scholarly journals Parton distribution function nuclear corrections for charged lepton and neutrino deep inelastic scattering processes

2009 ◽  
Vol 80 (9) ◽  
Author(s):  
I. Schienbein ◽  
J. Y. Yu ◽  
K. Kovařík ◽  
C. Keppel ◽  
J. G. Morfín ◽  
...  
Keyword(s):  
Distribution Function ◽  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Parton Distribution ◽  
Charged Lepton ◽  
Parton Distribution Function

scholarly journals AN EFFECTIVE FIELD THEORY LOOK AT DEEP INELASTIC SCATTERING

2010 ◽  
Vol 25 (24) ◽  
pp. 2039-2049
Author(s):  
GIL PAZ
Keyword(s):  
Field Theory ◽  
Distribution Function ◽  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Effective Field Theory ◽  
Parton Distribution ◽  
Parton Distribution Function ◽  
High Energy ◽  
Effective Field ◽  
Nonlocal Operator

This talk discusses the effective field theory view of deep inelastic scattering. In such an approach, the standard factorization formula of a hard coefficient multiplied by a parton distribution function arises from matching of QCD onto an effective field theory. The DGLAP equations can then be viewed as the standard renormalization group equations that determines the cutoff dependence of the nonlocal operator whose forward matrix element is the parton distribution function. As an example, the non-singlet quark splitting function is derived directly from the renormalization properties of the nonlocal operator itself. This approach, although discussed in the literature, does not appear to be well known to the larger high energy community. In this talk we give a pedagogical introduction to this subject.

scholarly journals The challenge of the EMC effect: Existing data and future directions

2014 ◽  
Vol 23 (08) ◽  
pp. 1430013 ◽  
Author(s):  
Simona Malace ◽  
David Gaskell ◽  
Douglas W. Higinbotham ◽  
Ian C. Cloët
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Cross Sections ◽  
Charged Lepton ◽  
Current Status ◽  
Theoretical Understanding ◽  
Future Directions ◽  
Precise Data ◽  
Emc Effect ◽  
Existing Data

Since the discovery that the ratio of inclusive charged lepton (per-nucleon) cross-sections from a nucleus A to the deuteron is not unity — even in deep inelastic scattering kinematics — a great deal of experimental and theoretical effort has gone into understanding the phenomenon. The EMC effect, as it is now known, shows that even in the most extreme kinematic conditions the effects of the nucleon being bound in a nucleus cannot be ignored. In this paper, we collect the most precise data available for various nuclear to deuteron ratios, as well as provide a commentary on the current status of the theoretical understanding of this thirty year old effect.

scholarly journals Updating and optimizing error parton distribution function sets in the Hessian approach. II.

2019 ◽  
Vol 100 (11) ◽  
Author(s):  
Tie-Jiun Hou ◽  
Zhite Yu ◽  
Sayipjamal Dulat ◽  
Carl Schmidt ◽  
C.-P. Yuan
Keyword(s):  
Distribution Function ◽  
Parton Distribution ◽  
Parton Distribution Function

scholarly journals αs from global fits of parton distribution functions

2016 ◽  
Vol 31 (25) ◽  
pp. 1630023 ◽  
Author(s):  
S. Alekhin ◽  
J. Blümlein ◽  
S.-O. Moch
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Parton Distribution ◽  
Distribution Functions ◽  
Scattering Data ◽  
Hard Scattering ◽  
Coupling Constant ◽  
Parton Distribution Functions ◽  
The Status

The status of the determination of the strong coupling constant [Formula: see text] from deep-inelastic scattering and related hard scattering data is reviewed.

scholarly journals CAN POLARIZED DRELL-YAN SHED MORE LIGHT ON THE PROTON SPIN?

1992 ◽  
Vol 07 (29) ◽  
pp. 2695-2702 ◽  
Author(s):  
PRAKASH MATHEWS ◽  
V. RAVINDRAN
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Parton Distribution ◽  
Factorization Method ◽  
Distribution Functions ◽  
Proton Spin ◽  
Leading Order ◽  
Parton Distribution Functions ◽  
First Moment ◽  
Polarized Deep Inelastic Scattering

We analyze polarized Drell-Yan process using the factorization method and derive operator definitions for polarized parton distribution functions. We demonstrate that a factorization analogous to that in the unpolarized Drell-Yan case holds in this process. We study the leading order gluonic contribution to the first moment of polarized Drell-Yan function and show that it is consistent with the results obtained from polarized deep inelastic scattering.

scholarly journals Measurement of the W boson mass

2022 ◽  
Vol 2022 (1) ◽  
Author(s):  
◽  
R. Aaij ◽  
A. S. W. Abdelmotteleb ◽  
C. Abellán Beteta ◽  
T. Ackernley ◽  
...  
Keyword(s):  
Distribution Function ◽  
Parton Distribution ◽  
W Boson ◽  
Parton Distribution Function ◽  
Boson Mass ◽  
Proton Collision ◽  
Proton Proton ◽  
Lhcb Experiment ◽  
Proton Proton Collision ◽  
Pm 10

Abstract The W boson mass is measured using proton-proton collision data at $$ \sqrt{s} $$ s = 13 TeV corresponding to an integrated luminosity of 1.7 fb−1 recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/pT distribution of a sample of W → μν decays and the ϕ* distribution of a sample of Z → μμ decays the W boson mass is determined to be$$ {m}_w=80354\pm {23}_{\mathrm{stat}}\pm {10}_{\mathrm{exp}}\pm {17}_{\mathrm{theory}}\pm {9}_{\mathrm{PDF}}\mathrm{MeV}, $$ m w = 80354 ± 23 stat ± 10 exp ± 17 theory ± 9 PDF MeV , where uncertainties correspond to contributions from statistical, experimental systematic, theoretical and parton distribution function sources. This is an average of results based on three recent global parton distribution function sets. The measurement agrees well with the prediction of the global electroweak fit and with previous measurements.

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