14 relations: Belle experiment, Exotic hadron, Exotic meson, KEK, LHCb, Meson, Parity (physics), Resonance (particle physics), Statistical significance, Tetraquark, Total angular momentum quantum number, X(3872), Y(4140), Zc(3900).

## Belle experiment

The Belle experiment is a particle physics experiment conducted by the Belle Collaboration, an international collaboration of more than 400 physicists and engineers investigating CP-violation effects at the High Energy Accelerator Research Organisation (KEK) in Tsukuba, Ibaraki Prefecture, Japan.

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## Exotic hadron

Exotic hadrons are subatomic particles composed of quarks and gluons, but which do not fit into the usual scheme of hadrons.

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## Exotic meson

Non-quark model mesons include.

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## KEK

, known as KEK, is a national organization whose purpose is to operate the largest particle physics laboratory in Japan, which is situated in Tsukuba, Ibaraki prefecture.

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## LHCb

The LHCb (standing for "Large Hadron Collider beauty") experiment is one of seven particle physics detector experiments collecting data at the Large Hadron Collider accelerator at CERN.

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## Meson

In particle physics, mesons are hadronic subatomic particles composed of one quark and one antiquark, bound together by the strong interaction.

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## Parity (physics)

In quantum physics, a parity transformation (also called parity inversion) is the flip in the sign of one spatial coordinate.

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## Resonance (particle physics)

In particle physics, a resonance is the peak located around a certain energy found in differential cross sections of scattering experiments.

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## Statistical significance

In statistics, statistical significance (or a statistically significant result) is attained when a ''p''-value is less than the significance level.

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## Tetraquark

A tetraquark, in particle physics, is an exotic meson composed of four valence quarks.

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## Total angular momentum quantum number

In quantum mechanics, the total angular momentum quantum number parameterises the total angular momentum of a given particle, by combining its orbital angular momentum and its intrinsic angular momentum (i.e., its spin).

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## X(3872)

The X(3872) is an anomalous particle with a mass of 3871.68 MeV/c2 which does not fit into the quark model because of its quantum numbers.

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## Y(4140)

The Y(4140) particle is an electrically neutral particle that is about 4.4 times heavier than the proton.

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## Zc(3900)

The Zc(3900) is a hadron, a type of subatomic particle made of quarks, believed to be the first tetraquark that has been observed experimentally.

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