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Phys Rev Lett. 2010 Aug 13;105(7):072002. doi: 10.1103/PhysRevLett.105.072002. Epub 2010 Aug 12.

Midrapidity antiproton-to-proton ratio in pp collisons at sqrt[s]=0.9 and 7 TeV measured by the ALICE experiment.

Physical review letters

K Aamodt, N Abel, U Abeysekara, A Abrahantes Quintana, A Abramyan, D Adamová, M M Aggarwal, G Aglieri Rinella, A G Agocs, S Aguilar Salazar, Z Ahammed, A Ahmad, N Ahmad, S U Ahn, R Akimoto, A Akindinov, D Aleksandrov, B Alessandro, R Alfaro Molina, A Alici, E Almaráz Aviña, J Alme, T Alt, V Altini, S Altinpinar, C Andrei, A Andronic, G Anelli, V Angelov, C Anson, T Anticić, F Antinori, S Antinori, K Antipin, D Antończyk, P Antonioli, A Anzo, L Aphecetche, H Appelshäuser, S Arcelli, R Arceo, A Arend, N Armesto, R Arnaldi, T Aronsson, I C Arsene, A Asryan, A Augustinus, R Averbeck, T C Awes, J Aystö, M D Azmi, S Bablok, M Bach, A Badalà, Y W Baek, S Bagnasco, R Bailhache, R Bala, A Baldisseri, A Baldit, J Bán, R Barbera, G G Barnaföldi, L S Barnby, V Barret, J Bartke, F Barile, M Basile, V Basmanov, N Bastid, B Bathen, G Batigne, B Batyunya, C Baumann, I G Bearden, B Becker, I Belikov, R Bellwied, E Belmont-Moreno, A Belogianni, L Benhabib, S Beole, I Berceanu, A Bercuci, E Berdermann, Y 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Yuan, V Yurevich, I Yushmanov, E Zabrodin, B Zagreev, A Zalite, C Zampolli, Yu Zanevsky, S Zaporozhets, A Zarochentsev, P Závada, H Zbroszczyk, P Zelnicek, A Zenin, A Zepeda, I Zgura, M Zhalov, X Zhang, D Zhou, S Zhou, J Zhu, A Zichichi, A Zinchenko, G Zinovjev, Y Zoccarato, V Zychácek, M Zynovyev,

Affiliations

  1. Department of Physics, University of Oslo, Oslo, Norway.

PMID: 20868032 DOI: 10.1103/PhysRevLett.105.072002

Abstract

The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at sqrt[s]=0.9 and 7 TeV during the initial running periods of the Large Hadron Collider. The measurement covers the transverse momentum interval 0.45

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