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Pair production often refers specifically to a photon creating an electron–positron pair near a nucleus. As energy must be conserved, for pair production to occur, the incoming energy of the photon must be above a threshold of at least the total rest mass energy of the two particles created. (As the electron is the lightest, hence, lowest ...
To create an electron-positron pair, the total energy of the photons, in the rest frame, must be at least 2m e c 2 = 2 × 0.511 MeV = 1.022 MeV (m e is the mass of one electron and c is the speed of light in vacuum), an energy value that corresponds to soft gamma ray photons.
Twisted pair cabling is a type of communications cable in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic ...
Pair programming Pair Programming, 2009. Pair programming is a software development technique in which two programmers work together at one workstation. One, the driver, writes code while the other, the observer or navigator, [1] reviews each line of code as it is typed in.
Fool-proof quinoa and green beans combine to make a side dish that adds crunch and heft to salmon and can hold up on a buffet or a picnic. Super-easy, two-step sides like this give you more time ...
Concentration may be played solo either as a leisurely exercise, or with the following scoring method: play as normal, but keep track of the number of non-matching pairs turned over (this may be done using poker chips, pennies or by making marks on a sheet of paper). The object is to clear the tableau in the fewest turns, or to get the lowest ...
Here, Sofia Vergara wore a basic pair of black leggings with a zebra print top and red undershirt, along with some cool oversized sunnies. Perfect. Event-Ready Attire. Marc Piasecki/GC Images.
Although they share the category of “sausage,” there’s a huge difference between the flavor of the protein in a ballpark hot dog, a deep-dish Italian sausage pizza, a chorizo and cheese ...