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Antineutron

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283: 34: 2101: 282: 957:
NNN 2002 Workshop on "Large Detectors for Proton Decay, Supernovae and Atmospheric Neutrinos and Low Energy Neutrinos from High Intensity Beams" at CERN
1019: 2024: 790: 1774: 2012: 949: 406: 922: 634: 914: 540: 1054: 681: 978: 1910: 1991: 652:
Since the antineutron is electrically neutral, it cannot easily be observed directly. Instead, the products of its
626: 444: 1029:" explains how the antineutron differs from the regular neutron despite having the same, that is zero, charge. 2007: 469: 104: 2083: 1495: 533: 2051: 1686: 1313: 1047: 757: 701: 91: 1986: 1323: 1026: 439: 2073: 333: 879: 860: 824: 811:
Cork, Bruce; Lambertson, Glen R.; Piccioni, Oreste; Wenzel, William A. (15 November 1956).
434: 8: 2125: 2088: 1071: 891: 601:(+1 for neutron, −1 for the antineutron). This is because the antineutron is composed of 526: 497: 338: 71: 883: 828: 2031: 1040: 895: 869: 840: 96: 1009: 858:
R. N. Mohapatra (2009). "Neutron-Anti-Neutron Oscillation: Theory and Phenomenology".
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with ordinary matter are observed. In theory, a free antineutron should
1798: 1692: 1682: 1664: 1554: 1455: 1390: 1107: 1032: 1014: 752: 673: 661: 646: 638: 585:. It differs from the neutron only in that some of its properties have 502: 363: 319: 304: 274: 156: 64: 47: 813:"Antineutrons Produced from Antiprotons in Charge-Exchange Collisions" 1940: 1930: 1900: 1793: 1759: 1752: 1629: 1619: 1614: 1586: 1354: 1137: 602: 76: 2036: 1864: 1819: 1803: 1764: 1737: 1450: 1445: 1425: 1395: 1385: 1380: 1200: 1175: 1170: 1097: 669: 665: 630: 299: 60: 1022:: includes information about antineutron discovery (archived link) 874: 1945: 1935: 1905: 1859: 1854: 1829: 1747: 1732: 1659: 1654: 1559: 1544: 1490: 1465: 1430: 1359: 1341: 1080: 562: 353: 343: 246: 146: 108: 1925: 1920: 1549: 1536: 1527: 1349: 1263: 1162: 1950: 1890: 1742: 1601: 1480: 1420: 1375: 1268: 1246: 1089: 606: 326: 810: 1717: 1649: 1609: 1185: 1180: 590: 512: 783:"2022 CODATA Value: neutron mass energy equivalent in MeV" 787:
The NIST Reference on Constants, Units, and Uncertainty
912: 976: 728:for the neutron (relative to the direction of the 645:, and William Wenzel in 1956, one year after the 2117: 775: 947: 857: 1015:suppression of neutron-antineutron oscillation 684:, a process that implies the violation of the 1048: 534: 1055: 1041: 541: 527: 873: 1062: 986:Modern Physics, Physics 390, Winter 2007 979:"Physics 390: Homework set #7 Solutions" 913:C. Giunti; M. Laveder (19 August 2010). 1010:LBL Particle Data Group: summary tables 38:The quark structure of the antineutron. 2118: 1526: 700:of the antineutron is the opposite of 1036: 923:Istituto Nazionale di Fisica Nucleare 680:. There are theoretical proposals of 635:Lawrence Berkeley National Laboratory 950:"Neutron → Antineutron Oscillations" 1027:Is Antineutron the Same as Neutron? 977:Lorenzon, Wolfgang (6 April 2007). 948:Y. A. Kamyshkov (16 January 2002). 13: 691: 625:The antineutron was discovered in 609:. The antineutron consists of one 14: 2152: 1003: 605:, while neutrons are composed of 587:equal magnitude but opposite sign 2099: 1992:Timeline of particle discoveries 682:neutron–antineutron oscillations 281: 32: 445:Relativistic Heavy Ion Collider 970: 941: 906: 892:10.1088/0954-3899/36/10/104006 851: 804: 672:in a process analogous to the 1: 768: 620: 2008:History of subatomic physics 627:proton–antiproton collisions 470:Positron emission tomography 7: 746: 593:as the neutron, and no net 10: 2157: 18: 2097: 2000: 1964: 1881: 1842: 1812: 1786: 1782: 1773: 1705: 1673: 1600: 1535: 1517: 1413: 1368: 1340: 1331: 1322: 1304: 1282: 1254: 1245: 1161: 1088: 1079: 1070: 407:Gravitational interaction 245: 221: 201: 191: 163: 152: 140: 114: 90: 82: 70: 53: 43: 31: 2025:mathematical formulation 1620:Eta and eta prime mesons 837:10.1103/PhysRev.104.1193 716:for the antineutron but 19:Not to be confused with 1687:Double-charm tetraquark 758:Neutron magnetic moment 915:"Neutron Oscillations" 440:Antiproton decelerator 376:Concepts and phenomena 2084:Wave–particle duality 2074:Relativistic particle 1211:Electron antineutrino 334:Antiprotonic hydrogen 1314:Faddeev–Popov ghosts 1064:Particles in physics 1020:Elementary particles 929:on 27 September 2011 861:Journal of Physics G 435:Particle accelerator 203:Magnetic moment 193:Electric charge 2089:Particle chauvinism 2032:Subatomic particles 884:2009JPhG...36j4006M 829:1956PhRv..104.1193C 702:that of the neutron 641:, Glen Lambertson, 597:, but has opposite 498:Carl David Anderson 339:Antiprotonic helium 28: 589:. It has the same 26: 16:Subatomic particle 2113: 2112: 2069:Massless particle 1877: 1876: 1873: 1872: 1838: 1837: 1701: 1700: 1513: 1512: 1509: 1508: 1461:Magnetic monopole 1409: 1408: 1300: 1299: 1241: 1240: 1221:Muon antineutrino 1206:Electron neutrino 763:List of particles 637:) by the team of 551: 550: 412:Positron emission 269: 268: 2148: 2103: 2079:Virtual particle 1850:Mesonic molecule 1784: 1783: 1780: 1779: 1625:Bottom eta meson 1533: 1532: 1524: 1523: 1496:W′ and Z′ bosons 1486:Sterile neutrino 1471:Majorana fermion 1338: 1337: 1329: 1328: 1252: 1251: 1231:Tau antineutrino 1086: 1085: 1077: 1076: 1057: 1050: 1043: 1034: 1033: 997: 996: 994: 992: 983: 974: 968: 967: 965: 963: 954: 945: 939: 938: 936: 934: 925:. Archived from 919:Neutrino Unbound 910: 904: 903: 877: 855: 849: 848: 823:(4): 1193–1197. 808: 802: 801: 799: 798: 779: 741:nuclear magneton 727: 715: 649:was discovered. 584: 583: 582: 576: 573: 572: 543: 536: 529: 392:Baryon asymmetry 285: 271: 270: 265: 263: 262: 259: 256: 241: 239: 238: 235: 232: 217: 187: 178: 176: 173: 136: 135: 134: 128: 125: 124: 36: 29: 25: 2156: 2155: 2151: 2150: 2149: 2147: 2146: 2145: 2116: 2115: 2114: 2109: 2093: 2047:Nuclear physics 1996: 1960: 1896:Davydov soliton 1869: 1834: 1808: 1769: 1697: 1669: 1596: 1505: 1405: 1364: 1318: 1296: 1278: 1237: 1157: 1066: 1061: 1006: 1001: 1000: 990: 988: 981: 975: 971: 961: 959: 952: 946: 942: 932: 930: 911: 907: 856: 852: 817:Physical Review 809: 805: 796: 794: 781: 780: 776: 771: 749: 738: 725: 717: 713: 705: 698:magnetic moment 694: 692:Magnetic moment 643:Oreste Piccioni 623: 615:down antiquarks 595:electric charge 581: 579: 578: 577: 574: 571: 569: 568: 567: 566: 547: 518: 517: 508:Andrei Sakharov 493: 485: 484: 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1699: 1698: 1696: 1695: 1690: 1679: 1677: 1675:Exotic hadrons 1671: 1670: 1668: 1667: 1662: 1657: 1652: 1647: 1642: 1637: 1632: 1627: 1622: 1617: 1612: 1606: 1604: 1598: 1597: 1595: 1594: 1589: 1584: 1579: 1574: 1569: 1568: 1567: 1562: 1557: 1552: 1541: 1539: 1530: 1521: 1515: 1514: 1511: 1510: 1507: 1506: 1504: 1503: 1501:X and Y bosons 1498: 1493: 1488: 1483: 1478: 1473: 1468: 1463: 1458: 1453: 1448: 1443: 1438: 1433: 1428: 1423: 1417: 1415: 1411: 1410: 1407: 1406: 1404: 1403: 1393: 1388: 1383: 1378: 1372: 1370: 1366: 1365: 1363: 1362: 1357: 1352: 1346: 1344: 1335: 1326: 1320: 1319: 1317: 1316: 1310: 1308: 1302: 1301: 1298: 1297: 1295: 1294: 1288: 1286: 1280: 1279: 1277: 1276: 1274:W and Z bosons 1271: 1266: 1260: 1258: 1249: 1243: 1242: 1239: 1238: 1236: 1235: 1234: 1233: 1228: 1223: 1218: 1213: 1208: 1198: 1193: 1188: 1183: 1178: 1173: 1167: 1165: 1159: 1158: 1156: 1155: 1150: 1145: 1140: 1135: 1130: 1128:Strange (quark 1125: 1120: 1115: 1110: 1105: 1100: 1094: 1092: 1083: 1074: 1068: 1067: 1060: 1059: 1052: 1045: 1037: 1031: 1030: 1023: 1017: 1012: 1005: 1004:External links 1002: 999: 998: 969: 940: 905: 868:(10): 104006. 850: 803: 773: 772: 770: 767: 766: 765: 760: 755: 748: 745: 736: 723: 711: 693: 690: 688:conservation. 622: 619: 580: 570: 549: 548: 546: 545: 538: 531: 523: 520: 519: 516: 515: 510: 505: 500: 494: 491: 490: 487: 486: 483: 482: 477: 472: 466: 463: 462: 459: 458: 455: 454: 449: 448: 447: 442: 432: 426: 423: 422: 419: 418: 415: 414: 409: 404: 399: 394: 389: 384: 378: 375: 374: 371: 370: 367: 366: 361: 356: 351: 346: 341: 336: 323: 322: 317: 312: 307: 302: 296: 291: 290: 287: 286: 278: 277: 267: 266: 249: 243: 242: 225: 219: 218: 213: 205: 199: 198: 195: 189: 188: 167: 161: 160: 154: 150: 149: 144: 138: 137: 132: 122: 116: 112: 111: 94: 88: 87: 84: 80: 79: 74: 68: 67: 57: 51: 50: 45: 44:Classification 41: 40: 37: 15: 9: 6: 4: 3: 2: 2153: 2142: 2139: 2137: 2134: 2132: 2129: 2127: 2124: 2123: 2121: 2108: 2107: 2102: 2096: 2090: 2087: 2085: 2082: 2080: 2077: 2075: 2072: 2070: 2067: 2065: 2064:Exotic matter 2062: 2058: 2055: 2054: 2053: 2052:Eightfold way 2050: 2048: 2045: 2043: 2042:Antiparticles 2040: 2038: 2035: 2033: 2030: 2026: 2023: 2022: 2021: 2018: 2014: 2011: 2010: 2009: 2006: 2005: 2003: 1999: 1993: 1990: 1988: 1985: 1983: 1980: 1978: 1975: 1973: 1970: 1969: 1967: 1963: 1957: 1954: 1952: 1949: 1947: 1944: 1942: 1939: 1937: 1934: 1932: 1929: 1927: 1924: 1922: 1919: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1899: 1897: 1894: 1892: 1889: 1888: 1886: 1884: 1880: 1866: 1863: 1861: 1858: 1856: 1853: 1851: 1848: 1847: 1845: 1841: 1831: 1828: 1826: 1823: 1821: 1818: 1817: 1815: 1811: 1805: 1802: 1800: 1797: 1795: 1792: 1791: 1789: 1785: 1781: 1778: 1776: 1772: 1766: 1763: 1761: 1758: 1754: 1751: 1749: 1746: 1744: 1741: 1739: 1736: 1734: 1731: 1729: 1726: 1725: 1724: 1721: 1719: 1716: 1714: 1713:Atomic nuclei 1711: 1710: 1708: 1704: 1694: 1691: 1688: 1684: 1681: 1680: 1678: 1676: 1672: 1666: 1663: 1661: 1658: 1656: 1653: 1651: 1648: 1646: 1645:Upsilon meson 1643: 1641: 1638: 1636: 1633: 1631: 1628: 1626: 1623: 1621: 1618: 1616: 1613: 1611: 1608: 1607: 1605: 1603: 1599: 1593: 1590: 1588: 1585: 1583: 1580: 1578: 1577:Lambda baryon 1575: 1573: 1570: 1566: 1563: 1561: 1558: 1556: 1553: 1551: 1548: 1547: 1546: 1543: 1542: 1540: 1538: 1534: 1531: 1529: 1525: 1522: 1520: 1516: 1502: 1499: 1497: 1494: 1492: 1489: 1487: 1484: 1482: 1479: 1477: 1474: 1472: 1469: 1467: 1464: 1462: 1459: 1457: 1454: 1452: 1449: 1447: 1444: 1442: 1439: 1437: 1436:Dual graviton 1434: 1432: 1429: 1427: 1424: 1422: 1419: 1418: 1416: 1412: 1401: 1397: 1394: 1392: 1389: 1387: 1384: 1382: 1379: 1377: 1374: 1373: 1371: 1367: 1361: 1358: 1356: 1353: 1351: 1348: 1347: 1345: 1343: 1339: 1336: 1334: 1333:Superpartners 1330: 1327: 1325: 1321: 1315: 1312: 1311: 1309: 1307: 1303: 1293: 1290: 1289: 1287: 1285: 1281: 1275: 1272: 1270: 1267: 1265: 1262: 1261: 1259: 1257: 1253: 1250: 1248: 1244: 1232: 1229: 1227: 1224: 1222: 1219: 1217: 1216:Muon neutrino 1214: 1212: 1209: 1207: 1204: 1203: 1202: 1199: 1197: 1194: 1192: 1189: 1187: 1184: 1182: 1179: 1177: 1174: 1172: 1169: 1168: 1166: 1164: 1160: 1154: 1151: 1149: 1148:Bottom (quark 1146: 1144: 1141: 1139: 1136: 1134: 1131: 1129: 1126: 1124: 1121: 1119: 1116: 1114: 1111: 1109: 1106: 1104: 1101: 1099: 1096: 1095: 1093: 1091: 1087: 1084: 1082: 1078: 1075: 1073: 1069: 1065: 1058: 1053: 1051: 1046: 1044: 1039: 1038: 1035: 1028: 1024: 1021: 1018: 1016: 1013: 1011: 1008: 1007: 987: 980: 973: 958: 951: 944: 928: 924: 920: 916: 909: 901: 897: 893: 889: 885: 881: 876: 871: 867: 863: 862: 854: 846: 842: 838: 834: 830: 826: 822: 818: 814: 807: 792: 788: 784: 778: 774: 764: 761: 759: 756: 754: 751: 750: 744: 742: 735: 731: 726: 722: 714: 710: 703: 699: 689: 687: 686:baryon number 683: 679: 678:free neutrons 675: 671: 667: 663: 659: 655: 650: 648: 644: 640: 636: 632: 628: 618: 616: 612: 608: 604: 600: 599:baryon number 596: 592: 588: 564: 560: 556: 544: 539: 537: 532: 530: 525: 524: 522: 521: 514: 511: 509: 506: 504: 501: 499: 496: 495: 489: 488: 481: 478: 476: 473: 471: 468: 467: 461: 460: 453: 450: 446: 443: 441: 438: 437: 436: 433: 431: 430:Cloud chamber 428: 427: 421: 420: 413: 410: 408: 405: 403: 400: 398: 395: 393: 390: 388: 385: 383: 380: 379: 373: 372: 365: 362: 360: 357: 355: 352: 350: 347: 345: 342: 340: 337: 335: 332: 331: 330: 329: 328: 321: 318: 316: 313: 311: 308: 306: 303: 301: 298: 297: 294: 293:Antiparticles 289: 288: 284: 280: 279: 276: 273: 272: 250: 248: 244: 226: 224: 220: 216: 212: 206: 204: 200: 196: 194: 190: 186: 185: 168: 166: 162: 158: 155: 151: 148: 145: 143: 139: 117: 113: 110: 106: 102: 98: 95: 93: 89: 85: 81: 78: 75: 73: 69: 66: 62: 58: 56: 52: 49: 46: 42: 35: 30: 22: 21:Antineutrinos 2104: 1775:Hypothetical 1723:Exotic atoms 1592:Omega baryon 1582:Sigma baryon 1572:Delta baryon 1564: 1324:Hypothetical 1306:Ghost fields 1292:Higgs boson 1226:Tau neutrino 1118:Charm (quark 989:. Retrieved 985: 972: 960:. Retrieved 956: 943: 931:. Retrieved 927:the original 918: 908: 865: 859: 853: 820: 816: 806: 795:. Retrieved 786: 777: 733: 720: 708: 695: 654:annihilation 651: 624: 611:up antiquark 565:with symbol 559:antiparticle 554: 552: 452:Penning trap 402:CP violation 387:Baryogenesis 382:Annihilation 349:True muonium 325: 324: 315:Antihydrogen 309: 210: 183: 142:Antiparticle 92:Interactions 61:up antiquark 2057:Quark model 1825:Theta meson 1728:Positronium 1640:Omega meson 1635:J/psi meson 1565:Antineutron 1476:Dark photon 1441:Graviphoton 1400:Stop squark 1108:Down (quark 991:22 December 718:−1.91  706:+1.91  555:antineutron 359:Positronium 310:Antineutron 208:+1.91  55:Composition 27:Antineutron 2126:Antimatter 2120:Categories 1799:Heptaquark 1760:Superatoms 1693:Pentaquark 1683:Tetraquark 1665:Quarkonium 1555:Antiproton 1456:Leptoquark 1391:Neutralino 1153:antiquark) 1143:antiquark) 1138:Top (quark 1133:antiquark) 1123:antiquark) 1113:antiquark) 1103:antiquark) 1072:Elementary 797:2024-05-18 793:. May 2024 769:References 753:Antimatter 674:beta decay 662:antiproton 647:antiproton 639:Bruce Cork 621:Background 603:antiquarks 503:Paul Dirac 492:Scientists 364:Quarkonium 320:Antihelium 305:Antiproton 275:Antimatter 157:Bruce Cork 153:Discovered 72:Statistics 48:antibaryon 2037:Particles 1982:Particles 1941:Polariton 1931:Plasmaron 1901:Dropleton 1794:Hexaquark 1765:Molecules 1753:Protonium 1630:Phi meson 1615:Rho meson 1587:Xi baryon 1519:Composite 1355:Gravitino 1098:Up (quark 962:19 August 933:19 August 875:0902.0834 845:123156830 77:fermionic 2141:Nucleons 2013:timeline 1865:R-hadron 1820:Glueball 1804:Skyrmion 1738:Tauonium 1451:Inflaton 1446:Graviton 1426:Curvaton 1396:Sfermion 1386:Higgsino 1381:Chargino 1342:Gauginos 1201:Neutrino 1186:Antimuon 1176:Positron 1171:Electron 1081:Fermions 900:15126201 747:See also 732:). Here 704:. It is 670:neutrino 668:, and a 666:positron 660:into an 631:Bevatron 613:and two 300:Positron 2136:Neutron 2131:Baryons 2001:Related 1972:Baryons 1946:Polaron 1936:Plasmon 1911:Fracton 1906:Exciton 1860:Diquark 1855:Pomeron 1830:T meson 1787:Baryons 1748:Pionium 1733:Muonium 1660:D meson 1655:B meson 1560:Neutron 1545:Nucleon 1537:Baryons 1528:Hadrons 1491:Tachyon 1466:Majoron 1431:Dilaton 1360:Photino 1196:Antitau 1163:Leptons 880:Bibcode 825:Bibcode 739:is the 629:at the 563:neutron 561:of the 557:is the 424:Devices 354:Pionium 344:Muonium 264:⁠ 252:⁠ 247:Isospin 240:⁠ 228:⁠ 170:939.565 147:neutron 109:gravity 1977:Mesons 1926:Phonon 1921:Magnon 1843:Others 1813:Mesons 1706:Others 1602:Mesons 1550:Proton 1414:Others 1369:Others 1350:Gluino 1284:Scalar 1264:Photon 1247:Bosons 1090:Quarks 898:  843:  607:quarks 480:Weapon 179:  159:(1956) 115:Symbol 97:strong 86:hadron 83:Family 1965:Lists 1956:Trion 1951:Roton 1891:Anyon 1718:Atoms 1481:Preon 1421:Axion 1376:Axino 1269:Gluon 1256:Gauge 982:(PDF) 953:(PDF) 896:S2CID 870:arXiv 841:S2CID 658:decay 397:Comet 1916:Hole 1743:Onia 1650:Kaon 1610:Pion 1181:Muon 993:2009 964:2010 935:2010 791:NIST 730:spin 696:The 664:, a 591:mass 553:The 513:CERN 475:Fuel 464:Uses 327:Onia 223:Spin 182:MeV/ 177:(48) 165:Mass 101:weak 63:, 2 1191:Tau 888:doi 833:doi 821:104 676:of 172:421 2122:: 984:. 955:. 921:. 917:. 894:. 886:. 878:. 866:36 864:. 839:. 831:. 819:. 815:. 789:. 785:. 743:. 617:. 175:94 107:, 103:, 99:, 59:1 1689:) 1685:( 1402:) 1398:( 1056:e 1049:t 1042:v 1025:" 995:. 966:. 937:. 902:. 890:: 882:: 872:: 847:. 835:: 827:: 800:. 737:N 734:Îź 724:N 721:Îź 712:N 709:Îź 633:( 575:n 542:e 535:t 528:v 261:2 258:/ 255:1 237:2 234:/ 231:1 214:N 211:Îź 197:0 184:c 127:n 23:.

Index

Antineutrinos

antibaryon
Composition
up antiquark
down antiquarks
Statistics
fermionic
Interactions
strong
weak
electromagnetic
gravity
Antiparticle
neutron
Bruce Cork
Mass
MeV/c
Electric charge
Magnetic moment
ÎźN
Spin
Isospin
Antimatter
A Feynman diagram showing the annihilation of an electron and a positron (antielectron), creating a photon that later decays into an new electron–positron pair.
Antiparticles
Positron
Antiproton
Antineutron
Antihydrogen

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