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相关论文: Glauber Gluon Effects in Soft Collinear Factorizat…

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We study jet angularity measurements for single-inclusive jet production at the LHC. Jet angularities depend on a continuous parameter $a$ allowing for a smooth interpolation between different traditional jet shape observables. We establish…

高能物理 - 唯象学 · 物理学 2018-10-26 Zhong-Bo Kang , Kyle Lee , Felix Ringer

We propose to utilize angularity distributions in Higgs boson decay to probe light quark Yukawa couplings at $e^+e^-$ colliders. Angularities $\tau_a$ are a class of 2-jet event shapes with variable and tunable sensitivity to the…

高能物理 - 唯象学 · 物理学 2024-03-04 Bin Yan , Christopher Lee

We consider the effects of a light quark mass in the soft-collinear effective theory (SCET) and we apply them to B -> X_s gamma in the endpoint region. We find that the reparameterization invariance can be extended by including the…

高能物理 - 唯象学 · 物理学 2009-11-11 Junegone Chay , Chul Kim , Adam K. Leibovich

With a large integrated luminosity expected at the Tevatron, a next-to-leading order (NLO) calculation is no longer sufficient to describe the data which yield the precision measurement of $M_W$, etc. Thus, we extend the…

高能物理 - 唯象学 · 物理学 2009-10-30 C. Balazs , C. -P. Yuan

We discuss perturbative and non-perturbative strong interaction effects in the pair production of stop squarks ($\tilde{t}_1$) at $e^+ e^-$ colliders. Events with an additional hard gluon allow to detect or exclude stop pair production even…

高能物理 - 唯象学 · 物理学 2011-09-13 Manuel Drees , Oscar J. P. Eboli

The amplitude for multiple soft gluon emissions, ordered in their relative softness, can be written as a product of infrared (IR) divergent loop-expanded soft gluon currents and the matrix elements. In a more recent work, Angeles-Martinez,…

高能物理 - 唯象学 · 物理学 2022-08-18 Aditya Pathak

We discuss the soft-collinear effective theory (SCET) and kinematic expansions in B-decays, focusing on recent results for color suppressed B -> D^(*) X decays. In particular we discuss model independent predictions for B^0 -> D^0 pi^0 and…

高能物理 - 唯象学 · 物理学 2009-11-10 Sonny Mantry , Dan Pirjol , Iain W. Stewart

At $e^+e^-$ and $ep$ colliders, the large fluxes of almost on-shell photons accompanying the lepton beams lead to the photoproduction of jets. As the centre-of-mass energy is increased, regions of smaller $x$ in the parton densities are…

高能物理 - 唯象学 · 物理学 2007-05-23 J. M. Butterworth , J. R. Forshaw , M. H. Seymour , J. K. Storrow , R. Walker

An interaction term is added to the QCD Lagrangian involving hadron and gluon fields. An effective vertex is calculated for such interactions through exchanges of reggeized gluons. This gives rise to an effective coupling for hadron-gluon…

高能物理 - 唯象学 · 物理学 2007-05-23 E. Gilboa

Within the colour dipole picture for deep inelastic scattering at small Bjorken $x$, we study the production of a pair of relatively hard jets via coherent diffraction. By "relatively hard" we mean that the transverse momenta of the two…

高能物理 - 唯象学 · 物理学 2022-07-14 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos , S. Y. Wei

At sub-eikonal order in the high-energy limit, helicity dependences are generally contained in the transverse components of the gluon field. In the gluon saturation regime, novel helicity effects arise from the nonlinear interaction between…

高能物理 - 唯象学 · 物理学 2024-11-21 Ming Li

Cold nuclear matter effects in reactions with nuclei at a future electron-ion collider (EIC) lead to a modification of semi-inclusive hadron production, jet cross sections, and jet substructure when compared to the vacuum. At leading order…

高能物理 - 唯象学 · 物理学 2018-11-21 Matthew D. Sievert , Ivan Vitev

In this plenary talk I discuss soft-collinear effective theory (SCET) as a framework for precision QCD phenomenology. Emphasis is placed on jet and heavy flavor observables accessible at current and future collider facilities. One of the…

高能物理 - 唯象学 · 物理学 2016-12-30 Ivan Vitev

The backward Compton scattering is a basic process at future higher energy photon colliders. To obtain a high probability of e->gamma conversion the density of laser photons in the conversion region should be so high that simultaneous…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Galynskii , E. Kuraev , M. Levchuk , V. Telnov

In the framework of the classical Glauber approach the exact analytical expression for the variance of the number of participants (wounded nucleons) for given centrality AA interactions is presented. It's shown, that in the case of…

高能物理 - 唯象学 · 物理学 2007-05-23 V. V. Vechernin

We derive a factorization theorem that allows for resummation of small-$x$ logarithms by exploiting Glauber operators in the soft collinear effective field theory. Our analysis is carried out for the hadronic tensor $W^{\mu\nu}$ in deep…

高能物理 - 唯象学 · 物理学 2023-03-27 Duff Neill , Aditya Pathak , Iain Stewart

This is a review of Glauber's asymptotic diffraction theory, in which diffractive scattering is described in terms of interference between semiclassical amplitudes, resulting from a stationary-phase approximation. Typically two such…

核理论 · 物理学 2019-10-17 Per Osland

In this proceedings I review the soft-collinear effective theory (SCET), an effective theory for energetic particles. I also discuss factorization in exclusive and inclusive B-> D^(*)X decays, and tests which can help distinguish whether…

高能物理 - 唯象学 · 物理学 2009-11-07 Iain W. Stewart

Soft-collinear effective theory (SCET) is applied to compute electroweak radiative corrections to Higgs production via gauge boson fusion, q q -> q q H. There are several novel features which make this process an interesting application of…

高能物理 - 唯象学 · 物理学 2012-08-21 Andreas Fuhrer , Aneesh V. Manohar , Wouter J. Waalewijn

We review selected results from a recent in-depth study of jet shapes and jet cross sections in ultra-relativistic reactions with heavy nuclei at the LHC arXiv:0810.2807 [hep-ph]. We demonstrate that at the highest collider energies these…

高能物理 - 唯象学 · 物理学 2009-07-22 Ivan Vitev , Ben-Wei Zhang , Simon Wicks