Physics with charm particles produced in neutrino interactions. A historical recollection

Dore, U.

doi:10.1140/epjh/e2012-20019-x

Cited by 7 publications

(3 citation statements)

References 116 publications

(107 reference statements)

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“…Although the heavy quarks have an important role in the study of many processes in the standard model and beyond it, one of the significant aspects of the nucleon structure is the distribution of strange and antistrange sea quarks and the possible asymmetry between them. More precise knowledge in this field is very important for better understanding of the nucleon structure and properties of the sea quarks and also for describing processes such as W boson production in association with charm jets [40] or single top quark production [41], as well as neutrino interactions [42,43]. Moreover, the s −s asymmetry in the nucleon can also be very important for explaining experimental results such as the NuTeV anomaly reported by the NuTeV Collaboration [45].…”

Section: Discussionmentioning

confidence: 99%

“…More precise knowledge in this field is very important for better understanding of the nucleon structure and properties of the sea quarks and also for describing processes such as W boson production in association with charm jets [40] or a single top quark production [41], as well as neutrino interactions [42,43]. In the present study, we concentrate on the intrinsic strange quark and calculate its distribution in the nucleon using various light-cone models.…”

Section: Introductionmentioning

confidence: 99%

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Intrinsic strange distributions in the nucleon from the light-cone models

Salajegheh

2015

Phys. Rev. D

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Precise knowledge of the strange and antistrange quark distributions of the nucleon is a major step toward better understanding of the strong interaction and the nucleon structure. Moreover, the s −s asymmetry in the nucleon plays an important role in some physical processes involving hadrons. The goal of this paper is the study of intrinsic strange contribution to the strange sea of the nucleon. To this aim, we calculate the intrinsic strange distributions from the various light-cone models, including Brodsky, Hoyer, Peterson, and Sakai (BHPS); scalar five-quark and meson-baryon models and then compare their results. These models can lead to the rather different distributions for the intrinsic strange that are dominated in different values of x. Furthermore, the meson-baryon model leads to the s−s asymmetry that can be comparable in some situations to the result obtained from the global analysis of PDFs. We also present a simple parametrization for each model prediction of intrinsic strange distribution.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intrinsic strange distributions in the nucleon from the light-cone models

Salajegheh

2015

Phys. Rev. D

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“…Experimentally, the measurements of charm production with dimuon events in the final state in deep inelastic scattering (DIS) [72,73,74,75,76,77], and also W boson production in association with a single charm quark in proton-proton collisions [78,79] can give us valuable information about the s − s asymmetry in the proton. It is believed that the anomaly seen by the NuTeV experiment [80] in the extraction of the Weinberg angle from neutrino-nucleus DIS can be explained by assuming the s − s asymmetry in the proton sea.…”

Section: Introductionmentioning

confidence: 99%

Study of the s−s¯ asymmetry in the proton

Goharipour

2018

Nuclear Physics A

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The study of s −s asymmetry is essential to better understand of the structure of nucleon and also the perturbative and nonperturbative mechanisms for sea quark generation. Actually, the nature and dynamical origins of this asymmetry have always been an interesting subject to research both experimentally and theoretically. One of the most powerful models can lead to s−s asymmetry is the meson-baryon model (MBM). In this work, using a simplified configuration of this model suggested by Pumplin, we calculate the s −s asymmetry for different values of cutoff parameter Λ, to study the dependence of model to this parameter and also to estimate the theoretical uncertainty imposed on the results due to its uncertainty. Then, we study the evolution of distributions obtained both at next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) using different evolution schemes. It is shown that the evolution of the intrinsic quark distributions from a low initial scale, as suggested by Chang and Pang, is not a good choice at NNLO using variable flavor number scheme (VFNS).

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Flavor structure of the nucleon sea

Chang

Peng

2014

Progress in Particle and Nuclear Physics

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Physics with charm particles produced in neutrino interactions. A historical recollection

Cited by 7 publications

References 116 publications

Intrinsic strange distributions in the nucleon from the light-cone models

Intrinsic strange distributions in the nucleon from the light-cone models

Study of the s−s¯ asymmetry in the proton

Flavor structure of the nucleon sea

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