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Pregled bibliografske jedinice broj: 342982

New Dipole Penguin Contribution to K ---> pi pi decays

Eeg, Jan O.; Kumerički, Krešimir; Picek, Ivica
New Dipole Penguin Contribution to K ---> pi pi decays // Physics letters. B, 669 (2008), 150-155 doi:10.1016/j.physletb.2008.09.039 (međunarodna recenzija, članak, znanstveni)

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Naslov
New Dipole Penguin Contribution to K ---> pi pi decays

Autori
Eeg, Jan O. ; Kumerički, Krešimir ; Picek, Ivica

Izvornik
Physics letters. B (0370-2693) 669 (2008); 150-155

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
K mesons; electroweak transitions; quark models; chiral lagrangians; CP violation

Sažetak
We point out that the standard chromomagnetic penguin dipole operator has a counterpart corresponding to off-shell momenta for external quarks. By employing the chiral quark model, we show that this new dipole penguin operator has the same bosonisation as the standard Q_6 operator. Accordingly, this new operator enlarges by ~ 5 % the referent Q_6 operator, which gives the dominant contribution to the CP-violating ratio epsilon'/epsilon and also gives an important contribution to the Delta I = 1/2 amplitude.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
119-0982930-1016 - Elementarne čestice, teorija polja i kozmologija (Picek, Ivica, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Krešimir Kumerički (autor)

Avatar Url Ivica Picek (autor)

Poveznice na cjeloviti tekst rada:

doi www.slac.stanford.edu arxiv.org arxiv.org

Citiraj ovu publikaciju:

Eeg, Jan O.; Kumerički, Krešimir; Picek, Ivica
New Dipole Penguin Contribution to K ---> pi pi decays // Physics letters. B, 669 (2008), 150-155 doi:10.1016/j.physletb.2008.09.039 (međunarodna recenzija, članak, znanstveni)
Eeg, J., Kumerički, K. & Picek, I. (2008) New Dipole Penguin Contribution to K ---> pi pi decays. Physics letters. B, 669, 150-155 doi:10.1016/j.physletb.2008.09.039.
@article{article, author = {Eeg, Jan O. and Kumeri\v{c}ki, Kre\v{s}imir and Picek, Ivica}, year = {2008}, pages = {150-155}, DOI = {10.1016/j.physletb.2008.09.039}, keywords = {K mesons, electroweak transitions, quark models, chiral lagrangians, CP violation}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2008.09.039}, volume = {669}, issn = {0370-2693}, title = {New Dipole Penguin Contribution to K ---> pi pi decays}, keyword = {K mesons, electroweak transitions, quark models, chiral lagrangians, CP violation} }
@article{article, author = {Eeg, Jan O. and Kumeri\v{c}ki, Kre\v{s}imir and Picek, Ivica}, year = {2008}, pages = {150-155}, DOI = {10.1016/j.physletb.2008.09.039}, keywords = {K mesons, electroweak transitions, quark models, chiral lagrangians, CP violation}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2008.09.039}, volume = {669}, issn = {0370-2693}, title = {New Dipole Penguin Contribution to K ---> pi pi decays}, keyword = {K mesons, electroweak transitions, quark models, chiral lagrangians, CP violation} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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