Knowledge

Resonance (particle physics)

Source đź“ť

407: 135: 178: 291: 286: 448: 107: 477: 143: 281: 256: 441: 467: 28: 422: 472: 342: 434: 192: 375: 78:
or less. It is also used to describe particles in intermediate steps of a decay, so-called
8: 271: 36: 313: 414: 235: 79: 20: 266: 261: 185: 86: 418: 276: 461: 94: 68: 64: 60: 214: 56: 67:. In common usage, "resonance" only describes particles with very short 239: 32: 406: 243: 223: 219: 222:. Pions are generally not considered as "resonances". The charged 52: 234:. Correspondingly, its resonance width is very large, at 149.1 74: 48: 44: 40: 195:
of the particle's resonance width. For example, the charged
196: 101:) of the particle (or its excited state) by the relation 207:. Therefore, its resonance width is very small, about 242:. This amounts to nearly one-fifth of the particle's 146: 110: 27:
is the peak located around a certain energy found in
172: 129: 199:has the second-longest lifetime of any meson, at 459: 191:Thus, the lifetime of a particle is the direct 130:{\displaystyle \Gamma ={\frac {\hbar }{\tau }}} 442: 173:{\displaystyle {\hbar }={\frac {h}{2\pi }}} 449: 435: 71:, mostly high-energy hadrons existing for 287:Resonances in scattering from potentials 460: 292:Relativistic Breit–Wigner distribution 401: 13: 311: 111: 35:. These peaks are associated with 14: 489: 226:has a very short lifetime, about 405: 374:. (Particle Data Group) (2016): 341:. (Particle Data Group) (2016): 314:"What is a Resonance Particle?" 364: 331: 305: 1: 298: 39:, which include a variety of 421:. You can help Knowledge by 16:Concept in scattering theory 7: 249: 29:differential cross sections 10: 494: 400: 282:Feshbach–Fano partitioning 257:Baryon resonance particles 478:Particle physics stubs 417:–related article is a 174: 131: 87:width of the resonance 33:scattering experiments 175: 132: 376:Particle listings – 343:Particle listings – 144: 108: 93:) is related to the 37:subatomic particles 272:Feshbach resonance 170: 127: 468:Scattering theory 430: 429: 168: 125: 80:virtual particles 485: 473:Particle physics 451: 444: 437: 415:particle physics 409: 402: 395: 393: 392: 391: 384: 383: 368: 362: 360: 359: 358: 351: 350: 335: 329: 328: 326: 324: 309: 233: 231: 217: 212: 206: 204: 179: 177: 176: 171: 169: 167: 156: 151: 136: 134: 133: 128: 126: 118: 77: 21:particle physics 493: 492: 488: 487: 486: 484: 483: 482: 458: 457: 456: 455: 399: 398: 390: 388: 387: 386: 382: 380: 379: 378: 377: 369: 365: 357: 355: 354: 353: 349: 347: 346: 345: 344: 336: 332: 322: 320: 312:Dudley, Chris. 310: 306: 301: 296: 267:Giant resonance 262:Roper resonance 252: 229: 227: 210: 208: 202: 200: 186:Planck constant 160: 155: 147: 145: 142: 141: 117: 109: 106: 105: 72: 17: 12: 11: 5: 491: 481: 480: 475: 470: 454: 453: 446: 439: 431: 428: 427: 410: 397: 396: 389: 381: 363: 356: 348: 330: 303: 302: 300: 297: 295: 294: 289: 284: 279: 277:Fano resonance 274: 269: 264: 259: 253: 251: 248: 218:or about 6.11 166: 163: 159: 154: 150: 138: 137: 124: 121: 116: 113: 61:upsilon mesons 15: 9: 6: 4: 3: 2: 490: 479: 476: 474: 471: 469: 466: 465: 463: 452: 447: 445: 440: 438: 433: 432: 426: 424: 420: 416: 411: 408: 404: 403: 394: 373: 367: 361: 340: 334: 319: 315: 308: 304: 293: 290: 288: 285: 283: 280: 278: 275: 273: 270: 268: 265: 263: 260: 258: 255: 254: 247: 245: 241: 237: 225: 221: 216: 198: 194: 189: 187: 183: 164: 161: 157: 152: 148: 122: 119: 114: 104: 103: 102: 100: 96: 95:mean lifetime 92: 88: 83: 81: 76: 70: 66: 62: 58: 57:delta baryons 54: 50: 46: 42: 38: 34: 30: 26: 22: 423:expanding it 412: 371: 366: 338: 333: 321:. Retrieved 318:phy.duke.edu 317: 307: 238:or about 36 190: 181: 139: 98: 90: 84: 63:) and their 24: 18: 370:K.A. Olive 337:K.A. Olive 65:excitations 462:Categories 299:References 244:rest mass 232:10 s 224:rho meson 205:10 s 165:π 149:ℏ 123:τ 120:ℏ 112:Γ 69:lifetimes 51:(such as 25:resonance 323:24 April 250:See also 213:10  73:10  53:nucleons 193:inverse 184:is the 75:seconds 49:hadrons 385:ρ 352:π 201:2.6033 140:where 45:quarks 41:bosons 413:This 372:et al 339:et al 209:2.528 419:stub 325:2017 228:4.41 197:pion 180:and 85:The 47:and 23:, a 240:ZHz 236:MeV 220:MHz 59:or 31:of 19:In 464:: 316:. 246:. 215:eV 188:. 82:. 55:, 43:, 450:e 443:t 436:v 425:. 327:. 230:Ă— 211:Ă— 203:Ă— 182:h 162:2 158:h 153:= 115:= 99:Ď„ 97:( 91:Γ 89:(

Index

particle physics
differential cross sections
scattering experiments
subatomic particles
bosons
quarks
hadrons
nucleons
delta baryons
upsilon mesons
excitations
lifetimes
seconds
virtual particles
width of the resonance
mean lifetime
Planck constant
inverse
pion
eV
MHz
rho meson
MeV
ZHz
rest mass
Baryon resonance particles
Roper resonance
Giant resonance
Feshbach resonance
Fano resonance

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑