Transverse Spin Dependent Drell Yan in QCD to O([alpha][sub S][sup 2] at Large P[sub[Tau]. 1: Virtual Corrections and Methods for the Real Emissions PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors investigate the role of the transverse spin dependence in Drell Yan lepton pair production to NLO in QCD at parton level. In the analysis the authors deal with the large p[sub[Tau]] distributions. They give very compact expressions for the virtual O([alpha][sub s][sup 2]) corrections to the cross section and show that the singularities factorize. The study is performed in the[ovr MS] scheme in Dimensional Regularization, and with the t'Hooft-Veltman prescription for[gamma][sub 5]. A discussion of the structure of the real emissions is included, and detailed methods for the study of these contributions are formulated.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors investigate the role of the transverse spin dependence in Drell Yan lepton pair production to NLO in QCD at parton level. In the analysis the authors deal with the large p[sub[Tau]] distributions. They give very compact expressions for the virtual O([alpha][sub s][sup 2]) corrections to the cross section and show that the singularities factorize. The study is performed in the[ovr MS] scheme in Dimensional Regularization, and with the t'Hooft-Veltman prescription for[gamma][sub 5]. A discussion of the structure of the real emissions is included, and detailed methods for the study of these contributions are formulated.
Author: Publisher: ISBN: Category : Languages : en Pages : 48
Book Description
The authors investigate the role of the transverse spin dependence in Drell Yan lepton pair production to NLO in QCD at parton level. In the analysis the authors deal with the large p{sub {Tau}} distributions. They give very compact expressions for the virtual O(?{sub s}2) corrections to the cross section and show that the singularities factorize. The study is performed in the {ovr MS} scheme in Dimensional Regularization, and with the tH̀ooft-Veltman prescription for?5. A discussion of the structure of the real emissions is included, and detailed methods for the study of these contributions are formulated.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors investigate the role of the transverse spin dependence in Drell Yan lepton pair production to NLO in QCD at parton level. In their analysis the authors deal with the large p{sub T} distributions. They give very compact expressions for the virtual O([alpha]{sub s}2) corrections to the cross section and show that the singularities factorize. The study is performed in the {ovr MS} scheme in Dimensional Regularization, and with the t'Hooft-Veltman prescription for [gamma]5. A discussion of the structure of the real emissions is included, and detailed methods for the study of these contributions are formulated.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A study of the order[alpha][sub s][sup 2] corrections to the Drell-Yan (non-singlet) differential cross section for incoming states of arbitrary longitudinal helicities is presented. The transverse momentum distributions, q[sub T], of the lepton pair are studied and the calculations of Ellis, Martinelli, and Petronzio (EMP) are extended to include polarized initial states. The authors use the[ovr MS] scheme and the t'Hooft-Veltman regularization for the helicity projectors. From the results one can obtain the bulk of the totally inclusive NNLO cross section for the production of a Drell-Yan pair in the non-singlet sector by a simple integration over the virtual photon momentum. They show that in the[ovr MS] scheme helicity is not conserved along the quark lines, unless a finite renormalization is done and one adapts the physical ([ovr MS[sub p]]) scheme. This aspect of the calculation is similar to the O([alpha][sub s][sup 2]) polarized production of single and double photons. The spin averaged unpolarized differential cross sections agree with the EMP calculations.
Author: Publisher: ISBN: Category : Languages : en Pages : 39
Book Description
A study of the order?{sub s}2 corrections to the Drell-Yan (non-singlet) differential cross section for incoming states of arbitrary longitudinal helicities is presented. The transverse momentum distributions, q{sub T}, of the lepton pair are studied and the calculations of Ellis, Martinelli, and Petronzio (EMP) are extended to include polarized initial states. The authors use the {ovr MS} scheme and the tH̀ooft-Veltman regularization for the helicity projectors. From the results one can obtain the bulk of the totally inclusive NNLO cross section for the production of a Drell-Yan pair in the non-singlet sector by a simple integration over the virtual photon momentum. They show that in the {ovr MS} scheme helicity is not conserved along the quark lines, unless a finite renormalization is done and one adapts the physical ({ovr MS{sub p}}) scheme. This aspect of the calculation is similar to the O(?{sub s}2) polarized production of single and double photons. The spin averaged unpolarized differential cross sections agree with the EMP calculations.
Author: Publisher: ISBN: Category : Languages : en Pages : 13
Book Description
We present parton-level analytical results for the next-to-leading order non-singlet virtual corrections to the Drell-Yan differential cross section. The dependence of the differential cross section on the helicity of the initial state partons is shown explicitly (the spins of the final state partons are summed). The calculation is implemented in dimensional regularization within the {ovr MS} scheme and with the t'Hooft Veltman prescriptions for the n-dimensional [gamma]5. Both the polarized initial state and the unpolarized cross sections can be obtained from our result. Our unpolarized cross section agrees with the previous result of Ellis, Martinelli and Petronzio in the non-singlet sector. 13 refs., 4 figs.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A study of the order [alpha]{sub s}2 corrections to the Drell-Yan (non-singlet) cross section for incoming states of arbitrary longitudinal helicities is presented. The study is performed in the case of the transverse momentum distributions, q{sub T}, of the lepton pair and extends the calculation of Ellis Martinelli and Petronzio (EMP) to the polarized case. They use the {ovr MS} scheme and the t'Hooft-Veltman regularization for the helicity projectors. From their results one can obtain the bulk of the totally inclusive NNLO cross section for the production of a Drell-Yan pair in the non-singlet sector by a simple integration over the heavy photon momentum. They show that in the {ovr MS} helicity is not conserved, unless a finite renormalization is done to reenter into a physical ({ovr MS}{sub p}) scheme. This aspect of the calculation follows the same trend as in polarized production of single and double photon to O([alpha]{sub s}2). In the unpolarized limit they reproduce all the results of EMP.
![Transverse Spin Dependent Drell Yan in QCD to O([alpha][sub S][sup 2] at Large P[sub[Tau]. 1: Virtual Corrections and Methods for the Real Emissions PDF](https://books.google.com/books/content/images/frontcover/TjXEjwEACAAJ?fife=w150-h200)
Author: ![Transverse Spin Dependent Drell Yan in QCD to O([alpha][sub S][sup 2] at Large P[sub[Tau]. 1: Virtual Corrections and Methods for the Real Emissions PDF](https://books.google.com/books/content/images/frontcover/TjXEjwEACAAJ?fife=w80-h100)
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Author: Sanghyeon Chang
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Author: ![Transverse Spin Dependent Drell-Yan in QCD to O([alpha]{sub S}2) at Arge P{sub T} (I). Virtual Corrections and Methods for the Real Emissions PDF](https://books.google.com/books/content/images/frontcover/dtulnQAACAAJ?fife=w80-h100)
Author: ![Spin Dependent Drell Yan in QCD to O([alpha][sub S][sup 2] (I). (The Non-singlet Sector). PDF](https://books.google.com/books/content/images/frontcover/KETVjwEACAAJ?fife=w80-h100)
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Author: ![Spin Dependent Drell-Yan in QCD to O([alpha]{sub S}2) (I). (The Non-singlet Sector). PDF](https://books.google.com/books/content/images/frontcover/Ai9EAQAACAAJ?fife=w80-h100)
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