A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider (2021)

Boussarie, R., Mäntysaari, H., Salazar, F., & Schenke, B. (2021). The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider. Journal of High Energy Physics, 2021(9), Article 178. https://doi.org/10.1007/jhep09(2021)178

JYU-tekijät tai -toimittajat

Mäntysaari, Heikki

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Boussarie, Renaud; Mäntysaari, Heikki; Salazar, Farid; Schenke, Björn

Lehti tai sarja: Journal of High Energy Physics

ISSN: 1126-6708

eISSN: 1029-8479

Julkaisuvuosi: 2021

Volyymi: 2021

Lehden numero: 9

Artikkelinumero: 178

Kustantaja: Springer

Julkaisumaa: Saksa

Julkaisun kieli: englanti

DOI: https://doi.org/10.1007/jhep09(2021)178

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/78036

Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/2106.11301

Tiivistelmä

We compute the differential yield for quark anti-quark dijet production in high-energy electron-proton and electron-nucleus collisions at small x as a function of the relative momentum P⊥ and momentum imbalance k⊥ of the dijet system for different photon virtualities Q2, and study the elliptic and quadrangular anisotropies in the relative angle between P⊥ and k⊥. We review and extend the analysis in [1], which compared the results of the Color Glass Condensate (CGC) with those obtained using the transverse momentum dependent (TMD) framework. In particular, we include in our comparison the improved TMD (ITMD) framework, which resums kinematic power corrections of the ratio k⊥ over the hard scale Q⊥. By comparing ITMD and CGC results we are able to isolate genuine higher saturation contributions in the ratio Qs/Q⊥ which are resummed only in the CGC. These saturation contributions are in addition to those in the Weizsäcker-Williams gluon TMD that appear in powers of Qs/k⊥. We provide numerical estimates of these contributions for inclusive dijet production at the future Electron-Ion Collider, and identify kinematic windows where they can become relevant in the measurement of dijet and dihadron azimuthal correlations. We argue that such measurements will allow the detailed experimental study of both kinematic power corrections and genuine gluon saturation effects.

YSO-asiasanat: hiukkasfysiikka; kvanttiväridynamiikka

Vapaat asiasanat: deep inelastic scattering (phenomenology); QCD phenomenology

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

Raportointivuosi: 2021

JUFO-taso: 2