prikaz prve stranice dokumenta Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models
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Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models
Fizika B, 8 (1999), 4; 505-534. urn:nbn:hr:217:666929
Klabučar, Dubravko; Kumerički, Krešimir; Melić, Blaženka; Picek, Ivica

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

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Klabučar, D., Kumerički, K., Melić, B. i Picek, I. (1999). Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models. Fizika B, 8. (4), 505-534. Preuzeto s https://urn.nsk.hr/urn:nbn:hr:217:666929

Klabučar, Dubravko, et al. "Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models." Fizika B, vol. 8, br. 4, 1999, str. 505-534. https://urn.nsk.hr/urn:nbn:hr:217:666929

Klabučar, Dubravko, Krešimir Kumerički, Blaženka Melić i Ivica Picek. "Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models." Fizika B 8, br. 4 (1999): 505-534. https://urn.nsk.hr/urn:nbn:hr:217:666929

Klabučar, D., et al. (1999) 'Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models', Fizika B, 8(4), str. 505-534. Preuzeto s: https://urn.nsk.hr/urn:nbn:hr:217:666929 (Datum pristupa: 22.11.2024.)

Klabučar D, Kumerički K, Melić B, Picek I. Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models. Fizika B [Internet]. 1999. [pristupljeno 22.11.2024.];8(4):505-534. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:666929

D. Klabučar, K. Kumerički, B. Melić i I. Picek, "Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models", Fizika B, vol. 8, br. 4, str. 505-534, 1999. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:666929. [Citirano: 22.11.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:666929
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Naslov (engleski)Nucleon strangeness as the response to a strangeness-sensitive probe in a class of hadron models
AutorDubravko Klabučar
AutorKrešimir Kumerički
AutorBlaženka Melić
AutorIvica Picek
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
On top of its valence quarks, the full nucleon ground state may contain appreciable admixture of s`s pairs already at small momentum transfers. This paper discusses strangeness in the mean-field type of nucleon models, and exemplifies this by explicit calculations in the MIT bag model enriched by the presence of instantons. We calculate the instanton contribution to the strangeness in the MIT bag (on top of the standard contribution to strangeness found in that model). Although we do it in an essentially perturbative way, we present a detailed derivation of the formula expressing nucleon matrix elements of bilinear strange quark operators, in terms of a model valence nucleon state and interactions producing quark-antiquark fluctuations on top of that valence state. We do it in detail to clarify our argument that in the context of the mean-field type of quark models (where a Fock state expansion exists and where the nucleon state can be constructed out of single-quark states), the resulting formula acquires a significance beyond perturbation theory. The derivation combines the usage of the evolution operator containing a strangeness source, and Feynman-Hellmann theorem.
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaFizika B
Brojčani podacivol. 8, br. 4, str. 505-534
p-ISSN1330-0016
URN:NBNurn:nbn:hr:217:666929
Datum objave publikacije1999
URL dokumentahttp://fizika.hfd.hr/fizika_b/bv99/b8p505.htm
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Datum i vrijeme pohrane2019-10-07 11:34:52