Measurement of hadron composition in charged jets from pp collisions with the ALICE experiment

Lu, X. -G. and Abelev, B. and Adam, J. and Adamová, D. and Aggarwal, M. M. and Aglieri, Rinella G. and Agnello, M. and Agostinelli, A. and Agrawal, N. and Ahammed, Z. and Ahmad, N. and Ahmed, I. and Ahn, S. U. and Ahn, S. A. and Aimo, I. and Aiola, S. and Ajaz, M. and Akindinov, A. and Alam, S. N. and Aleksandrov, D. and Alessandro, B. and Alexandre, D. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and Altinpinar, S. and Altsybeev, I. and Alves, Garcia Prado C. and Andrei, C. and Barnaföldi, Gergely Gábor and Bencédi, Gyula and Berényi, Dániel and Boldizsár, László and Dénes, Ervin and Hamar, Gergő and Kiss, Gábor and Varga-Kőfaragó, Mónika and Lévai, Péter and Oláh, László and Pochybova, Sona (2014) Measurement of hadron composition in charged jets from pp collisions with the ALICE experiment. NUCLEAR PHYSICS A, 931. pp. 428-432. ISSN 0375-9474

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Abstract

We report the first measurement of charged pion, kaon and (anti-)proton production in jets from hadron colliders. The measurement was carried out with the ALICE detector using 2 × 108 minimum bias pp collisions at a centre-of-mass energy of √s=7 TeV at the LHC. We present the π, K and p transverse momentum (pT) spectra, as well as the spectra of the reduced momen- tum (zch ≡ ptrack T /pch T, jet), in charged jets of pT between 5–20 GeV/c. The measurement is compared to Monte Carlo calculations.

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