Large angle hadron correlations from medium-induced gluon radiation - INSPIRE

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Large angle hadron correlations from medium-induced gluon radiation

Ivan Vitev
(
- Los Alamos
)

Jan, 2005

4 pages

Published in:

Phys.Lett.B 630 (2005) 78-84

e-Print:

hep-ph/0501255 [hep-ph]

DOI:

10.1016/j.physletb.2005.09.082

View in:

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Abstract: (Elsevier)

Final state medium-induced gluon radiation in ultradense nuclear matter is examined and shown to favor large angle emission when compared to vacuum bremsstrahlung due to the suppression of collinear gluons. Perturbative expression for the contribution of its hadronic fragments to the back-to-back particle correlations is derived. It is found that in the limit of large jet energy loss gluon radiation determines the yield and angular distribution of | Δ φ | ⩾ π 2 dihadrons to high transverse momenta p T 2 of the associated particles. Clear transition from enhancement to suppression of the away-side hadron correlations is established at moderate p T 2 and its experimentally accessible features are predicted versus the trigger particle momentum p T 1 .

25.75.Gz
25.75.-q
12.38.Bx
12.38.Mh
scattering: heavy ion
quark gluon: plasma
hadron: pair production
hadron: hadroproduction
correlation: wide-angle
angular distribution

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