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B − L

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1038: 43: 929: 985: 740: 975: 879: 418: 449: 934: 944: 413: 1079: 949: 683: 872: 442: 107: 79: 1103: 865: 126: 86: 435: 423: 590:
that would break baryon number conservation and lepton number conservation individually cancel in such a way that
1108: 93: 64: 919: 939: 75: 1072: 1098: 540:. Unlike baryon number alone or lepton number alone, this hypothetical symmetry would not be broken by 142: 60: 1017: 53: 1065: 781: 601: 180: 545: 1012: 924: 835: 764: 576: 524: 100: 8: 28: 17: 839: 1053: 587: 1045: 980: 903: 843: 657: 562: 548:, as long as this symmetry is global, which is why this symmetry is often invoked. 463: 345: 147: 513: 262: 847: 1049: 796: 756: 752: 541: 517: 509: 497: 477: 155: 1092: 489: 481: 237: 228: 888: 857: 791: 776: 605: 246: 291: 189: 806: 801: 745: 271: 207: 1037: 826:
Wilczek, Frank; Zee, A. (1979). "Operator analysis of nucleon decay".
42: 34:
Quantum number; the difference between the baryon and lepton numbers
959: 954: 639: 580: 786: 198: 164: 609: 760: 624: 520: 686: 67:. Unsourced material may be challenged and removed. 734: 1090: 1073: 873: 443: 887: 735:{\displaystyle X+2\,Y_{\text{W}}=5\,(B-L),} 1080: 1066: 880: 866: 825: 450: 436: 27:"B-L" redirects here. For other uses, see 713: 696: 127:Learn how and when to remove this message 14: 1091: 861: 1032: 480:which is the difference between the 65:adding citations to reliable sources 36: 561:exists as a symmetry, then for the 24: 476:(pronounced "bee minus ell") is a 25: 1120: 1036: 41: 52:needs additional citations for 819: 726: 714: 604:. One hypothetical example is 13: 1: 812: 751:(not to be confused with the 1052:. You can help Knowledge by 7: 848:10.1103/PhysRevLett.43.1571 770: 759:associated with the global 10: 1125: 1104:Flavour (particle physics) 1031: 503: 26: 994: 968: 912: 896: 828:Physical Review Letters 546:gravitational anomalies 424:Flavour complementarity 221:Related quantum numbers 1109:Particle physics stubs 1048:–related article is a 736: 737: 623:) would decay into a 1018:Georgi–Glashow model 1013:Grand Unified Theory 765:Grand Unified Theory 684: 577:spontaneously broken 525:Grand Unified Theory 61:improve this article 840:1979PhRvL..43.1571W 755:) is the conserved 512:is the charge of a 29:BL (disambiguation) 732: 1099:Conservation laws 1061: 1060: 1026: 1025: 834:(21): 1571–1573. 704: 523:symmetry in some 460: 459: 137: 136: 129: 111: 16:(Redirected from 1116: 1082: 1075: 1068: 1046:particle physics 1040: 1033: 981:Hyper-Kamiokande 904:Super-Kamiokande 882: 875: 868: 859: 858: 852: 851: 823: 741: 739: 738: 733: 706: 705: 702: 677: 667: 658:weak hypercharge 652: 637: 622: 599: 583:a nonzero mass. 574: 563:seesaw mechanism 560: 542:chiral anomalies 539: 495: 487: 464:particle physics 452: 445: 438: 346:Weak hypercharge 148:particle physics 139: 138: 132: 125: 121: 118: 112: 110: 69: 45: 37: 21: 1124: 1123: 1119: 1118: 1117: 1115: 1114: 1113: 1089: 1088: 1087: 1086: 1029: 1027: 1022: 990: 964: 908: 892: 886: 856: 855: 824: 820: 815: 773: 701: 697: 685: 682: 681: 669: 666: 660: 643: 628: 613: 591: 566: 552: 538: 528: 527:models, called 506: 493: 485: 456: 386: 373: 362: 354: 339: 263:Electric charge 259: 177: 156:quantum numbers 146: 133: 122: 116: 113: 70: 68: 58: 46: 35: 32: 23: 22: 15: 12: 11: 5: 1122: 1112: 1111: 1106: 1101: 1085: 1084: 1077: 1070: 1062: 1059: 1058: 1041: 1024: 1023: 1021: 1020: 1015: 1010: 998: 996: 992: 991: 989: 988: 983: 978: 972: 970: 966: 965: 963: 962: 957: 952: 947: 942: 937: 932: 927: 922: 916: 914: 910: 909: 907: 906: 900: 898: 894: 893: 885: 884: 877: 870: 862: 854: 853: 817: 816: 814: 811: 810: 809: 804: 799: 797:X and Y bosons 794: 789: 784: 779: 772: 769: 757:quantum number 731: 728: 725: 722: 719: 716: 712: 709: 700: 695: 692: 689: 668:is related to 664: 530: 510:quantum number 505: 502: 498:quantum system 478:quantum number 458: 457: 455: 454: 447: 440: 432: 429: 428: 427: 426: 421: 416: 408: 407: 406:Flavour mixing 403: 402: 401: 400: 399: 398: 384: 375: 371: 360: 352: 343: 342: 341: 337: 324: 286: 285: 281: 280: 279: 278: 269: 260: 257: 244: 235: 223: 222: 218: 217: 216: 215: 205: 196: 187: 178: 175: 159: 158: 151: 150: 135: 134: 49: 47: 40: 33: 9: 6: 4: 3: 2: 1121: 1110: 1107: 1105: 1102: 1100: 1097: 1096: 1094: 1083: 1078: 1076: 1071: 1069: 1064: 1063: 1057: 1055: 1051: 1047: 1042: 1039: 1035: 1034: 1030: 1019: 1016: 1014: 1011: 1009: 1008: 1004: 1000: 999: 997: 993: 987: 984: 982: 979: 977: 974: 973: 971: 967: 961: 958: 956: 953: 951: 948: 946: 943: 941: 938: 936: 933: 931: 928: 926: 923: 921: 918: 917: 915: 911: 905: 902: 901: 899: 895: 890: 883: 878: 876: 871: 869: 864: 863: 860: 849: 845: 841: 837: 833: 829: 822: 818: 808: 805: 803: 800: 798: 795: 793: 790: 788: 785: 783: 780: 778: 775: 774: 768: 766: 762: 758: 754: 750: 748: 742: 729: 723: 720: 717: 710: 707: 698: 693: 690: 687: 679: 676: 672: 663: 659: 654: 650: 646: 641: 635: 631: 626: 620: 616: 611: 607: 603: 598: 594: 589: 584: 582: 578: 573: 569: 564: 559: 555: 549: 547: 543: 537: 533: 526: 522: 519: 515: 511: 501: 499: 491: 490:lepton number 483: 482:baryon number 479: 475: 474: 471: −  470: 465: 453: 448: 446: 441: 439: 434: 433: 431: 430: 425: 422: 420: 417: 415: 412: 411: 410: 409: 405: 404: 396: 395: 391: 383: 379: 376: 370: 366: 359: 356: 355: 351: 347: 344: 336: 332: 328: 325: 322: 318: 314: 310: 306: 302: 299: 298: 297: 293: 290: 289: 288: 287: 283: 282: 277: 273: 270: 268: 264: 261: 256: 252: 248: 245: 243: 239: 238:Lepton number 236: 234: 230: 229:Baryon number 227: 226: 225: 224: 220: 219: 213: 209: 206: 204: 200: 197: 195: 191: 188: 186: 182: 179: 174: 170: 166: 163: 162: 161: 160: 157: 153: 152: 149: 144: 141: 140: 131: 128: 120: 109: 106: 102: 99: 95: 92: 88: 85: 81: 78: –  77: 73: 72:Find sources: 66: 62: 56: 55: 50:This article 48: 44: 39: 38: 30: 19: 1054:expanding it 1043: 1028: 1006: 1002: 1001: 889:Proton decay 831: 827: 821: 792:Proton decay 782:Leptogenesis 777:Baryogenesis 746: 743: 680: 674: 670: 661: 655: 648: 644: 633: 629: 618: 614: 606:proton decay 596: 592: 585: 579:to give the 571: 567: 557: 553: 550: 535: 531: 507: 472: 468: 467: 461: 393: 389: 388: 381: 377: 368: 364: 357: 349: 334: 330: 326: 320: 316: 312: 308: 304: 300: 295: 284:Combinations 275: 266: 254: 250: 247:Weak isospin 241: 232: 211: 202: 193: 184: 172: 168: 123: 117:January 2021 114: 104: 97: 90: 83: 71: 59:Please help 54:verification 51: 891:experiments 419:PMNS matrix 292:Hypercharge 190:Strangeness 1093:Categories 940:Kamiokande 813:References 807:Leptoquark 802:X (charge) 600:is always 575:has to be 488:) and the 414:CKM matrix 319:′ + 208:Bottomness 87:newspapers 925:Homestake 897:Operating 763:symmetry 721:− 602:conserved 588:anomalies 581:neutrinos 995:See also 969:Proposed 960:Soudan 2 955:Soudan 1 771:See also 640:positron 608:where a 565:to work 272:X-charge 154:Flavour 913:Retired 836:Bibcode 787:Majoron 753:X boson 534:− 504:Details 496:) of a 214:′ 199:Topness 165:Isospin 143:Flavour 101:scholar 76:"B − L" 986:LAGUNA 920:Frejus 749:charge 744:where 638:) and 610:proton 514:global 103:  96:  89:  82:  74:  1044:This 976:ANNIE 950:NUSEX 647:= 0, 632:= 0, 617:= 1, 518:gauge 508:This 387:= 5 ( 363:= 2 ( 329:= 2 ( 181:Charm 108:JSTOR 94:books 1050:stub 761:U(1) 678:via 656:The 651:= –1 625:pion 586:The 529:U(1) 521:U(1) 80:news 945:KGF 935:IMB 930:HPW 844:doi 653:). 636:= 0 621:= 0 551:If 544:or 462:In 380:+ 2 303:= ( 253:or 171:or 63:by 18:B-L 1095:: 1005:− 842:. 832:43 830:. 767:. 673:– 595:– 570:– 556:– 500:. 466:, 392:− 367:− 348:: 333:− 315:+ 311:+ 307:+ 294:: 274:: 265:: 249:: 240:: 231:: 210:: 201:: 192:: 183:: 167:: 145:in 1081:e 1074:t 1067:v 1056:. 1007:L 1003:B 881:e 874:t 867:v 850:. 846:: 838:: 747:X 730:, 727:) 724:L 718:B 715:( 711:5 708:= 703:W 699:Y 694:2 691:+ 688:X 675:L 671:B 665:W 662:Y 649:L 645:B 642:( 634:L 630:B 627:( 619:L 615:B 612:( 597:L 593:B 572:L 568:B 558:L 554:B 536:L 532:B 516:/ 494:L 492:( 486:B 484:( 473:L 469:B 451:e 444:t 437:v 397:) 394:L 390:B 385:W 382:Y 378:X 374:) 372:3 369:T 365:Q 361:W 358:Y 353:W 350:Y 340:) 338:3 335:I 331:Q 327:Y 323:) 321:T 317:B 313:C 309:S 305:B 301:Y 296:Y 276:X 267:Q 258:3 255:T 251:T 242:L 233:B 212:B 203:T 194:S 185:C 176:3 173:I 169:I 130:) 124:( 119:) 115:( 105:· 98:· 91:· 84:· 57:. 31:. 20:)

Index

B-L
BL (disambiguation)

verification
improve this article
adding citations to reliable sources
"B − L"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message
Flavour
particle physics
quantum numbers
Isospin
Charm
Strangeness
Topness
Bottomness
Baryon number
Lepton number
Weak isospin
Electric charge
X-charge
Hypercharge
Weak hypercharge
BL
CKM matrix

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