dc.date.accessioned | 2023-02-02T16:27:48Z | |
dc.date.available | 2023-02-02T16:27:48Z | |
dc.date.created | 2022-05-12T13:11:49Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Acharya, Shreyasi Adamová, Dagmar Adler, Alexander Adolfsson, Jonatan Aglieri Rinella, Gianluca Agnello, Michelangelo Agrawal, Nikita Ahammed, Zubayer Ahmad, Shafiq F. Ahn, Sang Un Alme, Johan Altenkaemper, Lucas Djuvsland, Øystein Eikeland, Viljar Nilsen Ersdal, Magnus Rentsch Fionda, Fiorella Maria Celeste Grøttvik, Ola Slettevoll Lofnes, Ingrid Mckibben Nystrand, Joakim Ingemar Rehman, Attiq Ur Röhrich, Dieter Sætre, Jon-Are Tambave, Ganesh Jagannath Ullaland, Kjetil Wagner, Boris Yang, Shiming Yuan, Shiming Arsene, Ionut Cristian Dordic, Olja Malik, Qasim Waheed Neagu, Alexandra Richter, Matthias Røed, Ketil Skaali, Toralf Bernhard Storehaug, Ida Torkjellsdatter Tveter, Trine Spedstad Wikne, Jon Christopher Helstrup, Håvard Hetland, Kristin Fanebust Kileng, Bjarte Nesbø, Simon Voigt Reme-Ness, Haakon André Storetvedt, Maksim Melnik Langøy, Rune Lien, Jørgen André Ahuja, Ishaan Akbar, Zaenai Akindinov, Alexander Al-Turany, Mohammed Alam, Sk Noor ALICE, Collaboration . Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC. Physical Review D. 2022, 105:L011103, 1-14 | |
dc.identifier.uri | http://hdl.handle.net/10852/99591 | |
dc.description.abstract | Recent pT-integrated cross-section measurements of the ground-state charm mesons and baryons, D0, D+, D+s, Λ+c, and Ξ0c, are used to evaluate the charm fragmentation fractions and production cross section per unit of rapidity at midrapidity (|y|<0.5), in pp collisions at √s=5.02 TeV at the LHC. The latter is dσc¯c/dy||y|<0.5=1165±44(stat)+134−101(syst) μb. These measurements were obtained for the first time in hadronic collisions at the LHC, including the charm baryon states, recently measured by ALICE at midrapidity. The charm fragmentation fractions differ significantly from the values measured in e+e− and ep collisions, providing evidence of the dependence of the parton-to-hadron fragmentation fractions on the collision system, indicating that the assumption of their universality is not supported by the measured cross sections. An increase of a factor of about 3.3 for the fragmentation fraction for the Λ+c with a significance of 5σ between the values obtained in pp collisions and those obtained in e+e− (ep) collisions is reported. The fragmentation fraction for the Ξ0c was obtained for the first time in any collision system. The measured fragmentation fractions were used to update the c¯c cross sections per unit of rapidity at |y|<0.5 at √s=2.76 and 7 TeV, which are about 40% higher than the previously published results. The data were compared with perturbative-QCD calculations and lie at the upper edge of the theoretical bands. | |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC | |
dc.title.alternative | ENEngelskEnglishCharm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC | |
dc.type | Journal article | |
dc.creator.author | Acharya, Shreyasi | |
dc.creator.author | Adamová, Dagmar | |
dc.creator.author | Adler, Alexander | |
dc.creator.author | Adolfsson, Jonatan | |
dc.creator.author | Aglieri Rinella, Gianluca | |
dc.creator.author | Agnello, Michelangelo | |
dc.creator.author | Agrawal, Nikita | |
dc.creator.author | Ahammed, Zubayer | |
dc.creator.author | Ahmad, Shafiq F. | |
dc.creator.author | Ahn, Sang Un | |
dc.creator.author | Alme, Johan | |
dc.creator.author | Altenkaemper, Lucas | |
dc.creator.author | Djuvsland, Øystein | |
dc.creator.author | Eikeland, Viljar Nilsen | |
dc.creator.author | Ersdal, Magnus Rentsch | |
dc.creator.author | Fionda, Fiorella Maria Celeste | |
dc.creator.author | Grøttvik, Ola Slettevoll | |
dc.creator.author | Lofnes, Ingrid Mckibben | |
dc.creator.author | Nystrand, Joakim Ingemar | |
dc.creator.author | Rehman, Attiq Ur | |
dc.creator.author | Röhrich, Dieter | |
dc.creator.author | Sætre, Jon-Are | |
dc.creator.author | Tambave, Ganesh Jagannath | |
dc.creator.author | Ullaland, Kjetil | |
dc.creator.author | Wagner, Boris | |
dc.creator.author | Yang, Shiming | |
dc.creator.author | Yuan, Shiming | |
dc.creator.author | Arsene, Ionut Cristian | |
dc.creator.author | Dordic, Olja | |
dc.creator.author | Malik, Qasim Waheed | |
dc.creator.author | Neagu, Alexandra | |
dc.creator.author | Richter, Matthias | |
dc.creator.author | Røed, Ketil | |
dc.creator.author | Skaali, Toralf Bernhard | |
dc.creator.author | Storehaug, Ida Torkjellsdatter | |
dc.creator.author | Tveter, Trine Spedstad | |
dc.creator.author | Wikne, Jon Christopher | |
dc.creator.author | Helstrup, Håvard | |
dc.creator.author | Hetland, Kristin Fanebust | |
dc.creator.author | Kileng, Bjarte | |
dc.creator.author | Nesbø, Simon Voigt | |
dc.creator.author | Reme-Ness, Haakon André | |
dc.creator.author | Storetvedt, Maksim Melnik | |
dc.creator.author | Langøy, Rune | |
dc.creator.author | Lien, Jørgen André | |
dc.creator.author | Ahuja, Ishaan | |
dc.creator.author | Akbar, Zaenai | |
dc.creator.author | Akindinov, Alexander | |
dc.creator.author | Al-Turany, Mohammed | |
dc.creator.author | Alam, Sk Noor | |
dc.creator.author | ALICE, Collaboration | |
cristin.unitcode | 185,15,4,60 | |
cristin.unitname | Høyenergifysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 2023921 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review D&rft.volume=105:L011103&rft.spage=1&rft.date=2022 | |
dc.identifier.jtitle | Physical Review D | |
dc.identifier.volume | 105 | |
dc.identifier.issue | 1 | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevD.105.L011103 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2470-0010 | |
dc.type.version | PublishedVersion | |
cristin.articleid | L011103 | |