Subatomic Physics

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17.8. References 541 (b) N odd. (c) Compare the result with experimental values. 17.13. What isospin value would you expect for the ground state of an odd-mass nuclide (Z, N) in the single-particle shell model? 17.14. Use the single-particle shell model to explain why the islands of isomerism exist. (Traditionally, a long-lived excited nuclear state is called an isomer.) In particular, explain why the nuclide 85 Sr has an excited state, at 0.225 MeV, with a half-life of about 70 min. 17.15. Discuss direct nuclear reactions, for instance, (p, 2p), in the shell model and show in the case of a particular example (for instance p 16 O → 2p 15 N) that the shell structure is readily apparent in the differential cross section. [For example, see Th. A. Maris, P. Hillman, and H. Tyrèn, Nucl. Phys. 7, 1 (1958).] 17.16. Explain the reaction mechanism for exciting analog states in (d, n) reactions. Find an example in the literature. 17.17. The force acting on a nucleon incident on a nucleus can be represented by a single-particle optical potential. Such a potential can contain a term C � I · �I ′ f(r), where � I is the isospin of the incident nucleon and � I ′ that of the target nucleus. (a) Show that such a term is allowed. (b) Explain how such a term permits excitation of isobaric analog resonances in (p, n) and(n, p) reactions, among others. Are these reactions (either or both) still “allowed” if the electromagnetic interaction is switched off? (c) Estimate the magnitude and the mass number dependence of the constant C. 17.18. Consider the state of a proton, with small excitation energy, in a heavy nucleus. Explain why the application of the charge-lowering operator, I−, to such a state gives zero. 17.19. (a) Determine the next shell closures beyond those of Z =82andN = 128. What would be the atomic number and mass number of the next doubly magic nucleus? (b) Would you expect this nucleus to be stable? Give reasons, or explain.
542 The Shell Model (c) How would you search for this doubly magic nucleus? Has it been sought and what have been the results of the searches? 17.20. (a) Why do proton drip line nuclei tend to be easier to reach experimentally than neutron ones? (b) What are some reasons why the usual shell model does not apply for nuclei near the drip lines?
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SUBAT MIC PHYSICS Third Edition
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SUBAT MIC PHYSICS Ernest M Henley A
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To Elaine and Viviana
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Acknowledgments In writing the pres
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Preface to the First Edition Subato
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Preface to the Third Edition Subato
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General Bibliography The reader of
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Contents Dedication v Acknowledgmen
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Contents xvii 6 Structure of Subato
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Contents xix 12.5 GeneralReferences
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Chapter 1 Background and Language H
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1.2. Units 3 1.2 Units Table 1.1: B
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1.3. Special Relativity, Feynman Di
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1.3. Special Relativity, Feynman Di
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1.4. References 9 Problems 1.1. ∗
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Part I Tools One of the most frustr
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Chapter 2 Accelerators 2.1 Why Acce
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2.1. Why Accelerators? 15 particle
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2.2. Cross Sections and Luminosity
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2.3. Electrostatic Generators (Van
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2.4. Linear Accelerators (Linacs) 2
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2.5. Beam Optics 23 Figure 2.8: Rec
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2.6. Synchrotrons 25 Figure 2.10: E
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2.6. Synchrotrons 27 Photo 3: The p
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2.7. Laboratory and Center-of-Momen
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2.8. Colliding Beams 31 or with Eqs
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2.10. Beam Storage and Cooling 33 l
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2.11. References 35 and in E. Byckl
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2.11. References 37 (b) Extreme rel
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Chapter 3 Passage of Radiation Thro
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3.2. Heavy Charged Particles 41 Fig
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3.2. Heavy Charged Particles 43 −
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3.3. Photons 45 Equation (3.2) also
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3.4. Electrons 47 Figure 3.8: Passa
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3.5. Nuclear Interactions 49 Figure
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3.6. References 51 3.8. A beam of 1
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Chapter 4 Detectors What would a ph
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4.1. Scintillation Counters 55 The
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4.2. Statistical Aspects 57 Or, to
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4.3. Semiconductor Detectors 59 kno
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4.3. Semiconductor Detectors 61 Fig
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4.4. Bubble Chambers 63 Photo 5: Bu
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4.6. Wire Chambers 65 voltage suppl
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4.8. Time Projection Chambers 67 Fi
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4.10. Calorimeters 69 Figure 4.18:
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4.11. Counter Electronics 71 Figure
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4.13. References 73 Table 4.1: Func
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4.13. References 75 4.6. Sketch the
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Part II Particles and Nuclei The si
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Chapter 5 The Subatomic Zoo A conve
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5.1. Mass and Spin. Fermions and Bo
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5.1. Mass and Spin. Fermions and Bo
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5.2. Electric Charge and Magnetic D
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5.3. Mass Measurements 87 Figure 5.
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5.3. Mass Measurements 89 Figure 5.
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5.3. Mass Measurements 91 Earlier,
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5.4. A First Glance at the Subatomi
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5.5. Gauge Bosons 95 Figure 5.13: A
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5.6. Leptons 97 to its momentum, re
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5.7. Decays 99 Figure 5.15: Exponen
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5.7. Decays 101 The function g(ω)
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5.8. Mesons 103 5.8 Mesons Table 5.
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5.9. Baryon Ground States 105 Japan
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5.9. Baryon Ground States 107 neutr
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5.10. Particles and Antiparticles 1
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5.10. Particles and Antiparticles 1
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5.11. Quarks, Gluons, and Intermedi
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5.12. Excited States and Resonances
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5.12. Excited States and Resonances
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5.13. Excited States of Baryons 123
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5.14. References 129 in Section 5.5
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5.14. References 131 5.14. Use the
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5.14. References 133 5.32. ∗ What
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Chapter 6 Structure of Subatomic Pa
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6.2. Rutherford and Mott Scattering
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6.2. Rutherford and Mott Scattering
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6.3. Form Factors 141 The scatterin
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6.4. The Charge Distribution of Sph
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6.4. The Charge Distribution of Sph
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6.5. Leptons Are Point Particles 14
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6.6. Nucleon Elastic Form Factors 1
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6.8. Inelastic Electron and Muon Sc
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6.8. Inelastic Electron and Muon Sc
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6.9. Deep Inelastic Electron Scatte
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6.10. Quark-Parton Model for Deep I
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6.11. More Details on Scattering an
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6.12. References 189 Some character
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6.12. References 191 (c) Show that
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6.12. References 193 6.23. Show tha
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Part III Symmetries and Conservatio
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Chapter 7 Additive Conservation Law
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7.1. Conserved Quantities and Symme
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7.1. Conserved Quantities and Symme
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7.2. The Electric Charge 203 7.2 Th
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7.2. The Electric Charge 205 or [Q,
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7.3. The Baryon Number 207 antineut
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7.4. Lepton and Lepton Flavor Numbe
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7.5. Strangeness Flavor 211 all bel
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7.5. Strangeness Flavor 213 Positiv
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7.6. Additive Quantum Numbers of Qu
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7.7. References 217 There are also
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7.7. References 219 7.12. Follow th
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Chapter 8 Angular Momentum and Isos
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8.2. Symmetry Breaking by a Magneti
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8.4. The Nucleon Isospin 225 8.4 Th
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8.5. Isospin Invariance 227 magneti
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8.6. Isospin of Particles 229 the v
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8.6. Isospin of Particles 231 The a
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8.7. Isospin in Nuclei 233 If the e
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8.8. References 235 Isospin doublet
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8.8. References 237 8.4. Verify the
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Chapter 9 P , C, CP, andT In the pr
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9.1. The Parity Operation 241 P is
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9.2. The Intrinsic Parities of Suba
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9.2. The Intrinsic Parities of Suba
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9.3. Conservation and Breakdown of
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9.4. Charge Conjugation 253 “Is t
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9.4. Charge Conjugation 255 The π
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9.5. Time Reversal 257 if Tψ(t) an
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9.5. Time Reversal 259 found to be
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9.6. The Two-State Problem 261 Hami
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9.7. The Neutral Kaons 263 9.7 The
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9.7. The Neutral Kaons 265 3. The s
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9.7. The Neutral Kaons 267 and only
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9.8. The Fall of CP Invariance 269
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9.9. References 271 • There are t
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9.9. References 273 9.8. * Find inf
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9.9. References 275 9.27. Assume th
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9.9. References 277 9.39. Compare t
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Part IV Interactions In the previou
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Chapter 10 The Electromagnetic Inte
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10.1. The Golden Rule 283 Schrödin
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10.1. The Golden Rule 285 where it
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10.2. Phase Space 287 Figure 10.4:
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10.3. The Classical Electromagnetic
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10.3. The Classical Electromagnetic
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10.4. Photon Emission 293 is a twof
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10.4. Photon Emission 295 the form
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10.4. Photon Emission 297 where V (
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10.5. Multipole Radiation 299 The t
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10.5. Multipole Radiation 301 Figur
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10.6. Electromagnetic Scattering of
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10.6. Electromagnetic Scattering of
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10.7. Vector Mesons as Mediators of
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10.7. Vector Mesons as Mediators of
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10.8. Colliding Beams 311 10.8 Coll
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10.8. Colliding Beams 313 Figure 10
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10.9. Electron-Positron Collisions
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10.10. The Photon-Hadron Interactio
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10.11. Magnetic Monopoles 323 The s
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10.12. References 325 Quantum Elect
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10.12. References 327 (b) Compare t
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10.12. References 329 (a) How would
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Chapter 11 The Weak Interaction Thi
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11.1. The Continuous Beta Spectrum
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11.2. Beta Decay Lifetimes 335 The
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11.3. The Current-Current Interacti
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11.4. A Variety of Weak Processes 3
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11.4. A Variety of Weak Processes 3
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11.5. The Muon Decay 347 Linac Pion
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11.6. The Weak Current of Leptons 3
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11.6. The Weak Current of Leptons 3
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11.7. Chirality versus Helicity 353
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11.9. Weak Decays of Quarks and the
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11.10. Weak Currents in Nuclear Phy
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11.10. Weak Currents in Nuclear Phy
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11.11. Inverse Beta Decay: Reines a
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11.12. Massive Neutrinos 363 11.12
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11.13. Majorana versus Dirac Neutri
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11.14. The Weak Current of Hadrons
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11.15. References 375 11.15 Referen
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11.15. References 377 11.5. Beta sp
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11.15. References 379 (b) * Discuss
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11.15. References 381 11.41. For nu
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Chapter 12 Introduction to Gauge Th
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12.1. Introduction 385 D0 ≡ 1 ∂
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12.2. Potentials in Quantum Mechani
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12.3. Gauge Invariance for Non-Abel
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12.3. Gauge Invariance for Non-Abel
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12.4. The Higgs Mechanism; Spontane
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12.5. General References 401 12.5 G
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Chapter 13 The Electroweak Theory o
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13.2. The Gauge Bosons and Weak Iso
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13.2. The Gauge Bosons and Weak Iso
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13.3. The Electroweak Interaction 4
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13.4. Tests of the Standard Model 4
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13.4. Tests of the Standard Model 4
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13.5. References 419 Physics. 112,
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Chapter 14 Strong Interactions All
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14.1. Range and Strength of the Low
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14.2. The Pion-Nucleon Interaction
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14.3. The Form of the Pion-Nucleon
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14.4. The Yukawa Theory of Nuclear
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14.5. Low-Energy Nucleon-Nucleon Fo
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14.6. Meson Theory of the Nucleon-N
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14.7. Strong Processes at High Ener
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14.8. The Standard Model, Quantum C
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14.9. QCD at Low Energies 457 An ex
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14.10. Grand Unified Theories, Supe
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14.11. References 461 and Partons,
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14.11. References 463 Fig. 14.28 14
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14.11. References 465 14.25. The lo
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14.11. References 467 (b) What comb
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Part V Models “A model is like an
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Chapter 15 Quark Models of Mesons a
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15.2. Quarks as Building Blocks of
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15.4. Mesons as Bound Quark States
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15.4. Mesons as Bound Quark States
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15.5. Baryons as Bound Quark States
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15.6. The Hadron Masses 481 Figure
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15.7. QCD and Quark Models of the H
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Page 512 and 513: 15.8. Heavy Mesons: Charmonium, Ups
Page 514 and 515: 15.9. Outlook and Problems 493 wher
Page 516 and 517: 15.10. References 495 On a more adv
Page 518 and 519: 15.10. References 497 where J± = J
Page 520 and 521: 15.10. References 499 (b) Apply the
Page 522 and 523: Chapter 16 Liquid Drop Model, Fermi
Page 524 and 525: 16.1. The Liquid Drop Model 503 Fig
Page 526 and 527: 16.1. The Liquid Drop Model 505 Bey
Page 528 and 529: 16.2. The Fermi Gas Model 507 N = V
Page 530 and 531: E/A(MeV) 16.3. Heavy Ion Reactions
Page 532 and 533: 16.4. Relativistic Heavy Ion Collis
Page 534 and 535: 16.4. Relativistic Heavy Ion Collis
Page 536 and 537: 16.5. References 515 medium (i.e. s
Page 538 and 539: 16.5. References 517 16.12. Symmetr
Page 540 and 541: 16.5. References 519 16.25. At RHIC
Page 542 and 543: Chapter 17 The Shell Model The liqu
Page 544 and 545: 17.1. The Magic Numbers 523 The res
Page 546 and 547: 17.2. The Closed Shells 525 solved
Page 548 and 549: 17.2. The Closed Shells 527 Figure
Page 550 and 551: 17.3. The Spin-Orbit Interaction 52
Page 552 and 553: 17.4. The Single-Particle Shell Mod
Page 554 and 555: 17.5. Generalization of the Single-
Page 556 and 557: 17.6. Isobaric Analog Resonances 53
Page 558 and 559: 17.7. Nuclei Far From the Valley of
Page 560 and 561: 17.8. References 539 An elementary
Page 564 and 565: Chapter 18 Collective Model Althoug
Page 566 and 567: 18.1. Nuclear Deformations 545 spin
Page 568 and 569: 18.2. Rotational Spectra of Spinles
Page 570 and 571: 18.2. Rotational Spectra of Spinles
Page 572 and 573: 18.3. Rotational Families 551 A spi
Page 574 and 575: 18.3. Rotational Families 553 2. Th
Page 576 and 577: 18.4. One-Particle Motion in Deform
Page 578 and 579: 18.4. One-Particle Motion in Deform
Page 580 and 581: 18.5. Vibrational States in Spheric
Page 582 and 583: 18.5. Vibrational States in Spheric
Page 584 and 585: 18.6. The Interacting Boson Model 5
Page 586 and 587: 18.7. Highly Excited States; Giant
Page 588 and 589: 18.8. Nuclear Models—Concluding R
Page 590 and 591: 18.8. Nuclear Models—Concluding R
Page 592 and 593: 18.9. References 571 J. S. Vaagen,
Page 594 and 595: 18.9. References 573 18.13. Verify
Page 596 and 597: 18.9. References 575 18.33. Conside
Page 598 and 599: 18.9. References 577 18.51. (a) In
Page 600 and 601: Chapter 19 Nuclear and Particle Ast
Page 602 and 603: 19.1. The Beginning of the Universe
Page 604 and 605: 19.1. The Beginning of the Universe
Page 606 and 607: 19.2. Primordial Nucleosynthesis 58
Page 608 and 609: 19.3. Stellar Energy and Nucleosynt
Page 610 and 611: 19.3. Stellar Energy and Nucleosynt
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19.3. Stellar Energy and Nucleosynt
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19.4. Stellar Collapse and Neutron
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19.4. Stellar Collapse and Neutron
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19.5. Cosmic Rays 597 We are consta
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19.5. Cosmic Rays 599 Figure 19.11:
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19.6. Neutrino Astronomy and Cosmol
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19.8. References 603 baryon excess
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19.8. References 605 Neutron Stars
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19.8. References 607 (a) What is th
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Index Abundance, 585-586 Accelerato
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Index 611 drift chambers, 66-67 ele
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Index 613 diagrams, 279 electromagn
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Index 615 outlook, 567 Nuclear stru
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Index 617 poles, 494 recurrences, 4
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Index 619 TCP theorem, 269, 448 Tem
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