One-loop corrections to dihadron production in DIS at small 
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Bergabo, Filip; Jalilian‐Marian, Jamal

doi:10.1103/physrevd.106.054035

Cited by 27 publications

(7 citation statements)

References 73 publications

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“…In [47,48,51,52,55] spinor helicity formalism was used to calculate the contribution of real diagrams to next to leading order corrections to the leading order results. The real corrections are shown in Fig.…”

Section: One-loop Correctionsmentioning

confidence: 99%

“…The real corrections are shown in Fig. (1) and involve radiation of a gluon either by the quark or antiquark before they scatter from the target in which case the gluon also scatters from the target [57][58][59], or after they scatter from the target in which case the radiated gluon does not scatter from the target, The virtual corrections are shown in figure 2 and involve radiation of a gluon by either quark or antiquark which is then absorbed by the quark or antiquark line still in the amplitude [52,55], We refer the reader to [52] for the explicit expressions for the amplitudes for real and virtual corrections given by eqs. ( 5) and (8 − 14) respectively, and eqs.…”

Section: One-loop Correctionsmentioning

confidence: 99%

“…In all these expressions, the momentum fractions z and z 3 are all defined in the same was as in [52].…”

Section: A Dirac Numerators For Real Diagramsmentioning

confidence: 99%

“…In this work we extend our studies of this process and calculate dihadron production in DIS with transverse photon echange. As the calculational methods are identical to our earlier work we will skip a lot of the details of the calculation and refer the reader to [52]. As before there are several divergences that appear at the next to leading order.…”

Section: Introductionmentioning

confidence: 99%

“…Next to leading order calculations for many processes using the Color Glass Condensate effective theory of QCD at small x have recently become available [45][46][47][48][49][50][51][52][53][54][55][56]. In a recent paper [52] we calculated the one-loop corrections to inclusive dihadron production in DIS at small x for the case when the exchanged virtual photon is longitudinal. In this work we extend our studies of this process and calculate dihadron production in DIS with transverse photon echange.…”

Section: Introductionmentioning

confidence: 99%

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Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons

Bergabo¹,

Jalilian-Marian²

2023

Preprint

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We calculate the next to leading order corrections to dihadron production in Deep Inelastic Scattering (DIS) at small x using the Color Glass Condensate formalism for the case when the virtual photon is transverse polarized. Similar to the case of longitudinal photon exchange all UV and soft singularities cancel while the collinear divergences are absorbed into quark and antiquarkhadron fragmentation functions. Rapidity divergences lead to JIMWLK evolution of dipoles and quadrupoles which describe multiple-scatterings of the quark antiquark dipole on the target proton/nucleus and contain all the QCD dynamics of the target leading to a finite final result for the dihadron production cross section.

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Section: One-loop Correctionsmentioning

confidence: 99%

Section: One-loop Correctionsmentioning

confidence: 99%

“…In all these expressions, the momentum fractions z and z 3 are all defined in the same was as in [52].…”

Section: A Dirac Numerators For Real Diagramsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons

Bergabo¹,

Jalilian-Marian²

2023

Preprint

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Single inclusive hadron production in DIS at small x: next to leading order corrections

Bergabo

Jalilian‐Marian

2023

J. High Energ. Phys.

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We calculate the one-loop corrections to single inclusive hadron production in Deep Inelastic Scattering (DIS) at small x in the forward rapidity region using the Color Glass Condensate formalism. We show that the divergent parts of the next to leading order (NLO) corrections either cancel among each other or lead to x (rapidity) evolution of the leading order (LO) dipole cross section according to the JIMWLK evolution equation and DGLAP evolution of the parton-hadron fragmentation function. The remaining finite parts constitute the NLO (αs) corrections to the LO single inclusive hadron production cross section in DIS at small x.

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Forward production of a Drell-Yan pair and a jet at small x at next-to-leading order

Taels

2024

J. High Energ. Phys.

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We perform the analytical next-to-leading order calculation of the process p + A γ∗ + jet + X, at forward rapidities and low x. These kinematics justify a hybrid approach, where a quark from the ‘projectile’ proton scatters off the gluon distribution of the ‘target’, which can be a nucleus or a highly boosted proton. By using the Color Glass Condensate effective theory approach, this gluon distribution is allowed to be so dense that the quark undergoes multiple scattering. Moreover, large high-energy logarithms in the ratio of the hard scale and the center-of-mass energy are resummed by the Balitsky, Kovchegov, Jalilian-Marian, Iancu, McLerran, Weigert, Leonidov, Kovner or BK-JIMWLK evolution equations. We demonstrate that all ultraviolet divergences encountered in the calculation cancel, while the high-energy divergences are absorbed into BK-JIMWLK. The remaining singularities are collinear in nature and can be either absorbed into the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution of the incoming quark, when they stem from initial-state radiation, or else can be treated by a jet function in case they are caused by final-state emissions. The resulting cross section is completely finite and expressed in function of only a small set of color operators.

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One-loop corrections to dihadron production in DIS at small x

Cited by 27 publications

References 73 publications

Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons

Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons

Single inclusive hadron production in DIS at small x: next to leading order corrections

Forward production of a Drell-Yan pair and a jet at small x at next-to-leading order

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