large Hadron Collider (LHC) will start operation

### b Physics Prospects For The LHCb Experiment Thomas Ruf for the LHCb Collaboration Introduction Detector Status Physics Program

b Physics Prospects For The LHCb Experiment Thomas Ruf for the LHCb Collaboration Introduction Detector Status Physics Program b Primary goal of the LHCb Experiment Search for New Physics contributions

### Results from HARP. Malcolm Ellis On behalf of the HARP collaboration DPF Meeting Riverside, August 2004

Results from HARP Malcolm Ellis On behalf of the HARP collaboration DPF Meeting Riverside, August 2004 The HAdRon Production Experiment 124 physicists 24 institutes2 Physics Goals Input for precise calculation

### C A SPECTROMETER FOR MEASURING INELASTIC SECONDARIES FROM 200 GeV Ie, p-p COLLISIONS. T. O. White National Accelerator Laboratory

C.2-68-99 A SPECTROMETER FOR MEASURING INELASTIC SECONDARIES FROM 200 GeV Ie, p-p COLLISIONS T. O. White National Accelerator Laboratory One experiment which will no doubt be a part of the early experimental

### Particle accelerators

Particle accelerators Charged particles can be accelerated by an electric field. Colliders produce head-on collisions which are much more energetic than hitting a fixed target. The center of mass energy

### IPBI-TN June 30, 2004

Spray Electron Beam for Tests of Linear Collider Forward Calorimeter Detectors in SLAC End Station A R. Arnold UMass Amherst, Amherst MA 01003 T. Fieguth Stanford Linear Accelerator Center Menlo Park,

### Introduction to Longitudinal Beam Dynamics

Introduction to Longitudinal Beam Dynamics B.J. Holzer CERN, Geneva, Switzerland Abstract This chapter gives an overview of the longitudinal dynamics of the particles in an accelerator and, closely related

### Preliminary Design of m + m - Higgs Factory Machine-Detector Interface

Fermilab Accelerator Physics Center Preliminary Design of m + m - Higgs Factory Machine-Detector Interface Nikolai Mokhov Y. Alexahin, V. Kashikhin, S. Striganov, I. Tropin, A. Zlobin Fermilab Higgs Factory

### arxiv:hep-ex/ v1 19 Jun 2004

arxiv:hep-ex/4653v 9 Jun 24 First physics results from the HARP experiment at CERN A. Cervera Villanueva University of Geneva, Switzerland The first physics results of the HARP experiment are presented.

### Strange Particle Production in p-p collisions at ALICE

Strange Particle Production in p-p collisions at ALICE Rabia Aslam Supervisors: Jean-Pierre Revol and Adam Jacholkowski CERN Summer Student 2011 November 17, 2011 Abstract In this project, the production

### The First Results of K2K long-baseline Neutrino Oscillation Experiment

The First Results of K2K long-baseline Neutrino Oscillation Experiment Taku Ishida, representing K2K collaboration arxiv:hep-ex/0008047v1 23 Aug 2000 Institute for Particle and Nuclear Studies(IPNS) High

### Central Meson Production in ALICE

Central Meson Production in ALICE ALICE detector Selection of central diffractive single/double gap events Central Meson production in pp-collisions at s = 7 TeV Analysis of f0(980) and f2(1270) production

### Laser Wakefield Acceleration. Presented by Derek Schaeffer For Advanced Optics, Physics 545 Professor Sergio Mendes

Laser Wakefield Acceleration Pioneering Studies Conducted by the Lasers, Optical Accelerator Systems Integrated Studies (L OASIS) Program at Lawrence Berkeley National Laboratory Presented by Derek Schaeffer

### NA62: Ultra-Rare Kaon Decays

NA62: Ultra-Rare Kaon Decays Phil Rubin George Mason University For the NA62 Collaboration November 10, 2011 The primary goal of the experiment is to reconstruct more than 100 K + π + ν ν events, over

### Particle Identification of the LHCb detector

HCP 2005 Particle Identification of the LHCb detector Ann.Van.Lysebetten@cern.ch on behalf of the LHCb collaboration CERN 5th July 2005 The LHCb experiment : introduction precision measurements of CP violation

### What is a heavy ion? Accelerator terminology: Any ion with A>4, Anything heavier than α-particle

Outline Introduction to Relativistic Heavy Ion Collisions and Heavy Ion Colliders. Production of particles with high transverse momentum. Collective Elliptic Flow Global Observables Particle Physics with

### Results From The HARP Experiment

Results From The HARP Experiment Lara Howlett University of Sheffield Overview of HARP and forward analysis Al analysis for K2K experiment Be analysis for MiniBooNE experiment Motivations Systematic study

### Beam Diagnostics Lecture 3. Measuring Complex Accelerator Parameters Uli Raich CERN AB-BI

Beam Diagnostics Lecture 3 Measuring Complex Accelerator Parameters Uli Raich CERN AB-BI Contents of lecture 3 Some examples of measurements done with the instruments explained during the last 2 lectures

### S1: Particle Equations of Motion S1A: Introduction: The Lorentz Force Equation

S1: Particle Equations of Motion S1A: Introduction: The Lorentz Force Equation The Lorentz force equation of a charged particle is given by (MKS Units):... particle mass, charge... particle coordinate...

### Study of the MPD detector performance in pp collisions at NICA

Study of the MPD detector performance in pp collisions at NICA Katherin Shtejer Díaz On behalf of the MPD Collaboration VBLHEP, JINR, Russia NICA Days 2017, November 6-10 Introduction Phase diagram of

### HARP (Hadron Production) Experiment at CERN

HARP (Hadron Production) Experiment at CERN 2nd Summer School On Particle Accelerators And Detectors 18-24 Sep 2006, Bodrum, Turkey Aysel Kayιş Topaksu Çukurova Üniversitesi, ADANA Outline The Physics

### arxiv: v1 [hep-ex] 18 Apr 2011

arxiv:.35v [hep-ex] Apr Exclusive π + π Production at the LHC with Forward Proton Tagging R. Staszewski a, P. Lebiedowicz a, M. Trzebiński a, J. Chwastowski b,a and A. Szczurek a,c a Institute of Nuclear

Physics at Hadron Colliders Part 2 Standard Model Physics Test of Quantum Chromodynamics - Jet production - W/Z production - Production of Top quarks Precision measurements -W mass - Top-quark mass QCD

### The Bohr Model of Hydrogen

The Bohr Model of Hydrogen Suppose you wanted to identify and measure the energy high energy photons. One way to do this is to make a calorimeter. The CMS experiment s electromagnetic calorimeter is made

### The LHC The Large Hadron Collider and ATLAS

INTRODUCTION The LHC The Large Hadron Collider and ATLAS The accelerator is located at CERN, in a tunnel at a depth of around 100m beneath the French-Swiss border near Geneva. The protons used in the experiments

### CHARGED PARTICLE MOTION IN CONSTANT AND UNIFORM ELECTROMAGNETIC FIELDS

CHARGED PARTICLE MOTION IN CONSTANT AND UNIFORM ELECTROMAGNETIC FIELDS In this and in the following two chapters we investigate the motion of charged particles in the presence of electric and magnetic

Hadronic Calorimetry Urs Langenegger (Paul Scherrer Institute) Fall 2015 ALEPH Hadronic showers Compensation Neutron detection Hadronic showers simulations 50 GeV proton into segmented iron (simulation)

### The Big-Bang Machine. Stefan Spanier Physics and Astronomy University of Tennessee, Knoxville. 25 February 2017 Stefan Spanier, The Big Bang Machine

The Big-Bang Machine Stefan Spanier Physics and Astronomy University of Tennessee, Knoxville 1 Accelerator = Microscope Length to be resolved L L 1/Particle Energy Pocket Electron-Accelerator - Energy

### Practice Exam 1. Necessary Constants and Equations: Electric force (Coulomb s Law): Electric field due to a point charge:

Practice Exam 1 Necessary Constants and Equations: Electric force (Coulomb s Law): Electric field due to a point charge: Electric potential due to a point charge: Electric potential energy: Capacitor energy: