Measurement of the energy density as a function of pseudorapidity in proton–proton collisions at $$\sqrt{s} =13\,\text {TeV} $$ s = 13 TeV
Name
10052_2019_Article_6861.pdf
Size
915.71 KB
Format
Adobe PDF
Checksum (MD5)
5f59b5e8e0750feab0c61ec76aa914b7
Author(s)
Sirunyan, A. M
Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Dragicevic, M.
Erö, J.
Del Valle, A. E
Date Issued
May 7, 2019
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2019 May 07;79(5):391
Version
Final published version
Abstract
Abstract
A measurement of the energy density in proton–proton collisions at a centre-of-mass energy of
$$\sqrt{s} =13$$
s
=
13
$$\,\text {TeV}$$
TeV
is presented. The data have been recorded with the CMS experiment at the LHC during low luminosity operations in 2015. The energy density is studied as a function of pseudorapidity in the ranges
$$-\,6.6<\eta <-\,5.2$$
-
6.6
<
η
<
-
5.2
and
$$3.15<|\eta |<5.20$$
3.15
<
|
η
|
<
5.20
. The results are compared with the predictions of several models. All the models considered suggest a different shape of the pseudorapidity dependence compared to that observed in the data. A comparison with LHC proton–proton collision data at
$$\sqrt{s} =0.9$$
s
=
0.9
and
$$7\,\text {TeV} $$
7
TeV
confirms the compatibility of the data with the hypothesis of limiting fragmentation.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-019-6861-x
