Taw qhia txog kev sib tsoo txoj kev xav
Kev sib piv lub tswv yim kawm txog kev cuam tshuam ntawm cov khoom seem. Qhov theoretical lub hauv paus ntawm kev siv tshuab yog txoj cai ntawm kev txuag ntawm lub zog thiab txoj cai ntawm kev txuag lub zog. Qhov sib txawv ntawm cov khoom siv ua rau kev sib tsoo lub tswv yim muab faib ua: kev sib tsoo ntawm atoms, kev sib tsoo ntawm ntshav thiab lwm yam. Tsis tas li ntawd suav nrog kev sib cuam tshuam ntawm cov hais: sib sau ntawm cov hluav taws xob nuclei, kev rhuav tshem ntawm cov hluav taws xob zoo thiab tsis zoo, qhov kev puas tsuaj ntawm them pi mesons, qhov kev tawm tsam ntawm neutrons, kev sib cuam tshuam ntawm nucleon N thiab ons mesons, lub photon gamma thiab electron e. - Ntawm tawg thiab lwm yam.