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Particle Physics, 4th Edition

ISBN: 978-1-118-91216-4
478 pages
January 2017
Particle Physics, 4th Edition (1118912160) cover image

Description

An accessible and carefully structured introduction to Particle Physics, including important coverage of the Higgs Boson and recent progress in neutrino physics.

  • Fourth edition of this successful title in the Manchester Physics series
  • Includes information on recent key discoveries including: An account of the discovery of exotic hadrons, byond the simple quark model; Expanded treatments of neutrino physics and CP violation in B-decays; An updated account of ‘physics beyond the standard model’, including the interaction of particle physics with cosmology
  • Additional problems in all chapters, with solutions to selected problems available on the book’s website
  • Advanced material appears in optional starred sections
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Table of Contents

Suggested Short Course Inside Front Cover

Editors’ preface to the Manchester Physics Series xiii

Authors’ preface xv

Notes xvii

1 Some basic concepts 1

1.1 Introduction 1

1.2 Antiparticles 3

1.3 Interactions and Feynman diagrams 9

1.4 Particle exchange 15

1.5 Units and dimensions 19

Problems 1 22

2 Leptons and the weak interaction 24

2.1 Lepton multiplets and lepton numbers 24

2.2 Leptonic weak interactions 31

2.3 Neutrino masses and neutrino mixing 35

Problems 2 50

3 Quarks and hadrons 52

3.1 Quarks 53

3.2 General properties of hadrons 55

3.3 Pions and nucleons 58

3.4 Strange particles, charm and bottom 61

3.5 Short-lived hadrons 66

3.6 Allowed and exotic quantum numbers 72

Problems 3 75

4 Experimental methods 77

4.1 Overview 77

4.2 Accelerators and beams 79

4.3 Particle interactions with matter 86

4.4 Particle detectors 95

4.5 Detector systems and accelerator experiments 112

4.6 Non-accelerator experiments 121

Problems 4 123

5 Space–time symmetries 126

5.1 Translational invariance 127

5.2 Rotational invariance 129

5.3 Parity 135

5.4 Charge conjugation 142

5.5 Positronium 145

5.6 Time reversal 149

Problems 5 153

6 The quark model 155

6.1 Isospin symmetry 156

6.2 The lightest hadrons 162

6.3 The L = 0 heavy quark states 174

6.4 Colour 177

6.5 Charmonium and bottomonium 184

Problems 6 191

7 QCD, jets and gluons 193

7.1 Quantum chromodynamics 193

7.2 Electron–positron annihilation 210

Problems 7 215

8 Quarks and partons 217

8.1 Elastic electron scattering: the size of the proton 217

8.2 Inelastic electron and muon scattering 222

8.3 Inelastic neutrino scattering 231

8.4 Other processes 236

8.5 Current and constituent quarks 243

Problems 8 246

9 Weak interactions: quarks and leptons 248

9.1 Charged current reactions 250

9.2 The third generation 262

Problems 9 274

10 Weak interactions: electroweak unification 276

10.1 Neutral currents and the unified theory 277

10.2 Gauge invariance and the Higgs boson 287

Problems 10 305

11 Discrete symmetries: C, P, CP and CPT 308

11.1 P violation, C violation and CP conservation 308

11.2 CP violation and particle–antiparticle mixing 316

11.3 CP violation in the standard model 340

Problems 11 343

12 Beyond the standard model 346

12.1 Grand unification 347

12.2 Supersymmetry 354

12.3 Strings and things 358

12.4 Particle physics and cosmology 360

12.5 Dirac or Majorana neutrinos? 373

Problems 12 381

A Relativistic kinematics 383

A.1 The Lorentz transformation for energy and momentum 383

A.2 The invariant mass 385

A.3 Transformation of the scattering angle 388

Problems A 390

B Amplitudes and cross-sections 392

B.1 Rates and cross-sections 392

B.2 The total cross-section 394

B.3 Differential cross-sections 395

B.4 The scattering amplitude 397

B.5 The Breit–Wigner formula 400

Problems B 406

C The isospin formalism 408

C.1 Isospin operators 409

C.2 Isospin states 411

C.3 Isospin multiplets 411

C.4 Branching ratios 414

C.5 Spin states 416

Problems C 416

D Gauge theories 418

D.1 Electromagnetic interactions 419

D.2 Gauge transformations 420

D.3 Gauge invariance and the photon mass 421

D.4 The gauge principle 423

D.5 The Higgs mechanism 425

D.6 Quantum chromodynamics 429

D.7 Electroweak interactions 434

Problems D 441

E Answers to selected questions 443

References 448

Index 451

Physical Constants, Conversion Factors and Natural Units Inside Back Cover

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