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The inclusive hadroproduction of two heavy quarks, featuring a large separation in rapidity, is proposed as a novel probe channel of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach. In a theoretical setup which includes full resummation…

High Energy Physics - Phenomenology · Physics 2020-12-02 Andrèe Dafne Bolognino , Francesco Giovanni Celiberto , Michael Fucilla , Dmitry Yu. Ivanov , Alessandro Papa

We initiate the study of transverse momentum-dependent (TMD) fragmentation functions for heavy quarks, demonstrate their factorization in terms of novel nonperturbative matrix elements in heavy-quark effective theory (HQET), and prove new…

High Energy Physics - Phenomenology · Physics 2023-10-06 Rebecca von Kuk , Johannes K. L. Michel , Zhiquan Sun

Recently, a new perturbative QCD factorization formalism for heavy quarkonium production at a large transverse momentum was proposed. Phenomenological application of this new approach relies on our knowledge of a large number of universal…

High Energy Physics - Phenomenology · Physics 2014-06-11 Yan-Qing Ma , Jian-Wei Qiu , Hong Zhang

These lectures describe some of the latest data on particle production in high-energy collisions and compare them with theoretical calculations and models based on QCD. The main topics covered are: fragmentation functions and factorization,…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. R. Webber

We present a perturbative QCD factorization formalism for the production of heavy quarkonia of large transverse momentum $p_T$ at collider energies, which includes both the leading power (LP) and next-to-leading power (NLP) contributions to…

High Energy Physics - Phenomenology · Physics 2012-03-12 Zhong-Bo Kang , Jian-Wei Qiu , George Sterman

We present predictions for heavy-quark production at the Large Hadron Collider making use of the ${\overline{\rm MS}}$ and MSR renormalization schemes for the heavy-quark mass as alternatives to the widely used on-shell renormalization…

High Energy Physics - Phenomenology · Physics 2021-04-14 M. V. Garzelli , L. Kemmler , S. Moch , O. Zenaiev

We compute the fragmentation functions for the production of a Higgs boson at $\mathcal{O}(y_t^2\alpha_s)$. As part of this calculation, the relevant splitting functions are also derived at the same perturbative order. Our results can be…

High Energy Physics - Phenomenology · Physics 2021-09-15 Colomba Brancaccio , Michał Czakon , Terry Generet , Michael Krämer

With the increasing experimental precision available at colliders, higher-order perturbative calculations are required to reduce the theory uncertainty in order to extract crucial QCD parameters, such as the strong coupling constant, to the…

High Energy Physics - Phenomenology · Physics 2022-08-15 Marco Saragnese

In this paper, the soft gluon resummation effect in double heavy quarkonium production at the LHC is studied. By applying the transverse momentum dependent factorization formalism, the large logarithms introduced by the small total…

High Energy Physics - Phenomenology · Physics 2021-04-21 Chong-Yang Lu , Dan-Dan Shen , Peng Sun , Ruilin Zhu

Heavy colored scalar particles appear in a variety of new physics (NP) models and could be produced at the Large Hadron Collider (LHC). Knowing the total production cross section is important for searching for these states and establishing…

High Energy Physics - Phenomenology · Physics 2009-07-24 Ahmad Idilbi , Chul Kim , Thomas Mehen

We present the threshold resummation for the cross section for electroproduction of heavy quarks. We work to next-to-leading logarithmic accuracy, and in single-particle inclusive kinematics. We provide next-to-leading and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Eric Laenen , Sven-Olaf Moch

There are presently two approaches to calculating heavy quark production for the deeply inelastic scattering process in current literature. The conventional fixed-flavor scheme focuses on the flavor creation mechanism and includes the heavy…

High Energy Physics - Phenomenology · Physics 2007-05-23 Pankaj Agrawal , Fredrick I. Olness , Stephan T. Riemersma , Wu-Ki Tung

In the framework of the kt-factorization approach, we study the production of Higgs bosons associated with a heavy (beauty or top) quark pair at the CERN LHC collider conditions. Our consideration is based mainly on the off-shell…

High Energy Physics - Phenomenology · Physics 2009-08-11 A. V. Lipatov , N. P. Zotov

It has been known for many years that jet cross sections at hadron colliders exhibit double-logarithmic corrections starting at four-loop order, arising from two soft Glauber-gluon interactions between the two colliding partons. The…

High Energy Physics - Phenomenology · Physics 2023-10-17 Philipp Böer , Matthias Neubert , Michel Stillger

We thoroughly investigate both transverse momentum and threshold resummation effects on scalar-pseudoscalar pair production via quark-antiquark annihilation at the $13~ \text{TeV}$ Large Hadron Collider at QCD NLO+NLL accuracy. A…

High Energy Physics - Phenomenology · Physics 2021-12-28 He-Yi Li , Ren-You Zhang , Yu Zhang , Wen-Gan Ma , Ming-Ming Long , Shu-Xiang Li

The present status of the heavy-quark production theory is critically reviewed in the first contribution. The second contribution summarises the present heavy flavour data from HERA and gives an outlook of what can be expected from HERA-II.…

The leading and next-to-leading order QCD predictions for Higgs boson pair production at hadron colliders suffer from a significant mass renormalisation scheme uncertainty related to the choice of the top-quark mass. The functional…

High Energy Physics - Phenomenology · Physics 2025-01-03 Sebastian Jaskiewicz , Stephen Jones , Robert Szafron , Yannick Ulrich

The $X(6900)$ resonance, very recently discovered in the double-$J/\psi$ channel at LHCb experiment, has spurred intensive interest in unravelling the nature of the fully charmed tetraquark state. The aim of this paper is to present a…

High Energy Physics - Phenomenology · Physics 2020-09-18 Feng Feng , Yingsheng Huang , Yu Jia , Wen-Long Sang , Xiaonu Xiong , Jia-Yue Zhang

It is well-known that the dominant mechanism to produce hadronic bound states with large transverse momentum is fragmentation. This mechanism is described by the fragmentation functions (FFs) which are the universal and process-independent…

High Energy Physics - Phenomenology · Physics 2016-10-19 S. M. Moosavi Nejad , P. Sartipi Yarahmadi

We present state of the art resummation predictions for differential cross sections in top-quark pair production at the LHC. They are derived from a formalism which allows the simultaneous resummation of both soft and small-mass logarithms,…

High Energy Physics - Phenomenology · Physics 2016-05-25 Benjamin D. Pecjak , Darren J. Scott , Xing Wang , Li Lin Yang
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