Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
gamma*N -> N* (1520) transition form factors in light cone QCD sum rules
Date
2014-11-25
Author
Alıyev, Tahmasıb
Savcı, Mustafa
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
53
views
0
downloads
Cite This
The gamma*N -> N* (1520) reaction is studied in the framework of the light cone QCD sum rules method. The sum rules for the multipole form factors, namely, for the magnetic dipole G(M)(Q(2)), electric quadrupole G(E)(Q(2)), and Coulomb quadrupole G(C)(Q(2)) [i.e., form factors responsible for the gamma*N -> N* (1520) transition] are derived. Using these sum rules, the helicity amplitudes are presented as combinations of these multipole form factors, and their Q(2) dependences are studied. We compare our results on the helicity amplitudes with those of the spectator model predictions and with the existing experimental data.
Subject Keywords
Nucleon
,
Region
URI
https://hdl.handle.net/11511/38160
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.90.096012
Collections
Department of Physics, Article
Suggestions
OpenMETU
Core
Electromagnetic form factors of octet baryons in QCD
Alıyev, Tahmasıb; Savcı, Mustafa (Elsevier BV, 2013-06-10)
The electromagnetic form factors of octet baryons are estimated within light cone QCD sum rules method, using the most general form of the interpolating current for baryons. A comparison of our predictions on the magnetic dipole and electric form factors with the results of other approaches is performed.
Sigma(Q)Lambda(Q) transition magnetic moments in light cone QCD sum rules
Alıyev, Tahmasıb; Özpineci, Altuğ; Savcı, Mustafa (2002-05-01)
Using the general form of Sigma(Q) and Lambda(Q) (Q=b or c) currents, Sigma(Q)Lambda(Q) transition magnetic moments are calculated in the framework of the light cone QCD sum rules method. In this approach nonperturbative effects are described by the photon wave functions and only two-particle photon wave functions are taken into account. Our predictions of the transition magnetic moments are mu(Sigmac)Lambda(c)=-(1.5+/-0.4)mu(N) and mu(Sigmab)Lambda(b)=-(1.6+/-0.4)mu(N). A comparison of our results with the...
Axial vector transition form factors of N -> Delta in QCD
Küçükarslan, Ayşe; Özdem, Ulaş; Özpineci, Altuğ (Elsevier BV, 2016-12)
The isovector axial vector form factors of N -> Delta transition are calculated by employing Light-cone QCD sum rules. The analytical results are analyzedby both the conventional method, and also by a Monte Carlo based approach which allows one to scan all of the parameter space. The predictions are also compared with the results in the literature, where available. Although the MonteCarlo analysis predicts large uncertainties in the predicted results, the predictions obtained by the conventional analysis ar...
kappa K+pi(-) vertex in light cone QCD sum rules
Baytemir, G.; SARAÇ OYMAK, YASEMİN; Yılmaz, Osman (American Physical Society (APS), 2010-05-01)
In this work we study the kappa K+pi(-) vertex in the framework of light cone QCD sum rules. We predict the coupling constant g kappa K+pi(-) to be g kappa K+pi(-) = (6.0 +/- 1.0) GeV and estimate the scalar f(0) - sigma mixing angle from the experimental ratio g(2)(kappa -> K pi)/g(2)(sigma -> pi pi).
Sigma(Q)Lambda(Q)pi coupling constant in light cone QCD sum rules
Azizi, K.; Bayar, M.; Özpineci, Altuğ (American Physical Society (APS), 2009-03-01)
The strong coupling constants g(Sigma Q)Lambda(Q)pi (Q=b and c) are studied in the framework of the light cone QCD sum rules using the most general form of the baryonic currents. The predicted coupling constants are used to estimate the decay widths for the Sigma(Q)->Lambda(Q)pi decays which are compared with the predictions of the other approaches and existing experimental data.
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
T. Alıyev and M. Savcı, “gamma*N -> N* (1520) transition form factors in light cone QCD sum rules,”
PHYSICAL REVIEW D
, pp. 0–0, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38160.