Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation models
We demonstrate that a nonzero strangeness contribution to the spacelike electromagnetic form factor of the nucleon is evidence for a strange-antistrange asymmetry in the nucleon’s light-front wave function, thus implying different nonperturbative contributions to the strange and antistrange quark di...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 December 2018
|
| In: |
Physical review
Year: 2018, Jahrgang: 98, Heft: 11, Pages: 114004 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.98.114004 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1103/PhysRevD.98.114004 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.98.114004 
|
| Verfasserangaben: | HLFHS Collaboration, Raza Sabbir Sufian, Tianbo Liu, Guy F. de Téramond, Hans Günter Dosch, Stanley J. Brodsky, Alexandre Deur, Mohammad T. Islam, and Bo-Qiang Ma |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1663596026 | ||
| 003 | DE-627 | ||
| 005 | 20220816141546.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 190425s2018 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1103/PhysRevD.98.114004 |2 doi | |
| 035 | |a (DE-627)1663596026 | ||
| 035 | |a (DE-599)KXP1663596026 | ||
| 035 | |a (OCoLC)1341211805 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Sufian, Raza Sabbir |e VerfasserIn |0 (DE-588)1140458582 |0 (DE-627)898478693 |0 (DE-576)493793828 |4 aut | |
| 245 | 1 | 0 | |a Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation models |c HLFHS Collaboration, Raza Sabbir Sufian, Tianbo Liu, Guy F. de Téramond, Hans Günter Dosch, Stanley J. Brodsky, Alexandre Deur, Mohammad T. Islam, and Bo-Qiang Ma |
| 264 | 1 | |c 10 December 2018 | |
| 300 | |a 17 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 25.04.2018 | ||
| 520 | |a We demonstrate that a nonzero strangeness contribution to the spacelike electromagnetic form factor of the nucleon is evidence for a strange-antistrange asymmetry in the nucleon’s light-front wave function, thus implying different nonperturbative contributions to the strange and antistrange quark distribution functions. A recent lattice QCD calculation of the nucleon strange quark form factor predicts that the strange quark distribution is more centralized in coordinate space than the antistrange quark distribution, and thus the strange quark distribution is more spread out in light-front momentum space. We show that the lattice prediction implies that the difference between the strange and antistrange parton distribution functions, s(x)−¯s(x), is negative at small-x and positive at large-x. We also evaluate the strange quark form factor and s(x)−¯s(x) using a baryon-meson fluctuation model and a novel nonperturbative model based on light-front holographic QCD. This procedure leads to a Veneziano-like expression of the form factor, which depends exclusively on the twist of the hadron and the properties of the Regge trajectory of the vector meson which couples to the quark current in the hadron. The holographic structure of the model allows us to introduce unambiguously quark masses in the form factors and quark distributions preserving the hard scattering counting rule at large-Q2 and the inclusive counting rule at large-x. Quark masses modify the Regge intercept which governs the small-x behavior of quark distributions, therefore modifying their small-x singular behavior. Both nonperturbative approaches provide descriptions of the strange-antistrange asymmetry and intrinsic strangeness in the nucleon consistent with the lattice QCD result. | ||
| 700 | 1 | |a Dosch, Hans Günter |d 1936- |e VerfasserIn |0 (DE-588)106206745 |0 (DE-627)500674655 |0 (DE-576)160772710 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Physical review |d Ridge, NY : American Physical Society, 2016 |g 98(2018,11) Artikel-Nummer 114004, 17 Seiten |h Online-Ressource |w (DE-627)846313510 |w (DE-600)2844732-3 |w (DE-576)454495811 |x 2470-0029 |7 nnas |a Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation models |
| 773 | 1 | 8 | |g volume:98 |g year:2018 |g number:11 |g pages:114004 |g extent:17 |a Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation models |
| 856 | 4 | 0 | |u https://doi.org/10.1103/PhysRevD.98.114004 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u https://link.aps.org/doi/10.1103/PhysRevD.98.114004 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20190425 | ||
| 993 | |a Article | ||
| 994 | |a 2018 | ||
| 998 | |g 106206745 |a Dosch, Hans Günter |m 106206745:Dosch, Hans Günter |d 130000 |e 130000PD106206745 |k 0/130000/ |p 4 | ||
| 999 | |a KXP-PPN1663596026 |e 3453343778 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"physDesc":[{"extent":"17 S."}],"relHost":[{"name":{"displayForm":["published by American Physical Society"]},"origin":[{"dateIssuedDisp":"2016-","publisher":"American Physical Society","dateIssuedKey":"2016","publisherPlace":"Ridge, NY"}],"id":{"zdb":["2844732-3"],"eki":["846313510"],"issn":["2470-0029"]},"physDesc":[{"extent":"Online-Ressource"}],"title":[{"title_sort":"Physical review","title":"Physical review"}],"disp":"Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation modelsPhysical review","type":{"media":"Online-Ressource","bibl":"periodical"},"note":["Gesehen am 14.03.2023"],"recId":"846313510","corporate":[{"roleDisplay":"Herausgebendes Organ","display":"American Physical Society","role":"isb"}],"language":["eng"],"pubHistory":["3rd series, volume 93, number 1 (January 2016)-"],"titleAlt":[{"title":"Particles, fields, gravitation, and cosmology"}],"part":{"volume":"98","text":"98(2018,11) Artikel-Nummer 114004, 17 Seiten","extent":"17","year":"2018","issue":"11","pages":"114004"}}],"name":{"displayForm":["HLFHS Collaboration, Raza Sabbir Sufian, Tianbo Liu, Guy F. de Téramond, Hans Günter Dosch, Stanley J. Brodsky, Alexandre Deur, Mohammad T. Islam, and Bo-Qiang Ma"]},"origin":[{"dateIssuedKey":"2018","dateIssuedDisp":"10 December 2018"}],"id":{"doi":["10.1103/PhysRevD.98.114004"],"eki":["1663596026"]},"note":["Gesehen am 25.04.2018"],"type":{"media":"Online-Ressource","bibl":"article-journal"},"language":["eng"],"recId":"1663596026","person":[{"family":"Sufian","given":"Raza Sabbir","display":"Sufian, Raza Sabbir","roleDisplay":"VerfasserIn","role":"aut"},{"display":"Dosch, Hans Günter","roleDisplay":"VerfasserIn","role":"aut","family":"Dosch","given":"Hans Günter"}],"title":[{"title":"Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation models","title_sort":"Nonperturbative strange-quark sea from lattice QCD, light-front holography, and meson-baryon fluctuation models"}]} | ||
| SRT | |a SUFIANRAZANONPERTURB1020 | ||