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XII. Novi standardni model
MASE FERMIONA
MASE NEUTRINA
ČAROLIJA i ENIGMA
HIGGSOVOG SEKTORA
MASE FERMIONA i SM NAKON OTKRIĆA
OSCILACIJA NEUTRINA I POTVRDE HIGGSA
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MASE FERMIONA ILI YUKAWINA VEZANJA
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Obitelj fermiona realizirana s pet reprezentacija SM-a
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MASE LEPTONA –u unitarnom bažd.
Uz umnožak dva dubleta
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Feynmanovo pravilo Yukawinog vrha
Odražava afinitet fermiona na higgs
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MASE KVARKOVA – donjih i gornjih, za realno Yukawino vezanje
Uz konjugiran dublet
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Raspad Higgsovog bozona na fermionsko-antiferminski par
Invarijantna amplituda
čije kvadriranje, sumiranje po polarizacijama (i bojama) i integracija po 2-čestičnom faznom prostoru, daje parcijalnu širinu raspada:
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Miješanje kvarkovskih generacija
u unit. bažd. kompleksne Yukawine (3x3) matrice vode na matrice masa
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BAZA KVARKOVSKIH MASA – dijagonalizacijom biunitarnim transform.
Dijagonalizacija masa/Yukawinih matrica
Dijagonalna i realna Higgsova vezanja u bazi masa
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CKM miješanje u nabijenoj struji & okusno dijagonalna neutralna
Univerzalno vezanje fotona i Z bozona: GIM i granasta odsutnost FCNC
CKM matrica
je unitarna
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Za više obitelji (generacija) -općenito Yukawin lagrangian nije dijagonalan u okusu
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Pogodan je odabir slabe baze u kojoj su gornji kvarkovi masena stanja. Izospinski dubleti tada imaju zapis
gdje je u prostoru generacija
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“STANDARDNA” PARAMETRIZACIJA – POGODNA ZA POOPĆENJE NA n>3
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POSAO FIZIKE OKUSA
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6 ZAHTJEVA UNITARNOSTI: 3 “GORNJA” TROKUTA
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& 3 “donja” UNITARNA TROKUTA
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Miješanje leptona
(Pontecorvo-Maki-Nakagawa-Sakata)
prva opipljiva naznaka fizike izvan
standardnog modela
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Kao za kvarkove, moguć je odabir slabe baze u kojoj su nabijeni leptoni masena stanja. Izospinski dubleti tada imaju zapis
tako da PMNS matrica povezuje okusna stanja neutrina s masenim (1,2,3)
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NORMALNA I INVERZNA HIJERARHIJA MASA NEUTRINA
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Neutrinske mase kao opipljivo odstupanje od SM-a Fig.Murayama’08
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PERIODIČKA TABLICA SM-a
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NAKON OTKRIĆA HIGGSA
Problem kozmološke konstante
Problem prirodnosti higgsa
Problem vakuumske stabilnosti
3 parametra Higgsovog potencijala
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Diracove mase neutrina ukoliko postoje i desni neutrini
PMNS miješanje okusnih i masenih (1,2,3) stanja, pri čemu male mase neutrina
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Weinbergov operator dim 5, generiran česticama nove fizike skale Λ, daje Majoraninu masu neutrina
nakon SSB, iz korektno napisanog operatora izraženog konjugiranim “L” spinorom koji se Lor-transf. kao “R”
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