Astrophysical neutrinos nrog cov zog no tuaj yeem tsim los ntawm siab-zog sib tsoo ntawm nuclei lossis nruab nrab ntawm protons thiab photonsuas tsim cov khoom nruab nrab (pions thiab muons), uas tuaj yeem lwj mus rau hauv neutrinos..
neutrinos tuaj qhov twg?
Neutrinos yog cov khoom tseem ceeb uas yog thawj zaug tsim nyob rau thawj thib ob ntawm lub ntiaj teb thaum ntxov, ua ntej txawm tias atoms tuaj yeem tsim. Lawv kuj tseem raug tsim tawm tas li nyob rau hauv cov tshuaj tiv thaiv nuclear ntawm cov hnub qub, zoo li peb lub hnub, thiab cov tshuaj tiv thaiv nuclear hauv ntiaj teb no.
hnub ci neutrinos tsim li cas?
Neutrinos yog yug thaum lub sijhawm txheej txheem ntawm kev sib xyaw ua ke hauv lub hnub. Hauv fusion, protons (lub nucleus los ntawm cov ntsiab lus yooj yim tshaj plaws, hydrogen) fuse ua ke los tsim cov khoom hnyav dua, helium. Qhov no tso tawm neutrinos thiab lub zog uas thaum kawg yuav ncav cuag lub ntiaj teb li lub teeb thiab cua sov.
Neutrinos detectors feem ntau tsim nyob qhov twg?
Neutrino detectors feem ntau yog tsim underground, cais lub ntes ntawm cosmic rays thiab lwm yam hluav taws xob keeb kwm yav dhau. Lub teb ntawm neutrino astronomy tseem muaj ntau heev nyob rau hauv nws cov me nyuam mos - tsuas yog paub tseeb hais tias extraterrestrial qhov chaw raws li ntawm 2018 yog lub hnub thiab lub supernova 1987A nyob rau hauv lub loj Magellanic huab nyob ze.
Neutrinos puas tuaj yeem tsim tau?
Txhawm rau kawm neutrinos tau zoo dua, cov kws tshawb fawb tsim cov kab hluav taws xob siab siv neutrino sivproton accelerators. Tsuas yog ob peb lub chaw soj nstuam hauv ntiaj teb tuaj yeem tsim cov kab neutrino xws li: J-PARC chaw sim hauv Nyij Pooj, lub chaw tshawb fawb CERN hauv Tebchaws Europe thiab Fermi National Accelerator Laboratory hauv Tebchaws Meskas.
