Erratum to: Elements of a theory for multiparton interactions in QCD

Diehl, Markus; Ostermeier, Daniel; Schäfer, Andreas

doi:10.1007/jhep03(2016)001

Cited by 26 publications

(16 citation statements)

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“…A similar structure is observed in many modern applications where soft gluon interactions are factorized, e.g. event shapes [17,18], p T -resummation [18,19], multi-parton scattering [20][21][22].…”

Section: Introductionmentioning

confidence: 53%

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Systematic analysis of double-scale evolution

Scimemi

Vladimirov

2018

J. High Energ. Phys.

164

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Often the factorization of differential cross sections results in the definition of fundamental hadronic functions/distributions which have a double-scale evolution, as provided by a pair of coupled equations. Typically, the two scales are the renormalization and rapidity scales. The two-dimensional structure of their evolution is the object of the present study. In order to be more specific, we consider the case of the transverse momentum dependent distributions (TMD). Nonetheless, most of our findings can be used with other double-scale parton distributions. On the basis of the two-dimensional structure of TMD evolution, we formulate the general statement of the ζ-prescription introduced in [1], and we define an optimal TMD distribution, which is a scaleless model-independent universal non-perturbative function. Within this formulation the non-perturbative definition of the distribution is disentangled from the evolution, which clarifies the separation of perturbative and non-perturbative effects in the phenomenology. A significant part of this work is devoted to the study of the effects of truncation of perturbation theory on the double-scale evolution. We show that within truncated perturbation theory the solution of evolution equations is ambiguous and this fact generates extra uncertainties within the resummed cross-section. The alternatives to bypass this issue are discussed. Finally, we discuss the sources and distribution of the scale variation uncertainties.

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Section: Introductionmentioning

confidence: 53%

“…Nonetheless, our methods and conclusions can possibly be adapted to other non-perturbative functions/distributions. The possible areas of extension include jet-observables [18], resummation in momentum space [19], double-parton distributions [20].…”

Section: Discussionmentioning

confidence: 99%

Systematic analysis of double-scale evolution

Scimemi

Vladimirov

2018

J. High Energ. Phys.

164

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“…Refs. [4][5][6][7][8][9][10][11][12] and references therein. Most common examples with a significant DPS effect include meson pairs [10], four identified jets [11] or leptons [12] etc.…”

Section: Introductionmentioning

confidence: 99%

DPS mechanism for associated $c\bar c b\bar b$ production in $AA$ UPCs

Huayra¹,

Oliveira²,

Pasechnik³

2020

Preprint

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We discuss the associated cc and b b quark pairs production in the double-parton scattering (DPS) process in ultraperipheral (UPCs) AA collisions. We derive an analogue of the inclusive DPS pocket formula and the photon-energy dependent effective cross section considering an overlap between the hard SPS scatterings. We provide numerical predictions for the DPS cross sections for the ccb b production process at the typical energies of AA UPCs at the LHC and FCC colliders and also characterize the A dependence of the total UPC DPS cross section.

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“…[35,36]) is rather well established but still not fully applicable for phenomenological studies. In general, the DPS cross sections can be expressed in terms of the doubleparton distribution functions (dPDFs).…”

Section: B Double-parton Scatteringmentioning

confidence: 99%

“…The flavor, spin, and color correlations lead, in principle, to interference effects that result in breaking the pocket-formula (see e.g., Refs. [35,36]). In any case, the spin polarization of the two partons from one hadron can be mutually correlated, especially when the partons are relatively close in phase space (having comparable x's).…”

Section: Double-parton Scattering Effects Inmentioning

confidence: 99%

Double-parton scattering effects in D0B+ and B+B+ meson-meson pair production in proton-proton collisions at the LHC

Maciuła

Szczurek

2018

Phys. Rev. D

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We extend our previous studies of double-parton scattering (DPS) to simultaneous production of cc and bb and production of two pairs of bb. The calculation is performed within a factorized ansatz. Each parton scattering is calculated within the k T -factorization approach. The hadronization is done with the help of fragmentation functions. Production of D mesons in our framework was tested in our previous works. Here, we present our predictions for B mesons. A good agreement is achieved with the LHCb data. We present our results for ccbb and bbbb final states. For completeness, we compare results for double-and singleparton scattering (SPS). As for the cccc final state, the DPS dominates over the SPS, especially for small transverse momenta. We present several distributions and integrated cross sections with realistic cuts for simultaneous production of D 0 B þ and B þ B þ , suggesting future experimental studies at the LHC.

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Erratum to: Elements of a theory for multiparton interactions in QCD

Cited by 26 publications

References 0 publications

Systematic analysis of double-scale evolution

Systematic analysis of double-scale evolution

DPS mechanism for associated $c\bar c b\bar b$ production in $AA$ UPCs

Double-parton scattering effects in D0B+ and B+B+ meson-meson pair production in proton-proton collisions at the LHC

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