The X ± and Y ± bosons are defined respectively as the six Q = ± 4 / 3 and the six Q = ± 1 / 3 components of the final two terms of the adjoint 24 representation of SU(5) as it transforms under the standard model's group:Ģ4 → ( 8, 1 ) 0 ⊕ ( 1, 3 ) 0 ⊕ ( 1, 1 ) 0 ⊕ ( 3, 2 ) − 5 6 ⊕ ( 3 ¯, 2 ) 5 6 X bosons rotate between a color index and the weak isospin-up index, while Y bosons rotate between a color index and the weak isospin-down index. − pair is created out of energy, and they follow the two branches described above: Different branching ratios between the X boson and its antiparticle (as is the case with the K-meson) would explain baryogenesis. In these reactions, neither the lepton number ( L) nor the baryon number ( B) is separately conserved, but the combination B − L is. Similar decay products exist for the other quark-lepton generations. The first product of each decay has left-handed chirality and the second has right-handed chirality, which always produces one fermion with the same handedness that would be produced by the decay of a W boson, and one fermion with contrary handedness ("wrong handed"). Where the two decay products in each process have opposite chirality,Ī Y boson would have the following three decay modes: : 442 Since some grand unified theories such as the Georgi–Glashow model predict a half-life less than this, then the existence of X and Y bosons, as formulated by this particular model, remain hypothetical.Īn X boson would have the following two decay modes: : 442 However, the Hyper-Kamiokande has put a lower bound on the proton's half-life as around 10 34 years. Significantly, the X and Y bosons couple quarks (constituents of protons and others) to leptons (such as positrons), allowing violation of the conservation of baryon number thus permitting proton decay. Since the X and Y boson mediate the grand unified force, they would have unusual high mass, which requires more energy to create than the reach of any current particle collider experiment. In particle physics, the X and Y bosons (sometimes collectively called " X bosons" : 437 ) are hypothetical elementary particles analogous to the W and Z bosons, but corresponding to a unified force predicted by the Georgi–Glashow model, a grand unified theory (GUT). Y: two quarks, or one antiquark and one charged antilepton, or one antiquark and one antineutrino X: two quarks, or one antiquark and one charged antilepton For mesons with the same names, see XYZ particle. Sega Classics Collection (Puzzle & Action: Tant-R & Bonanza Bros.This article is about bosons of a hypothetical new interaction.Jackie Chan Stuntmaster Super Troll Islands.Star Wars Episode I: The Phantom Menace.Build-A-Bear Workshop: A Friend Fur All Seasons.The Addams Family: Pugsley's Scavenger Hunt.Teenage Mutant Ninja Turtles: Out of the Shadows.Skate or Die 2: The Search for Double Trouble.Mary-Kate and Ashley: Magical Mystery Mall.The New Adventures of Mary-Kate & Ashley.Mary-Kate & Ashley: Sweet 16 - Licensed to Drive.The Legend of Zelda: Twilight Princess.Double Switch: 25th Anniversary Edition.Leisure Suit Larry: Wet Dreams Don’t Dry The House of the Dead Overkill.Courseware Complete Kit for Cisco 200-301 CCNA (Digital) with NetSim and ExSim-Max. Courseware for Cisco 200-301 CCNA (Paperback) plus NetSim. The Garfield Show: Threat of the Space Lasagna Courseware for Cisco 200-301 CCNA (Digital) plus NetSim.Muppet Adventure: Chaos at the Carnival.Ninja Warriors: Stainless Steel Heroes.The Legend of Zelda:Breath of the Wild.Uses features from the ILC+ mod (and some new ones) features: 6 new levels. Tennis Paper Mario: The Thousand-Year Door After a year without update, the hardmode mod is back with a new patch Improvements over the old hardmode mod: The levels are no longer just the normal levels with a lower draw distance.SpongeBob SquarePants: Battle for Bikini Bottom.Nancy Drew: The White Wolf of Icicle Creek.The Legend of Zelda: A Link Between Worlds Boson X is a fast-paced rotational runner set in a particle accelerator.- a brilliant, twitchy arcade masterpiece that pulsates with originality and heart.The Legend of Zelda: The Wind Waker HD.The Great Circus Mystery Starring Mickey & Minnie 3 Kid Icarus Batman Castlevania: Dracula X Maniac Mansion The Legend of Zelda: The Wind Waker HD Super Mario World Super Metroid Silent.Donkey Kong Country 2: Diddy's Kong Quest.Universal Studios Theme Parks Adventure.The Legend of Zelda: A Link to the Past.
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