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High Energy, Nuclear, Particle Physics
How Does Inverse Kinematics Benefit Cross-Section Measurements?
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[QUOTE="mfb, post: 5440355, member: 405866"] Imagine you want to study the reaction at an energy of e.g. 100 keV, and for simplification let's assume the reaction does not need or release energy. You can shoot a proton with an energy of 100 keV on nitrogen, then you get (typically) a neutron with about 5 keV and oxygen with 95 keV. At those energies both get stopped really fast, so you need an extremely thin target, and even then most of your products will lose some notable energy in the material. You can also shoot nitrogen with an energy of 1.4 MeV on a proton, then you typically get a neutron with an energy of 100 keV and oxygen with an energy of about 1.3 MeV. That allows them to get out of the target much more easily. At tens of GeV, everything will leave the target, sure, but the point of measuring the threshold energy is to have energies as low as possible. [/QUOTE]
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High Energy, Nuclear, Particle Physics
How Does Inverse Kinematics Benefit Cross-Section Measurements?
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