TY - JOUR
T1 - CGC/saturation approach
T2 - re-visiting the problem of odd harmonics in angular correlations
AU - Gotsman, E.
AU - Levin, E.
N1 - Publisher Copyright:
© 2018, The Author(s).
PY - 2018/9/1
Y1 - 2018/9/1
N2 - In this paper we demonstrate that the selection of events with different multiplicities of produced particles, leads to the violation of the azimuthal angular symmetry, ϕ→ π- ϕ. We find for LHC and lower energies, that this violation can be so large for the events with multiplicities n≥ 2 n¯ , where n¯ is the mean multiplicity, that it leads to almost no suppression of vn, with odd n. However, this can only occur if the typical size of the dipole in DIS with a nuclear target is small, or Q2>Qs2(A;Ymin,b), where Qs is the saturation momentum of the nucleus at Y= Ymin. In the case of large sizes of dipoles, when Q2n= 0 for odd n. Hadron-nucleus scattering is discussed.
AB - In this paper we demonstrate that the selection of events with different multiplicities of produced particles, leads to the violation of the azimuthal angular symmetry, ϕ→ π- ϕ. We find for LHC and lower energies, that this violation can be so large for the events with multiplicities n≥ 2 n¯ , where n¯ is the mean multiplicity, that it leads to almost no suppression of vn, with odd n. However, this can only occur if the typical size of the dipole in DIS with a nuclear target is small, or Q2>Qs2(A;Ymin,b), where Qs is the saturation momentum of the nucleus at Y= Ymin. In the case of large sizes of dipoles, when Q2n= 0 for odd n. Hadron-nucleus scattering is discussed.
UR - http://www.scopus.com/inward/record.url?scp=85054330015&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-018-6257-3
DO - 10.1140/epjc/s10052-018-6257-3
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AN - SCOPUS:85054330015
SN - 1434-6044
VL - 78
JO - European Physical Journal C
JF - European Physical Journal C
IS - 9
M1 - 792
ER -