Predictions for the Sivers single-spin asymmetry from holographic QCD

نویسندگان

چکیده

A new approach to nonperturbative QCD, holographic light-front provides a comprehensive model for hadron dynamics and spectroscopy, incorporating color confinement, universal mass scale, the prediction of massless pion in chiral limit, connections between spectroscopy mesons, baryons tetraquarks across full spectrum. In this article we present predictions Sivers asymmetry related transverse momentum distributions proton based on wavefunctions baryon eigenstate predicted by QCD.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sivers single-spin asymmetry in photon-jet production.

We study a weighted asymmetry in the azimuthal distribution of photon-jet pairs produced in the process pp-->gamma jet X with a transversely polarized proton. We focus on the contribution of the Sivers effect only, considering experimental configurations accessible at the Relativistic Heavy Ion Collider. We show that predictions for the asymmetry, obtained in terms of gluonic-pole cross section...

متن کامل

On Unique Predictions for Single Spin Azimuthal Asymmetry

Theoretically there are two approaches to predict single spin azimuthal asymmetries. One is to take transverse momenta of partons into account by using transverse momentum dependent parton distributions, while another is to take asymmetries as a twist-3 effect. The nonperturbative effects in these approaches are parameterized with different matrix elements and predictions can be different. Rece...

متن کامل

SINGLE SPIN ASYMMETRY FOR p ↑ p → πX IN PERTURBATIVE QCD

Within the QCD-improved parton model and assuming the factorization theorem to hold in the helicity basis and for higher twist contributions, we show how non zero single spin asymmetries in hadron-hadron high energy and moderately large pT inclusive processes can be obtained, even in massless perturbative QCD, provided the quark intrinsic motion is taken into account. A simple model is construc...

متن کامل

Double transverse spin asymmetry in the pp̄ Drell-Yan process from Sivers functions

We show that the transverse double spin asymmetry (DSA) in the Drell-Yan process contributed only from the Sivers functions can be picked out by the weighting function QT M (cos(φ−φS1) cos(φ− φS2) + 3 sin(φ − φS1) sin(φ − φS2)). The asymmetry is proportional to the product of two Sivers functions from each hadron f ⊥(1) 1T × f ⊥(1) 1T . Using two sets of Sivers functions extracted from the semi...

متن کامل

Predictions for Qcd from Supersymmetry

We review the construction of the effective Lagrangians of the VenezianoYankielowicz (VY) type for two non-supersymmetric theories containing one Dirac fermion in the two-index antisymmetric or symmetric representation of the gauge group (orientifold theories). Since these theories are planar equivalent, at N → ∞ to super Yang-Mill their effective Lagrangians coincides with the bosonic part of ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical review

سال: 2022

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevd.105.114032