Observation of structure in the J/ψ-pair mass spectrum
Using proton-proton collision data at centre-of-mass energies of √s = 7; 8 and 13 TeV recorded by the ffiffi LHCb experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 9 fb , the invariant mass spectrum of J/w pairs is studied. A narrow structure around 6:9 GeV=c mat...
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| Format: | Article |
| Language: | English |
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Elsevier BV
2022
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| Online Access: | https://hdl.handle.net/1721.1/142456 |