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Gutiérrez Reyes, Daniel and Yiannis, Makris and Vaidya, Varun and Scimemi, Ignazio and Zoppi, Lorenzo (2019) Probing transverse-momentum distributions with groomed jets. Journal of high energy physics (8). ISSN 1029-8479
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Official URL: http://dx.doi.org/10.1007/JHEP08(2019)161
Abstract
We present the transverse momentum spectrum of groomed jets in di-jet events for e(+)e(-) collisions and semi-inclusive deep inelastic scattering (SIDIS). The jets are groomed using a soft-drop grooming algorithm which helps in mitigating effects of non-global logarithms and underlying event. At the same time, by reducing the final state hadronization effects, it provides a clean access to the non-perturbative part of the evolution of transverse momentum dependent (TMD) distributions. In SIDIS experiments we look at the transverse momentum of the groomed jet measured w.r.t. the incoming hadron in the Breit frame. Because the final state hadronization effects are significantly reduced, the SIDIS case allows to probe the TMD parton distribution functions. We discuss the sources of non-perturbative effects in the low transverse momentum region including novel (but small) effects that arise due to grooming. We derive a factorization theorem within SCET and resum any large logarithm in the measured transverse momentum up to NNLL accuracy using the zeta-prescription as implemented in the artemide package and provide a comparison with simulations.
Item Type: | Article |
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Additional Information: | © 2019 Springer. |
Uncontrolled Keywords: | Power corrections. |
Subjects: | Sciences > Physics > Physics-Mathematical models Sciences > Physics > Mathematical physics |
ID Code: | 57459 |
Deposited On: | 29 Oct 2019 12:03 |
Last Modified: | 29 Oct 2019 12:52 |
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