Preface |
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ix | |
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1 Introduction: basics of QCD perturbation theory |
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1 | (21) |
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1 | (2) |
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1.2 A review of Feynman rules for QCD |
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3 | (4) |
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6 | (1) |
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1.3 Rules of light cone perturbation theory |
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7 | (7) |
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10 | (2) |
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1.3.2 Light cone wave function |
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12 | (2) |
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1.4 Sample LCPT calculations |
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14 | (5) |
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14 | (3) |
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1.4.2 A sample light cone wave function |
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17 | (2) |
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19 | (3) |
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2 Deep inelastic scattering |
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22 | (52) |
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2.1 Kinematics, cross section, and structure functions |
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22 | (5) |
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2.2 Parton model and Bjorken scaling |
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27 | (11) |
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2.2.1 Warm-up: DIS on a single free quark |
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27 | (2) |
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2.2.2 Full calculation: DIS on a proton |
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29 | (9) |
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2.3 Space-time structure of DIS processes |
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38 | (5) |
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2.4 Violation of Bjorken scaling; the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equation |
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43 | (31) |
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2.4.1 Parton distributions |
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43 | (2) |
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2.4.2 Evolution for quark distribution |
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45 | (8) |
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2.4.3 The DGLAP evolution equations |
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53 | (3) |
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2.4.4 Gluon-gluon splitting function |
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56 | (4) |
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2.4.5 General solution of the DGLAP equations |
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60 | (3) |
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2.4.6 Double logarithmic approximation |
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63 | (9) |
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72 | (1) |
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72 | (2) |
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3 Energy evolution and leading logarithm-1/x approximation in QCD |
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74 | (49) |
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74 | (2) |
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3.2 Two-gluon exchange: the Low-Nussinov pomeron |
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76 | (6) |
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3.3 The Balitsky-Fadin-Kuraev-Lipatov evolution equation |
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82 | (30) |
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3.3.1 Effective emission vertex |
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83 | (5) |
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3.3.2 Virtual corrections and reggeized gluons |
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88 | (4) |
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92 | (3) |
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3.3.4 Solution of the BFKL equation |
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95 | (8) |
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3.3.5 Bootstrap property of the BFKL equation |
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103 | (4) |
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3.3.6 Problems of BFKL evolution: unitarity and diffusion |
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107 | (5) |
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3.4 The nonlinear Gribov-Levin-Ryskin and Mueller-Qiu evolution equation |
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112 | (11) |
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3.4.1 The physical picture of parton saturation |
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112 | (3) |
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3.4.2 The GLR-MQ equation |
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115 | (6) |
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121 | (1) |
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121 | (2) |
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4 Dipole approach to high parton density QCD |
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123 | (75) |
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4.1 Dipole picture of DIS |
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123 | (6) |
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4.2 Glauber-Gribov-Mueller multiple-rescatterings formula |
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129 | (12) |
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4.2.1 Scattering on one nucleon |
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130 | (3) |
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4.2.2 Scattering on many nucleons |
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133 | (6) |
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4.2.3 Saturation picture from the GGM formula |
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139 | (2) |
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4.3 Mueller's dipole model |
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141 | (22) |
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4.3.1 Dipole wave function and generating functional |
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141 | (12) |
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4.3.2 The BFKL equation in transverse coordinate space |
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153 | (6) |
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4.3.3 The general solution of the coordinate-space BFKL equation |
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159 | (4) |
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4.4 The Balitsky-Kovchegov equation |
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163 | (9) |
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4.5 Solution of the Balitsky-Kovchegov equation |
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172 | (17) |
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4.5.1 Solution outside the saturation region; extended geometric scaling |
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172 | (4) |
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4.5.2 Solution inside the saturation region; geometric scaling |
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176 | (2) |
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4.5.3 Semiclassical solution |
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178 | (3) |
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4.5.4 Traveling wave solution |
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181 | (3) |
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4.5.5 Numerical solutions |
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184 | (4) |
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4.5.6 Map of high energy QCD |
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188 | (1) |
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4.6 The Bartels-Kwiecinski-Praszalowicz equation |
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189 | (3) |
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192 | (6) |
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195 | (1) |
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196 | (2) |
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5 Classical gluon fields and the color glass condensate |
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198 | (30) |
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5.1 Strong classical gluon fields: the McLerran-Venugopalan model |
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198 | (17) |
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5.1.1 The key idea of the approach |
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198 | (2) |
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5.1.2 Classical gluon field of a single nucleus |
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200 | (5) |
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5.1.3 Classical gluon distribution |
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205 | (10) |
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5.2 The Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner evolution equation |
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215 | (13) |
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5.2.1 The color glass condensate (CGC) |
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215 | (1) |
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5.2.2 Derivation of JIMWLK evolution |
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216 | (8) |
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5.2.3 Obtaining BK from JIMWLK and the Balitsky hierarchy |
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224 | (2) |
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226 | (1) |
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226 | (2) |
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6 Corrections to nonlinear evolution equations |
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228 | (22) |
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6.1 Why we need higher-order corrections |
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228 | (1) |
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6.2 Running-coupling corrections to the BFKL, BK, and JIMWLK evolutions |
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229 | (13) |
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6.2.1 An outline of the running-coupling calculation |
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230 | (5) |
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6.2.2 Impact of running coupling on small-x evolution |
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235 | (5) |
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6.2.3 Nonperturbative effects and renormalons |
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240 | (2) |
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6.3 The next-to-leading order BFKL and BK equations |
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242 | (8) |
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6.3.1 Short summary of NLO calculations |
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243 | (2) |
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6.3.2 Renormalization-group-improved NLO approach |
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245 | (3) |
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248 | (1) |
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249 | (1) |
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7 Diffraction at high energy |
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250 | (22) |
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250 | (5) |
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7.1.1 Diffraction in optics |
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250 | (3) |
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7.1.2 Elastic scattering and inelastic diffraction |
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253 | (2) |
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7.2 Diffractive dissociation in DIS |
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255 | (17) |
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7.2.1 Low-mass diffraction |
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256 | (6) |
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7.2.2 Nonlinear evolution equation for high-mass diffraction |
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262 | (8) |
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270 | (1) |
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271 | (1) |
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8 Particle production in high energy QCD |
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272 | (21) |
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8.1 Gluon production at the lowest order |
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272 | (2) |
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8.2 Gluon production in DIS and pA collisions |
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274 | (16) |
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8.2.1 Quasi-classical gluon production |
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274 | (10) |
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8.2.2 Including nonlinear evolution |
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284 | (6) |
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8.3 Gluon production in nucleus-nucleus collisions |
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290 | (3) |
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291 | (1) |
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292 | (1) |
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293 | (14) |
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9.1 Comparison with experimental data |
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293 | (10) |
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9.1.1 Deep inelastic scattering |
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294 | (1) |
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9.1.2 Proton(deuteron)-nucleus collisions |
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295 | (2) |
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9.1.3 Proton-proton and heavy ion collisions |
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297 | (6) |
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9.2 Unsolved theoretical problems |
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303 | (4) |
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306 | (1) |
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Appendix A Reference formulas |
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307 | (5) |
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A.1 Dirac matrix element tables |
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307 | (1) |
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A.2 Some useful integrals |
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307 | (3) |
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A.3 Another useful integral |
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310 | (2) |
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Appendix B Dispersion relations, analyticity, and unitarity of the scattering amplitude |
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312 | (7) |
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B.1 Crossing symmetry and dispersion relations |
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312 | (4) |
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B.2 Unitarity and the Froissart-Martin bound |
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316 | (3) |
References |
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319 | (17) |
Index |
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336 | |