Angular momentum sum rule for spin-one hadronic systems

Taneja, Swadhin K.; Kathuria, Kunal; Liuti, Simonetta; Goldstein, Gary R.

doi:10.1103/physrevd.86.036008

Cited by 47 publications

(50 citation statements)

References 26 publications

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“…Results on the angular momenta for u and d quarks. Data are from the combined analyses [18,46,59] and from [81][82][83][84][85][86][87].…”

Section: Ji's Sum Rulementioning

confidence: 99%

Status of DVMP, DVCS and GPDs

Kroll

2015

EPJ Web of Conferences

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Abstract. The analysis of exclusive meson leptoproduction (DVMP) within the handbag approach is reviewed and the parametrization of the generalized parton distributions (GPDs) is discussed in some detail with the main interest focused of the GPDs H and E. Applications of the GPDs extracted from DVMP to other hard exclusive processes as for instance deeply virtual Compton scattering (DVCS) and an evaluation of Ji's sum rule are also presented.

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“…Results on the angular momenta for u and d quarks. Data are from the combined analyses [18,46,59] and from [81][82][83][84][85][86][87].…”

Section: Ji's Sum Rulementioning

confidence: 99%

Status of DVMP, DVCS and GPDs

Kroll

2015

EPJ Web of Conferences

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“…Accordingly, in the recent analysis in Ref. [26], the contribution of the nucleonic GPD E to the angular momentum carried by the quark in the deuteron has been found to be very small, if only conventional nuclear effects are taken into account.…”

Section: Impulse Approximation Analysis Of 3 He Gpdsmentioning

confidence: 99%

Extracting generalized neutron parton distributions from3He data

Rinaldi

Scopetta

2013

Phys. Rev. C

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An impulse approximation (IA) analysis is described of the generalized parton distributions (GPDs) H and E of the 3 He nucleus, quantities which are accessible in hard exclusive processes, such as coherent deeply virtual Compton scattering (DVCS). The calculation is based on the Av18 interaction. The electromagnetic form factors are correctly recovered in the proper limits. The sum of the GPDs H and E of 3 He, at low momentum transfer, is largely dominated by the neutron contribution, thanks to the unique spin structure of 3 He. This nucleus is therefore very promising for the extraction of the neutron information. By increasing the momentum transfer, however, this conclusion is somehow hindered by the the fast growing proton contribution. Besides, even when the neutron contribution to the GPDs of 3 He is largely dominating, the procedure of extracting the neutron GPDs from it could be, in principle, nontrivial. A technique is therefore proposed, independent on both the nuclear potential and the nucleon model used in the calculation, able to take into account the nuclear effects included in the IA analysis and to safely extract the neutron information at values of the momentum transfer large enough to allow the measurements. Thanks to this observation, coherent DVCS should be considered a key experiment to access the neutron GPDs and, in turn, the orbital angular momentum of the partons in the neutron.

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“…In the following, some background information will be repeated in this section more extensively for proper context, not for redundancy purposes. The work that follows in this section was written collaboratively [10].…”

Section: Spin One Sum Rulementioning

confidence: 99%

“…We also stress many pertinent points that are overlooked in this important step, and address many misconceptions surrounding the various steps. We have already provided our decomposition of step 2), specifically for the deuteron, in [10]. We have also derived our GPD spin sum rule in 3), again for the deuteron.…”

Angular momentum sum rule for spin-one hadronic systems

Cited by 47 publications

References 26 publications

Status of DVMP, DVCS and GPDs

Status of DVMP, DVCS and GPDs

Extracting generalized neutron parton distributions from3He data

Understanding Angular Momentum in Hadrons

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