11-15 September 2017
Mexico/General timezone
- ismd2017@nucleares.unam.mx
Support
Proton structure, small-and large-x physics(II)
Date:
12 Sep 11:25 - 13:05
Conveners
-
- Bruno El-Bennich, Amir Rezaeian
- Chairperson: María Elena Tejeda-Yeomans
Timetable | Contribution List
Displaying 4
contributions
out of
4
As active data taking has moved to the LHC at CERN, more and more LHC
data have been included into fits of parton distribution functions.
An anomaly has arisen where formerly excellent agreement between
theoretical predictions and experiment in single-top-quark production
at the Tevatron is no longer quite as good. Is this indicative of a
deeper issue?
Presented by Prof. Zack SULLIVAN
on
12/9/2017
at
12:15
We construct small-x evolution equations for the quark and
gluon helicity distributions. The equations present a new type of
evolution, resumming double logarithms of energy, that is, powers of
$\alpha_s \, \ln^2 (1/x)$. We solve the equations both analytically and
numerically and obtain the following small-x asymptotics for the quark
and gluon helicity distributions: $\Delta q \sim \lef
... More
Presented by Prof. Yuri KOVCHEGOV
on
12/9/2017
at
11:25
The Weizsaecker-Williams distribution of linearly polarized gluons (and its fluctuations) at small x
Consider the production of a hard dijet in high-energy DIS with large average transverse momentum \vec{P} = (\vec{k1}-\vec{k2})/2 and small(er) momentum imbalance \vec{q} = \vec{k1}+\vec{k2}. The cross section involves a sum of an isotropic contribution proportional to the conventional Weizsaecker-Williams gluon distribution and of a contribution proportional to cos(2phi) times the WW distribution
... More
Presented by Adrian DUMITRU
on
12/9/2017
at
12:40
We evaluate the impact of recent developments in hadron phenomenology on constraining the electroweak effective theory Lagrangian beyond the standard model.
We focus, in particular, on the scalar and tensor components which can be measured in precision neutron beta decay.
We show how a class of new observables, the chiral-odd generalized parton distributions, along with the extraction of the t
... More
Presented by Dr. Aurore COURTOY
on
12/9/2017
at
11:50