@article{3171325,
    title = "Measurement of transverse energy at midrapidity in Pb-Pb collisions at
root s(NN)=2.76 TeV",
    author = "Adam, J. and Adamova, D. and Aggarwal, M. M. and Rinella, G. Aglieri and and Agnello, M. and Agrawal, N. and Ahammed, Z. and Ahmad, S. and Ahn, S. U. and and Aiola, S. and Akindinov, A. and Alam, S. N. and Albuquerque, D. S. and D. and Aleksandrov, D. and Alessandro, B. and Alexandre, D. and Molina, and R. Alfaro and Alici, A. and Alkin, A. and Almaraz, J. R. M. and Alme, J. and and Alt, T. and Altinpinar, S. and Altsybeev, I. and Alves Garcia Prado, and C. and Andrei, C. and Andronic, A. and Anguelov, V. and Anticic, T. and and Antinori, F. and Antonioli, P. and Aphecetche, L. and Appelshaeuser, H. and and Arcelli, S. and Arnaldi, R. and Arnold, O. W. and Arsene, I. C. and and Arslandok, M. and Audurier, B. and Augustinus, A. and Averbeck, R. and and Azmi, M. D. and Badala, A. and Baek, Y. W. and Bagnasco, S. and and Bailhache, R. and Bala, R. and Balasubramanian, S. and Baldisseri, A. and and Baral, R. C. and Barbano, A. 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H. and Yurchenko, V. and and Yushmanov, I. and Zaborowska, A. and Zaccolo, V. and Zaman, A. and and Zampolli, C. and Zanoli, H. J. C. and Zaporozhets, S. and Zardoshti, N. and and Zarochentsev, A. and Zavada, P. and Zaviyalov, N. and Zbroszczyk, H. and and Zgura, I. S. and Zhalov, M. and Zhang, H. and Zhang, X. and Zhang, and Y. and Zhang, C. and Zhang, Z. and Zhao, C. and Zhigareva, N. and Zhou, and D. and Zhou, Y. and Zhou, Z. and Zhu, H. and Zhu, J. and Zichichi, A. and and Zimmermann, A. and Zimmermann, M. B. and Zinovjev, G. and Zyzak, M. and and ALICE Collaboration",
    journal = "Physical Review C",
    year = "2016",
    volume = "94",
    number = "3",
    publisher = "AMER PHYSICAL SOC",
    issn = "2469-9985, 2469-9993",
    doi = "10.1103/PhysRevC.94.034903",
    abstract = "We report the transverse energy (ET) measured with ALICE at midrapidity
in Pb-Pb collisions at root s(NN) = 2.76 TeV as a function of
centrality. The transverse energy was measured using identified
single-particle tracks. The measurement was cross checked using the
electromagnetic calorimeters and the transverse momentum distributions
of identified particles previously reported by ALICE. The results are
compared to theoretical models as well as to results from other
experiments. The mean ET per unit pseudorapidity (eta), < dE(T)/d eta >,
in 0%-5% central collisions is 1737 +/- 6(stat.) +/- 97(sys.) GeV. We
find a similar centrality dependence of the shape of < dE(T)/d eta > as
a function of the number of participating nucleons to that seen at lower
energies. The growth in < dE(T)/d eta > at the LHC energies exceeds
extrapolations of low-energy data. We observe a nearly linear scaling of
< dE(T)/d eta > with the number of quark participants. With the
canonical assumption of a 1 fm/c formation time, we estimate that the
energy density in 0%-5% central Pb-Pb collisions at root s(NN) = 2.76
TeV is 12.3 +/- 1.0 GeV/fm(3) and that the energy density at the most
central 80 fm(2) of the collision is at least 21.5 +/- 1.7 GeV/fm(3).
This is roughly 2.3 times that observed in 0%-5% central Au-Au
collisions at root s(NN) = 200 GeV."
}