HEPData

Abstract (data abstract)

CERN-LHC. Measurement of the angular correlations of identified particles (pions, kaons, protons, lambdas) in pp collisions at a center-of-mass energy of 7 TeV. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This result currently presents a challenge to Monte Carlo models and its origin remains an open question.

Table 1

Data from Figure 3a

10.17182/hepdata.78803.v1/t1

$\Delta\eta$ integrated projections of correlation functions for combined pairs of $\rm pp+\overline{p}\overline{p}$, $\rm p\Lambda+\overline{p}\overline{\Lambda}$, and $\Lambda\Lambda+\overline{\Lambda}\overline{\Lambda}$.
https://www.hepdata.net/record/data/129962yaml https://www.hepdata.net/record/data/129962/csvcsv
Table 2

Data from Figure 3b

10.17182/hepdata.78803.v1/t2

$\Delta\eta$ integrated projections of correlation functions for combined pairs of $\rm p\overline{p}$, $\rm p\overline{\Lambda}+\overline{p}\Lambda$, and $\Lambda\overline{\Lambda}$.
https://www.hepdata.net/record/data/129963yaml https://www.hepdata.net/record/data/129963/csvcsv
Table 3

Data from Figure 4

10.17182/hepdata.78803.v1/t3

$\Delta\eta$ integrated projections of correlation functions for combined pairs of $\rm pp+\overline{p}\overline{p}$ for two transverse momentum intervals (a) $0.5 <...
https://www.hepdata.net/record/data/129964yaml https://www.hepdata.net/record/data/129964/csvcsv
Table 4

Data from Figure 5

10.17182/hepdata.78803.v1/t4

$\Delta\eta$ integrated projections of correlation functions for (a) $\pi^+\pi^-$, (b) $\rm K^+K^-$, (c) $\mathrm{p\overline{p}}$ pairs.
https://www.hepdata.net/record/data/129965yaml https://www.hepdata.net/record/data/129965/csvcsv
Table 5

Data from Figure 6

10.17182/hepdata.78803.v1/t5

$\Delta\eta$ integrated projections of correlation functions for combined pairs of (a) $\pi^+\pi^+ + \pi^-\pi^-$, (b) $\rm K^+K^+ + K^-K^-$, (c)...
https://www.hepdata.net/record/data/129966yaml https://www.hepdata.net/record/data/129966/csvcsv
Table 6

Data from Figure 5, Figure 6

10.17182/hepdata.78803.v1/t6

$\Delta\eta$ integrated projections of correlation functions for (a) $\Lambda\Lambda+\overline{\Lambda}\overline{\Lambda}$, (b)$\Lambda\overline{\Lambda}$ pairs.
https://www.hepdata.net/record/data/129967yaml https://www.hepdata.net/record/data/129967/csvcsv

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