First Measurement of Charm Production in its Fixed-Target Configuration at the LHC
| Parent link: | Physical Review Letters Vol. 122, iss. 13.— 2019.— [132002, 12 p.] |
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| Corporate Authors: | , |
| Other Authors: | , , , , , |
| Summary: | Title screen The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/ψ and D0 mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon center-of-mass energies of √sNN=86.6 and 110.4 GeV, respectively. The J/ψ and D0 production cross sections in pHe collisions in the rapidity range [2, 4.6] are found to be σJ/ψ=652±33(stat)±42(syst) nb/nucleon and σD0=80.8±2.4(stat)±6.3(syst) μb/nucleon, where the first uncertainty is statistical and the second is systematic. No evidence for a substantial intrinsic charm content of the nucleon is observed in the large Bjorken-x region. |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/64953 https://doi.org/10.1103/PhysRevLett.122.132002 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663333 |