The quark induced Mueller–Tang jet impact factor at next-to-leading order

Hentschinski, Martin; Madrigal, J. D.; Murdaca, B.; Vera, A. Sabio

doi:10.1016/j.nuclphysb.2014.08.010

Cited by 23 publications

(29 citation statements)

References 67 publications

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“…One can see that the structures appearing in (3.33) parallel those obtained for the quark case in [1]. For the qqg final state, we get a similar result…”

Section: Computation Of the Quasielastic Correctionssupporting

confidence: 80%

“…5(b)), appearing in diagrams (c) and (e) of Fig. 4, provides a useful check of our computation, already exploited in [1], since the limit of the quasielastic amplitude ( Fig. 5(a)), Fig.…”

Section: The Real Nlo Corrections To the Impact Factormentioning

confidence: 64%

“…for bare reggeon exchange, while after the resummation of y gap ∼ ln(ŝ/s 0 ) enhanced terms to all orders in α s , we get 1 dσ res ab = 1 Notice that the Green's function is related to the imaginary part of the amplitude rather than the amplitude itself, which is the object needed to compute the exclusive cross-section with finite momentum transfer. At leading order, the amplitude for singlet exchange is purely imaginary, while this is no longer true at next-to-leading order, since one has a signature factor…”

Section: Mueller-tang Jets At Parton Level and The High-energy Effectmentioning

confidence: 97%

“…4(b), (d)). As discussed at length in [1], only quasielastic contributions will be relevant for the impact factor for jet production with a rapidity gap. In any case, the central production amplitude (Fig.…”

Section: The Real Nlo Corrections To the Impact Factormentioning

confidence: 99%

“…In a companion article [1], we have computed the missing real emission contribution to the NLO impact factors for quark-initiated jets with color singlet exchange. Here we offer the details of the calculation of the gluon-induced counterpart, thus obtaining the missing ingredient for the full NLO Mueller-Tang impact factor, and hence opening the door to a fully next-to-leading description of events with large rapidity gaps at high momentum transfer.…”

Section: Introductionmentioning

confidence: 99%

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The gluon-induced Mueller–Tang jet impact factor at next-to-leading order

et al. 2014

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We complete the computation of the Mueller-Tang jet impact factor at next-to-leading order (NLO) initiated in [1] and presented in [2] by computing the real corrections associated with gluons in the initial state making use of Lipatov's effective action. NLO corrections for this effective vertex are an important ingredient for a reliable description of large rapidity gap phenomenology within the BFKL approach.

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“…One can see that the structures appearing in (3.33) parallel those obtained for the quark case in [1]. For the qqg final state, we get a similar result…”

Section: Computation Of the Quasielastic Correctionssupporting

confidence: 80%

“…5(b)), appearing in diagrams (c) and (e) of Fig. 4, provides a useful check of our computation, already exploited in [1], since the limit of the quasielastic amplitude ( Fig. 5(a)), Fig.…”

Section: The Real Nlo Corrections To the Impact Factormentioning

confidence: 64%

Section: Mueller-tang Jets At Parton Level and The High-energy Effectmentioning

confidence: 97%

Section: The Real Nlo Corrections To the Impact Factormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The gluon-induced Mueller–Tang jet impact factor at next-to-leading order

et al. 2014

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Transverse-momentum-dependent quark splitting functions in k T -factorization: real contributions

Gituliar¹,

Hentschinski

Kutak³

2016

J. High Energ. Phys.

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We calculate transverse momentum dependent quark splitting kernels P gq and P qq within k T -factorization, completing earlier results which concentrated on gluon splitting functions P gg and P qg . The complete set of splitting kernels is an essential requirement for the formulation of a complete set of evolution equations for transverse momentum dependent parton distribution functions and the development of corresponding parton shower algorithms.

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Renormalization group improved photon impact factors and the high energy virtual photon scattering

Colferai,

Li,

Staśto

2024

J. High Energ. Phys.

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We perform the renormalization group improved collinear resummation of the photon-gluon impact factors. We construct the resummed cross section for virtual photon-photon (γ∗γ∗) scattering which incorporates the impact factors and BFKL gluon Green’s function up to the next-to-leading logarithmic accuracy in energy. The impact factors include important kinematical effects which are responsible for the most singular poles in Mellin space at next-to-leading order. Further conditions on the resummed cross section are obtained by requiring the consistency with the collinear limits. Our analysis is consistent with previous impact factor calculations at NLO, apart from a new term proportional to CF that we find for the longitudinal polarization. Finally, we use the resummed cross section to compare with the LEP data on the γ∗γ∗ cross section and with previous calculations. The resummed result is lower than the leading logarithmic approximation but higher than the pure next-to-leading one, and is consistent with the experimental data.

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The quark induced Mueller–Tang jet impact factor at next-to-leading order

Cited by 23 publications

References 67 publications

The gluon-induced Mueller–Tang jet impact factor at next-to-leading order

The gluon-induced Mueller–Tang jet impact factor at next-to-leading order

Transverse-momentum-dependent quark splitting functions in k T -factorization: real contributions

Renormalization group improved photon impact factors and the high energy virtual photon scattering

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