Title: High energy resummed predictions for the production of a Higgs boson with at least one jet
A bstract We present all-order predictions for Higgs boson production plus at least one jet which are accurate to leading logarithm in $$ \hat{s}/{\left|{p}_{\perp}\right|}^2 $$ s ̂ / p ⊥ 2 . Our calculation includes full top and bottom quark mass dependence at all orders in the logarithmic part, and to highest available order in the tree-level matching. The calculation is implemented in the framework of High Energy Jets (HEJ). This is the first cross section calculated with log( $$ \hat{s} $$ s ̂ ) resummation and matched to fixed order for a process requiring just one jet, and our results also extend the region of resummation for processes with two jets or more. This is possible because the resummation is performed explicitly in phase space. We compare the results of our new calculation to LHC data and to next-to-leading order predictions and find a numerically significant impact of the logarithmic corrections in the shape of key distributions, which remains after normalisation of the cross section. more »« less
Anderle, Daniele; Dasgupta, Mrinal; El-Menoufi, Basem Kamal; Guzzi, Marco; Helliwell, Jack
(, The European Physical Journal C)
null
(Ed.)
Abstract We study the link between parton dynamics in the collinear limit and the logarithmically enhanced terms of the groomed jet mass distribution, for jets groomed with the modified mass-drop tagger (mMDT). While the leading-logarithmic (LL) result is linked to collinear evolution with leading-order splitting kernels, here we derive the NLL structure directly from triple-collinear splitting kernels. The calculation we present is a fixed-order calculation in the triple-collinear limit, independent of resummation ingredients and methods. It therefore constitutes a powerful cross-check of the NLL results previously derived using the SCET formalism and provides much of the insight needed for resummation within the traditional QCD approach.
Liu, Hao-yu; Xie, Kexin; Kang, Zhong-Bo; Liu, Xiaohui
(, Journal of High Energy Physics)
A bstract We present the first complete next-to-leading-order (NLO) prediction with full jet algorithm implementation for the single inclusive jet production in pA collisions at forward rapidities within the color glass condensate (CGC) effective theory. Our prediction is fully differential over the final state physical kinematics, which allows the implementation of any infra-red safe observable including the jet clustering procedure. The NLO calculation is organized with the aid of the observable originated power counting proposed in [1] which gives rise to the novel soft contributions in the CGC factorization. We achieve the fully-differential calculation by constructing suitable subtraction terms to handle the singularities in the real corrections. The subtraction contributions can be exactly integrated analytically. We present the NLO cross section with the jets constructed using the anti- k T algorithm. The NLO calculation demonstrates explicitly the validity of the CGC factorization in jet production. Furthermore, as a byproduct of the subtraction method, we also derive the fully analytic cross section for the forward jet production in the small- R limit. We show that in the small- R approximation, the forward jet cross section can be factorized into a semi-hard cross section that produces a parton and the semi-inclusive jet functions (siJFs). We argue that this feature holds for generic jet production and jet substructure observables in the CGC framework. Last, we show numerical analyses of the derived formula to validate our calculations. We justify when the small- R approximation is appropriate. Like forward hadron production, the obtained NLO result also exhibits the negativity of the cross section in the large jet transverse regime, which signals the need for the threshold resummation. A sketch of the threshold resummation in the CGC framework is presented based on the multiple emission picture and it is found to agree with the approach using the rapidity renormalization group equation developed in [2].
Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Dragicevic, M.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.; Krammer, N.; et al
(, Journal of High Energy Physics)
A bstract The cross sections for inclusive and Mueller-Navelet dijet production are measured as a function of the rapidity separation between the jets in proton-proton collisions at $$ \sqrt{s} $$ s = 2 . 76 TeV for jets with transverse momentum p T > 35 GeV and rapidity | y | < 4 . 7. Various dijet production cross section ratios are also measured. A veto on additional jets with p T > 20 GeV is introduced to improve the sensitivity to the effects of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution. The measurement is compared with the predictions of various Monte Carlo models based on leading-order and next-to-leading-order calculations including the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi leading-logarithm (LL) parton shower as well as the LL BFKL resummation.
Acharya, S.; Adamová, D.; Adler, A.; Adolfsson, J.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; et al
(, The European Physical Journal C)
Abstract The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of $$\sqrt{s} = 13\ {\mathrm {TeV}}$$ s = 13 TeV is studied for the first time. Jets are reconstructed from charged particles using the anti- $$k_\mathrm {T}$$ k T algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range $$|\eta _{\mathrm{jet}}|< 0.9-R$$ | η jet | < 0.9 - R and in the transverse momentum range $$5
Kang, Zhong-Bo; Lee, Kyle; Liu, Xiaohui; Neill, Duff; Ringer, Felix
(, Journal of High Energy Physics)
null
(Ed.)
A bstract We present results for the soft drop groomed jet radius R g at next-to-leading logarithmic accuracy. The radius of a groomed jet which corresponds to the angle between the two branches passing the soft drop criterion is one of the characteristic observables relevant for the precise understanding of groomed jet substructure. We establish a factorization formalism that allows for the resummation of all relevant large logarithms, which is based on demonstrating the all order equivalence to a jet veto in the region between the boundaries of the groomed and ungroomed jet. Non-global logarithms including clustering effects due to the Cambridge/Aachen algorithm are resummed to all orders using a suitable Monte Carlo algorithm. We perform numerical calculations and find a very good agreement with Pythia 8 simulations. We provide theoretical predictions for the LHC and RHIC.
Andersen, Jeppe R., Hassan, Hitham, Maier, Andreas, Paltrinieri, Jérémy, Papaefstathiou, Andreas, and Smillie, Jennifer M. High energy resummed predictions for the production of a Higgs boson with at least one jet. Retrieved from https://par.nsf.gov/biblio/10434354. Journal of High Energy Physics 2023.3 Web. doi:10.1007/JHEP03(2023)001.
Andersen, Jeppe R., Hassan, Hitham, Maier, Andreas, Paltrinieri, Jérémy, Papaefstathiou, Andreas, & Smillie, Jennifer M. High energy resummed predictions for the production of a Higgs boson with at least one jet. Journal of High Energy Physics, 2023 (3). Retrieved from https://par.nsf.gov/biblio/10434354. https://doi.org/10.1007/JHEP03(2023)001
Andersen, Jeppe R., Hassan, Hitham, Maier, Andreas, Paltrinieri, Jérémy, Papaefstathiou, Andreas, and Smillie, Jennifer M.
"High energy resummed predictions for the production of a Higgs boson with at least one jet". Journal of High Energy Physics 2023 (3). Country unknown/Code not available. https://doi.org/10.1007/JHEP03(2023)001.https://par.nsf.gov/biblio/10434354.
@article{osti_10434354,
place = {Country unknown/Code not available},
title = {High energy resummed predictions for the production of a Higgs boson with at least one jet},
url = {https://par.nsf.gov/biblio/10434354},
DOI = {10.1007/JHEP03(2023)001},
abstractNote = {A bstract We present all-order predictions for Higgs boson production plus at least one jet which are accurate to leading logarithm in $$ \hat{s}/{\left|{p}_{\perp}\right|}^2 $$ s ̂ / p ⊥ 2 . Our calculation includes full top and bottom quark mass dependence at all orders in the logarithmic part, and to highest available order in the tree-level matching. The calculation is implemented in the framework of High Energy Jets (HEJ). This is the first cross section calculated with log( $$ \hat{s} $$ s ̂ ) resummation and matched to fixed order for a process requiring just one jet, and our results also extend the region of resummation for processes with two jets or more. This is possible because the resummation is performed explicitly in phase space. We compare the results of our new calculation to LHC data and to next-to-leading order predictions and find a numerically significant impact of the logarithmic corrections in the shape of key distributions, which remains after normalisation of the cross section.},
journal = {Journal of High Energy Physics},
volume = {2023},
number = {3},
author = {Andersen, Jeppe R. and Hassan, Hitham and Maier, Andreas and Paltrinieri, Jérémy and Papaefstathiou, Andreas and Smillie, Jennifer M.},
}
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