A problem by Mahesh SK

Level pending

If a Higgs boson mH with a speed β=v/c decays into a pair photons, then the invariant mass of the photon pair is .. [the invariant mass of a system of two particles, with four-momenta p1 and p2 is (p1+p2)2 ]

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A problem by Mahesh SK

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 5 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.