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相关论文: Resummed event-shape variables in DIS

200 篇论文

The heavy jet mass event shape has large perturbative logarithms near the leading order kinematic threshold at $\rho = \frac{1}{3}$. Catani and Webber named these logarithms Sudakov shoulders and resummed them at double-logarithmic level. A…

高能物理 - 唯象学 · 物理学 2023-06-16 Arindam Bhattacharya , Johannes K. L. Michel , Matthew D. Schwartz , Iain W. Stewart , Xiaoyuan Zhang

Given a random process $x(\tau)$ which undergoes stochastic resetting at a constant rate $r$ to a position drawn from a distribution ${\cal P}(x)$, we consider a sequence of dynamical observables $A_1, \dots, A_n$ associated to the…

统计力学 · 物理学 2023-06-08 Naftali R. Smith , Satya N. Majumdar , Gregory Schehr

Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter, and two kinds of differential two-jet rates over a large range of ``relevant…

高能物理 - 实验 · 物理学 2009-10-31 K. Rabbertz

We present results for the $\tau_1$ and $\tau_{1a}$ 1-Jettiness global event shape distributions, for Deep Inelastic Scattering (DIS), at the N$^3$LL + ${\cal O}(\alpha_s^2)$ level of accuracy. These event-shape distributions quantify and…

高能物理 - 唯象学 · 物理学 2024-08-01 Haotian Cao , Zhong-Bo Kang , Xiaohui Liu , Sonny Mantry

We investigate the effects of non-commutative geometry on the topological aspects of gauge theory using a non-perturbative formulation based on the twisted reduced model. The configuration space is decomposed into topological sectors…

高能物理 - 理论 · 物理学 2011-07-19 Hajime Aoki , Jun Nishimura , Yoshiaki Susaki

Jet substructure has emerged as a critical tool for LHC searches, but studies so far have relied heavily on shower Monte Carlo simulations, which formally approximate QCD at leading-log level. We demonstrate that systematic higher-order QCD…

高能物理 - 唯象学 · 物理学 2012-09-18 Ilya Feige , Matthew D. Schwartz , Iain W. Stewart , Jesse Thaler

We consider jet-shape observables of the type proposed recently, where the shapes of one or more high-pT jets, produced in a multi-jet event with definite jet multiplicity, may be measured leaving other jets in the event unmeasured. We…

高能物理 - 唯象学 · 物理学 2015-03-14 Andrea Banfi , Mrinal Dasgupta , Kamel Khelifa-Kerfa , Simone Marzani

We review the work discussed and developed under the topic ``Resummation'' at Working Group 2 ``Multijet final states and energy flow'', of the HERA-LHC Workshop. We emphasise the role played by HERA observables in the development of…

高能物理 - 唯象学 · 物理学 2016-09-06 A. Banfi , G. Corcella , M. Dasgupta , Y. Delenda , G. P. Salam , G. Zanderighi

A continuous approximation for the results of [1] is obtained. In this approximation the energy distribution is represented in the form of the product of the Gibbs factor and superstatistics factor. The mutual weights of the factors are…

化学物理 · 物理学 2007-05-23 V. V. Ryazanov

We perform direct numerical simulations of a bi-disperse suspension of heavy spherical particles in forced, homogeneous, and isotropic three-dimensional turbulence. We compute the joint distribution of relative particle distances and…

流体动力学 · 物理学 2018-12-21 Akshay Bhatnagar , K. Gustavsson , B. Mehlig , Dhrubaditya Mitra

Inspired by the success of analytical models for non-perturbative effects, used to investigate event shape variables at LEP and HERA, we apply them to a study of jets at hadron colliders such as the Tevatron and the LHC. We find that simple…

高能物理 - 唯象学 · 物理学 2008-05-16 Mrinal Dasgupta , Lorenzo Magnea , Gavin Salam

A global fit for $\alpha_s(m_Z)$ is performed on available $e^+e^-$ data for the heavy jet mass distribution. The state-of-the-art theory prediction includes $\mathcal{O}(\alpha_s^3)$ fixed-order results, N$^3$LL$^\prime$ dijet resummation,…

In the present paper new insights into the study of the Non-central Dirichlet distribution are provided. This latter is the analogue of the Dirichlet distribution obtained by replacing the Chi-Squared random variables involved in its…

统计理论 · 数学 2021-08-23 Carlo Orsi

We study the dynamics of pairs of connected masses in the plane, when nonholonomic (knife-edge) constraints are realized by forces of viscous friction, in particular its relation to constrained dynamics, and its approximation by the method…

经典物理 · 物理学 2017-05-19 Sergiy Koshkin , Vojin Jovanovic

In this review, intended for non-specialists and beginners, we recount the current status of the theory of jet modification in dense matter. We commence with an outline of the "traditional" observables which may be calculated without…

核理论 · 物理学 2023-07-19 Abhijit Majumder

We study the probability distribution function of the long-time values of observables being time-evolved by Hamiltonians modeling clean and disordered one-dimensional chains of many spin-1/2 particles. In particular, we analyze the return…

无序系统与神经网络 · 物理学 2023-10-10 I. Vallejo-Fabila , E. Jonathan Torres-Herrera

A general inversion technique for the recovery of the underlying distribution function for observed galactic disks is presented and illustrated. Under the assumption that these disks are axi-symmetric and thin, the proposed method yields…

天体物理学 · 物理学 2009-09-25 C. Pichon , E. Thiebaut

We consider the extension of the statistical parton distributions to include their transverse momentum dependence, by using two different methods, one is based on our quantum statistical approach, the other on a relativistic covariant…

高能物理 - 唯象学 · 物理学 2011-04-28 Claude Bourrely , Franco Buccella , Jacques Soffer

We investigate the use of jets to measure transverse momentum dependent distributions (TMDs). The example we use to present our framework is the dijet momentum decorrelation at lepton colliders. Translating this momentum decorrelation into…

高能物理 - 唯象学 · 物理学 2018-10-24 Daniel Gutierrez-Reyes , Ignazio Scimemi , Wouter J. Waalewijn , Lorenzo Zoppi

We compute cross sections for two-jet production in deep inelastic scattering (DIS), with one jet from initial state radiation (ISR) and the other from final state radiation, with a summation of large logarithms up to…

高能物理 - 唯象学 · 物理学 2013-08-22 Daekyoung Kang , Christopher Lee , Iain W. Stewart