The linked dipole chain Monte Carlo

Kharraziha, Hamid; Lönnblad, Leif

doi:10.1088/1126-6708/1998/03/006

Cited by 60 publications

(64 citation statements)

References 23 publications

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“…In a previous paper [8] we compared the results with ARIADNE [26] and LDCMC [27]. ARIADNE provides an implementation of the Colour Dipole Model (CDM) of a chain of independently radiating dipoles formed by emitted gluons [28].…”

Section: Phenomenological Qcd Modelsmentioning

confidence: 99%

Forward π°-meson production at HERA

Adloff

1999

Physics Letters B

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High transverse momentum π • -mesons have been measured with the H1 detector at HERA in deep-inelastic ep scattering events at low Bjorken-x, down to x ≈ 4·10 −5 . The measurement is performed in a region of small angles with respect to the proton remnant in the laboratory frame of reference, namely the forward region, and corresponds to central rapidity in the centre of mass system of the virtual photon and proton. This region is expected to be particularly sensitive to QCD effects in hadronic final states. Differential cross-sections for inclusive π • -meson production are presented as a function of Bjorken-x and the fourmomentum transfer Q 2 , and as a function of transverse momentum and pseudorapidity. A recent numerical BFKL calculation and predictions from QCD models based on DGLAP parton evolution are compared with the data.

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Section: Phenomenological Qcd Modelsmentioning

confidence: 99%

Forward π°-meson production at HERA

Adloff

1999

Physics Letters B

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“…But the generation of UPDF from the CCFM equations is a complicated task. So, in general, the Monte Carlo event generators [10][11][12][13][14][15][16][17] are the main users of these equations. Since there is not a complete quark version of the CCFM formalism, the alternative prescriptions are used for producing the quark and the gluon UPDFs.…”

Section: Introductionmentioning

confidence: 99%

A new phenomenological investigation of KMR and MRW unintegrated parton distribution functions

et al. 2015

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We address the longitudinal proton structure function, F L (x, Q 2 ), from the k t -factorization formalism by using the unintegrated parton distribution functions (UPDF) which are generated through the KMR and MRW procedures. The LO UPDF of the KMR prescription is extracted, by taking into account the PDF of Martin et al, i.e., MSTW2008-LO and MRST99-NLO, and next the NLO UPDF of the MRW scheme is generated through the set of MSTW2008-NLO PDF as the input. The different aspects of F L (x, Q 2 ) in the two approaches, as well as its perturbative and nonperturbative parts, are calculated. Then the comparison of F L (x, Q 2 ) is made with the data given by the ZEUS and H1 collaborations. It is demonstrated that the extracted F L (x, Q 2 ), based on the UPDF of two schemes, are consistent with the experimental data, and to a good approximation they are independent of the input PDF. But the one developed from the KMR prescription has better agreement with the data with respect to that of MRW. As has been suggested, by lowering the factorization scale or the Bjorken variable in the related experiments it may be possible to analyze the present theoretical approaches more accurately.

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“…Therefore, the simplicity and efficiency of this method makes it a very compelling tool for phenomenological studies at LHC. In addition, the great advantage is that it can directly be implemented in present Monte Carlo event generators, such as CASCADE [10] and LDCMC [11]. Thus one does not need to write new and complicated codes but can simply modify existing ones.…”

Section: Introductionmentioning

confidence: 99%

CCFM Evolution with Unitarity Bound

Avsar¹

2009

Proceedings of the XVII International Workshop on Deep-Inelastic Scattering and Related Topics

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We perform a detailed study of the CCFM evolution, complemented with an absorptive boundary which mimics the non-linear dynamics of parton saturation. We present results for the evolution of the unintegrated gluon density in the presence of saturation and extract the energy dependence of the emerging saturation momentum. We show that CCFM and BFKL evolution lead to almost identical predictions after including the effects of gluon saturation and of the running of the coupling.

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The linked dipole chain Monte Carlo

Cited by 60 publications

References 23 publications

Forward π°-meson production at HERA

Forward π°-meson production at HERA

A new phenomenological investigation of KMR and MRW unintegrated parton distribution functions

CCFM Evolution with Unitarity Bound

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