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SEARCH In Brazil there are two particle accelerators, one located at the University of São Paulo (USP) and the other located inCampinas-SP, National Laboratory of Light Synchrotron (LNLS), pictured right. Try to do a survey dealing with the use of particle accelerators in Brazil. What are its applications? What organs fund research? How much do these searches? A good tip is to visit the site of the LNLS: www.lnls.br Another type of interaction for strange behavior ... With the advancement of studies on the core processes more linked to this were being discovered. One such process is the decay Beta ( .) The most common example of this type of decay is when a neutron disintegrates,turning a proton and an electron. The disintegration or decay,can be of two types: the disintegration where the nucleus of atomic number Z decays into a nucleus with atomic number Z descending +1, with the emission of an electron, and the disintegration , where a proton is transformed a neutron with the emission of a positron. Disintegration , the atomic number Z of the nucleus decreases by one. Initially, the particles emitted in these processes were called particles, laterit was discovered, it was electrons and positrons. Because the processes related to decayare so peculiar,it was understood that this was one of the fundamental interactions of matter. Supposedly this decay was caused by a force which is called "Weak Nuclear Force". Now, besides the electromagnetic and gravitational forces, we still have the weak nuclear force responsible for the decay . Are these the forces responsible for the stability (and instability) of matter? SEARCH In general, the idea of the existence of antiparticles seems fiction. Roughly speaking, when a particle meets its antiparticle, the pair ends up annihilating. Look, in a library or on the internet, examples of pairs particle / antiparticle and discuss with your teacher and classmates, the processes of annihilation. In case of difficulties do not be alarmed, as you read this text many scientists are also having trouble understanding these processes.
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TRAŽI U Brazilu postoje dva akceleratora čestica, jedna se nalazi na Sveučilištu u São Paulu (USP) i druge koje se nalazi uCampinas-SP, National Laboratory of Light Sinkrotrona (LNLS), na slici desno. Pokušajte napraviti anketu koja se bavi uporabe akceleratora u Brazilu. Koji su njegovi zahtjevi? Koji organi fond istraživanja? Koliko ove pretrage? Dobar savjet je da posjetite site od LNLS: www.lnls.br Drugi tip interakcije za čudno ponašanje ... S napretkom studija o temeljnim procesima više vežu za to su se otkrili. Jedan takav proces propadanja beta ( Najčešći primjer ove vrste propadanja je kad neutron raspada,pretvara u proton i jedan elektron. Raspad ili propadanje može biti od dvije vrste: raspada Gdje jezgra atomski broj Z propada u jezgri s atomski broj Z Z 1, uz emisiju elektrona, i raspad Gdje neutronska pretvara u proton s emisijom jednog pozitrona. Dezintegracija Atomski broj jezgre smanjuje za jedan. U početku, čestice emitiraju u tim procesima su pozvani čestica Kasnijeje otkriveno da je elektrona i pozitrona. Budući da su procesi vezani propadati su tako neobično, toje shvatio da je to temeljno interakcije materije. Navodno je ovo propadanje uzrokovano je snaga koja se zove "Slaba nuklearna sila". Sada, osim elektromagnetska i gravitacijska sila, još uvijek imaju slabu nuklearnu silu koja je odgovorna za propadanje Jesu li ovo snage odgovorne za stabilnost (i nestabilnosti) materije? TRAŽI U cjelini, ideja o postojanju antiparticles čini fantastika. Grubo govoreći, kada je čestica ispunjava svoje antičestica, par završi uništenja. Gledaj, u knjižnici ili na internetu, primjeri parova čestica / antičestica i razgovarati sa svojim učiteljem i kolege, procese anihilacije. U slučaju poteškoća ne uznemirujte se, kao što ste pročitali ovaj tekst mnogi znanstvenici također imaju problema s razumijevanjem tih procesa.