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  1. Outputs

Measurement of Prompt D0, Λc+, and Σc0, ++ (2455) Production in Proton-Proton Collisions at √s = 13 TeV

Academic Article
Publication Date:
2022
abstract:
The pT-differential production cross sections of prompt D0, Λc+, and Σc0,++(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at s=13 TeV. This is the first measurement of Σc0,++ production in hadronic collisions. Assuming the same production yield for the three Σc0,+,++ isospin states, the baryon-to-meson cross section ratios Σc0,+,++/D0 and Λc+/D0 are calculated in the transverse momentum (pT) intervals 2<12 and 1<24 GeV/c. Values significantly larger than in e+e- collisions are observed, indicating for the first time that baryon enhancement in hadronic collisions also extends to the Σc. The feed-down contribution to Λc+ production from Σc0,+,++ is also reported and is found to be larger than in e+e- collisions. The data are compared with predictions from event generators and other phenomenological models, providing a sensitive test of the different charm-hadronization mechanisms implemented in the models.
Iris type:
1.1 Articolo in rivista
List of contributors:
Acharya, S.; Adamova, D.; Adler, A.; Adolfsson, J.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S.; Ahuja, I.; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S.; Aleksandrov, D.; Alessandro, B.; Alfanda, H.; Alfaro Molina, R.; Ali, B.; Ali, Y.; Alici, A.; Alizadehvandchali, N.; Alkin, A.; Alme, J.; Alt, T.; Altenkamper, L.; Altsybeev, I.; Anaam, M.; Andrei, C.; Andreou, D.; Andronic, A.; Angeletti, M.; Anguelov, V.; Antinori, F.; Antonioli, P.; Anuj, C.; Apadula, N.; Aphecetche, L.; Appelshauser, H.; Arcelli, S.; Arnaldi, R.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Aziz, S.; Azmi, M.; Badala, A.; Baek, Y.; Bai, X.; Bailhache, R.; Bailung, Y.; Bala, R.; Balbino, A.; Baldisseri, A.; Balis, B.; Ball, M.; Banerjee, D.; Barbera, R.; Barioglio, L.; Barlou, M.; Barnafoldi, G. G.; Barnby, L.; Barret, V.; Bartels, C.; Barth, K.; Bartsch, E.; Baruffaldi, F.; Bastid, N.; Basu, S.; Batigne, G.; Batyunya, B.; Bauri, D.; Bazo Alba, J.; Bearden, I.; Beattie, C.; Belikov, I.; Bell Hechavarria, A.; Bellini, F.; Bellwied, R.; Belokurova, S.; Belyaev, V.; Bencedi, G.; Beole, S.; Bercuci, A.; Berdnikov, Y.; Berdnikova, A.; Bergmann, L.; Besoiu, M.; Betev, L.; Bhaduri, P.; Bhasin, A.; Bhat, M.; Bhattacharjee, B.; Bhattacharya, P.; Bianchi, L.; Bianchi, N.; Bielcik, J.; Bielcikova, J.; Biernat, J.; Bilandzic, A.; Biro, G.; Biswas, S.; Blair, J.; Blau, D.; Blidaru, M.; Blume, C.; Boca, G.; Bock, F.; Bogdanov, A.; Boi, S.; Bok, J.; Boldizsar, L.; Bolozdynya, A.; Bombara, M.; Bond, P.; Bonomi, G.; Borel, H.; Borissov, A.; Bossi, H.; Botta, E.; Bratrud, L.; Braun-Munzinger, P.; Bregant, M.; Broz, M.; Bruno, G.; Buckland, M.; Budnikov, D.; Buesching, H.; Bufalino, S.; Bugnon, O.; Buhler, P.; Buthelezi, Z.; Butt, J.; Bysiak, S.; Caffarri, D.; Cai, M.; Caines, H.; Caliva, A.; Calvo Villar, E.; Camacho, J.; Camacho, R.; Camerini, P.; Canedo, F.; Carnesecchi, F.; Caron, R.; Castillo Castellanos, J.; Casula, E.; Catalano, F.; Ceballos Sanchez, C.; Chakraborty, P.; Chandra, S.; Chapeland, S.; Chartier, M.; Chattopadhyay, S.; Chattopadhyay, S.; Chauvin, A.; Chavez, T.; Cheshkov, C.; Cheynis, B.; Chibante Barroso, V.; Chinellato, D.; Cho, S.; Chochula, P.; Christakoglou, P.; Christensen, C.; Christiansen, P.; Chujo, T.; Cicalo, C.; Cifarelli, L.; Cindolo, F.; Ciupek, M.; Clai, G.; Cleymans, J.; Colamaria, F.; Colburn, J.; Colella, D.; Collu, A.; Colocci, M.; Concas, M.; Conesa Balbastre, G.; Conesa del Valle, Z.; Contin, G.; Contreras, J.; Coquet, M.; Cormier, T.; Cortese, P.; Cosentino, M.; Costa, F.; Costanza, S.; Crochet, P.; Cuautle, E.; Cui, P.; Cunqueiro, L.; Dainese, A.; Damas, F.; Danisch, M.; Danu, A.; Das, I.; Das, P.; Das, P.; Das, S.; Dash, S.; De, S.; De Caro, A.; de Cataldo, G.; De Cilladi, L.; de Cuveland, J.; De Falco, A.; De Gruttola, D.; De Marco, N.; De Martin, C.; De Pasquale, S.; Deb, S.; Degenhardt, H.; Deja, K.; Dello Stritto, L.; Delsanto, S.; Deng, W.; Dhankher, P.; Di Bari, D.; Di Mauro, A.; Diaz, R.; Dietel, T.; Ding, Y.; Divia, R.; Dixit, D.; Djuvsland, I. O.; Dmitrieva, U.; Do, J.; Dobrin, A.; Donigus, B.; Dordic, O.; Dubey, A.; Dubla, A.; Dudi, S.; Dukhishyam, M.; Dupieux, P.; Dzalaiova, N.; Eder, T.; Ehlers, R.; Eikeland, V.; Eisenhut, F.; Elia, D.; Erazmus, B.; Ercolessi, F.; Erhardt, F.; Erokhin, A.; Ersdal, M.; Espagnon, B.; Eulisse, G.; Evans, D.; Evdokimov, S.; Fabbietti, L.; Faggin, M.; Faivre, J.; Fan, F.; Fantoni, A.; Fasel, M.; Fecchio, P.; Feliciello, A.; Feofilov, G.; Fernandez Tellez, A.; Ferrero, A.; Ferretti, A.; Feuillard, V.; Figiel, J.; Filchagin, S.; Finogeev, D.; Fionda, F.; Fiorenza, G.; Flor, F.; Flores, A.; Foertsch, S.; Foka, P.; Fokin, S.; Fragiacomo, E.; Frajna, E.; Fuchs, U.; Funicello, N.; Furget, C.; Furs, A.; Gaardhoje, J.; Gagliardi, M.; Gago, A.; Gal, A.; Galvan, C.; Ganoti, P.; Garabatos, C.; Garcia, J.; Garcia-Solis, E.; Garg, K.; Gargiulo, C.; Garibli, A.; Garner, K.; Gasik, P.; Gauger, E.; Gautam, A.; Gay Ducati, M.; Germain, M.; Ghosh, P.; Ghos
Authors of the University:
COSTANZA SUSANNA
Handle:
https://iris.unipv.it/handle/11571/1515663
Published in:
PHYSICAL REVIEW LETTERS
Journal
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