Inclusive dijet hadroproduction with a rapidity veto constraint

Abstract

We study ratios of azimuthal-angle distributions in Mueller-Navelet jets after imposing a rapidity veto constraint: the minijet radiation activity is restricted to only allow final-state partons separated at least a distance in rapidity b. It is well-known that the asymptotic growth with the rapidity separation of the two tagged jets of the NLLA BFKL Green's function requires a value of b O(2) in order to avoid unphysical cross sections. We further investigate this point from a phenomenological point of view and work out those values of b which best fit angular distributions measured at the LHC in a realistic set-up where impact factors and parton distribution effects are also taken into account.

High-energy resummation in heavy-quark pair hadroproduction

“…Pursuing the goal to get a more exhaustive comprehension of this high-energy regime, a significant range of semi-hard reactions (see Ref. [21] for applications) has been proposed so far: the diffractive leptoproduction of one [22][23][24] or two light vector mesons [25][26][27][28], the inclusive hadroproduction of two jets featuring large transverse momenta and well separated in rapidity (Mueller-Navelet channel [29]), for which several phenomenological studies have appeared so far [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], the inclusive detection of two light-charged rapidity-separated hadrons [45][46][47], three-and four-jet hadroproduction [48][49][50][51][52][53][54][55][56], J/Ψjet [57], hadron-jet [58-60] and forward Drell-Yan dilepton production [61][62][63] with a possible backward-jet tag [64,65].…”

Inclusive Hadron-jet Production at the LHC

“…The Balitsky-Fadin-Kuraev-Lipatov (BFKL) [1] approach is the most powerful tool to resum to all orders these large logarithms both in the leading (LLA) and the next-to-leading (NLA) approximation. In the last years, a good number of processes have been proposed as candidate probes of the high-energy regime, namely: the inclusive hadroproduction of two jets with high p T and well separated in rapidity (better known as Mueller-Navelet process [2]), for which a richness of theoretical predictions have appeared so far [3][4][5][6][7][8][9][10][11][12][13][14][15][16], the inclusive detection of two identified, light charged hadrons [17][18][19], and more recently, multi-jet hadroproduction [20][21][22][23][24][25][26] and heavy-quark pair photoproduction [27]. In this work a novel semi-hard reaction, i.e.…”

Hadron-jet correlations in high-energy hadronic collisions at the LHC

“…These include the so called Mueller-Navelet jet production [1], i.e. the inclusive production of two jets featuring a large rapidity separation between them, for which a wealth of theoretical analyses were produced in the last years [2][3][4][5][6][7][8][9][10][11][12][13][14][15], and the somewhat related process where two identified, charged light hadrons well separated in rapidity are inclusively produced [16,17], instead of jets.…”