Publications [#383893] of Seog Oh

Papers Published

1. Acharya, S; Agarwal, A; Aglieri Rinella, G; Aglietta, L; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, S; Ahn, SU; Ahuja, I; Akindinov, A; Akishina, V; Al-Turany, M; Aleksandrov, D; Alessandro, B; Alfanda, HM; Alfaro Molina, R; Ali, B; Alici, A; Alizadehvandchali, N; Alkin, A; Alme, J; Alocco, G; Alt, T; Altamura, AR; Altsybeev, I; Alvarado, JR; Anaam, MN; Andrei, C; Andreou, N; Andronic, A; Andronov, E; Anguelov, V; Antinori, F; Antonioli, P; Apadula, N; Aphecetche, L; Appelshäuser, H; Arata, C; Arcelli, S; Arnaldi, R; Arneiro, JGMCA; Arsene, IC; Arslandok, M; Augustinus, A; Averbeck, R; Averyanov, D; Azmi, MD; Baba, H; Badalà, A; Bae, J; Bae, Y; Baek, YW; Bai, X; Bailhache, R; Bailung, Y; Bala, R; Baldisseri, A; Balis, B; Banoo, Z; Barbasova, V; Barile, F; Barioglio, L; Barlou, M; Barman, B; Barnaföldi, GG; Barnby, LS; Barreau, E; Barret, V; Barreto, L; Bartels, C; Barth, K; Bartsch, E; Bastid, N; Basu, S; Batigne, G; Battistini, D; Batyunya, B; Bauri, D; Bazo Alba, JL; Bearden, IG; Beattie, C; Becht, P; Behera, D; Belikov, I; Bell Hechavarria, ADC; Bellini, F; Bellwied, R; Belokurova, S; Beltran, LGE; Beltran, YAV; Bencedi, G; Bensaoula, A; Beole, S; Berdnikov, Y; Berdnikova, A; Bergmann, L; Besoiu, MG; Betev, L; Bhaduri, PP, Studying charm hadronisation into baryons with azimuthal correlations of Λc+ with charged particles in pp collisions at s=13 TeV, Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 868 (September, 2025) [doi]
   (last updated on 2026/01/17)

   Abstract:
   The distribution of angular correlations between prompt charm hadrons and primary charged particles in pp collisions is sensitive to the charm-quark hadronisation process. In this letter, charm-baryon correlations are measured for the first time by studying the azimuthal-angle difference between charged particles and prompt Λc⁺ baryons produced in pp collisions at a centre-of-mass energy of s=13 TeV, with the ALICE detector. Λc⁺ baryons are reconstructed at midrapidity (|y|<0.5) in the transverse-momentum interval 3T<16 GeV/c, and correlated with charged particles with pT>0.3 GeV/c and pseudorapidity |η|<0.8. For 3T^Λc+,D<5 GeV/c, the comparison with published measurements of D-meson and charged-particle correlations in the same collision system hints at a larger number of low-momentum particles associated with Λc⁺-baryon triggers than with D-meson triggers, both in the collinear and opposite directions with respect to the trigger particle. These differences can be quantified by the comparison of the properties of the near- and away-side correlation peaks, and are not reproduced by predictions of various Monte Carlo event generators, generally underpredicting the associated particle yields at pT^assoc<1 GeV/c. This tension between Λc⁺-baryon and D-meson associated peak yields could suggest a modified fragmentation of the charm quark, or a different hadronisation process, when a charm baryon is produced in the final state.