Spin physics at short distances

Craigie, N.S.; Hidaka, K.; Jacob, M.; Renard, F.M.

doi:10.1016/0370-1573(93)90008-2

Cited by 120 publications

(63 citation statements)

References 120 publications

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“…However, since supersymmetric particles have not yet been discovered, supersymmetry must be broken at low energies, which makes the superpartners heavy in comparison to their Standard Model counterparts. Supersymmetric phenomenology at colliders has been extensively investigated for basic processes at leading order [106][107][108][109][110][111][112][113][114][115][116][117] and next-to-leading order [118][119][120][121][122][123][124] of perturbative QCD. More recently, for some processes, soft-gluon radiation has been resummed to all orders in the strong coupling constant and the results have been matched with the next-to-leading order calculations [125][126][127][128][129][130].…”

Section: The Most General Minimal Supersymmetric Standard Modelmentioning

confidence: 99%

A comprehensive approach to new physics simulations

et al. 2011

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We describe a framework to develop, implement and validate any perturbative Lagrangian-based particle physics model for further theoretical, phenomenological and experimental studies. The starting point is FEYNRULES, a MATHEMATICA package that allows to generate Feynman rules for any Lagrangian and then, through dedicated interfaces, automatically pass the corresponding relevant information to any supported Monte Carlo event generator. We prove the power, robustness and flexibility of this approach by presenting a few examples of new physics models (the Hidden Abelian Higgs Model, the general Two-Higgs-Doublet Model, the most general Minimal Supersymmetric Standard Model, the Minimal Higgsless Model, Universal and Large Extra Dimensions, and QCD-inspired effective Lagrangians) and their implementation/validation in FEYNARTS/FORMCALC, CALCHEP, MADGRAPH/MADEVENT, and SHERPA.

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Section: The Most General Minimal Supersymmetric Standard Modelmentioning

confidence: 99%

A comprehensive approach to new physics simulations

et al. 2011

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“…For produced W , the dominant contributions come from u d ! W , and the spin asymmetry is approximately given by [2,12,13]…”

Section: Introductionmentioning

confidence: 99%

Threshold resummation forW-boson production at BNL RHIC

Mukherjee

Vogelsang

2006

Phys. Rev. D

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We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp ! W X at the BNL Relativistic Heavy Ion Collider (RHIC). At RHIC, polarized protons are available, and spin asymmetries for this process will be used for precise measurements of the up and down quark and antiquark distributions in the proton. The corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We perform the resummation to next-to-leading logarithmic accuracy, for the rapidity-differential cross section. We find that resummation leads to relatively moderate effects on the cross sections and spin asymmetries.

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“…When calculating the required helicity dependent matrix elements we have to project onto the helicity states of the incoming particles. This is achieved by using the standard relations (see, e.g., [13])…”

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confidence: 99%

Next-to-leading order QCD corrections to the polarized photoproduction of heavy flavors

Bojak¹,

Stratmann²

1998

Physics Letters B

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We present a calculation of the next-to-leading order (O(α 2 s α)) QCD corrections to heavy flavor photoproduction with longitudinally polarized beams. We apply our results to study the longitudinal spin asymmetry for the total charm quark production cross section which will be utilized by the forthcoming COMPASS experiment at CERN to obtain first direct information on the polarized gluon density ∆g. We also briefly discuss the main theoretical uncertainties inherent in this calculation. In particular we demonstrate that the factorization scale dependence is considerably reduced in next-to-leading order.

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Spin physics at short distances

Cited by 120 publications

References 120 publications

A comprehensive approach to new physics simulations

A comprehensive approach to new physics simulations

Threshold resummation forW-boson production at BNL RHIC

Next-to-leading order QCD corrections to the polarized photoproduction of heavy flavors

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