Trojan Penguins and Isospin Violation in Hadronic B Decays

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Some rare hadronic decays of B mesons, such as B {yields} {pi}K, are sensitive to isospin-violating contributions from physics beyond the Standard Model. Although commonly referred to as electroweak penguins, such contributions can often arise through tree-level exchanges of heavy particles, or through strong-interaction loop diagrams. The Wilson coefficients of the corresponding electroweak penguin operators are calculated in a large class of New Physics models, and in many cases are found not to be suppressed with respect to the QCD penguin coefficients. Several tests for these effects using observables in B{sup {+-}} {yields} {pi}K decays are discussed, and nontrivial bounds ... continued below

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45 pages

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Grossman, yuval September 10, 1999.

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Some rare hadronic decays of B mesons, such as B {yields} {pi}K, are sensitive to isospin-violating contributions from physics beyond the Standard Model. Although commonly referred to as electroweak penguins, such contributions can often arise through tree-level exchanges of heavy particles, or through strong-interaction loop diagrams. The Wilson coefficients of the corresponding electroweak penguin operators are calculated in a large class of New Physics models, and in many cases are found not to be suppressed with respect to the QCD penguin coefficients. Several tests for these effects using observables in B{sup {+-}} {yields} {pi}K decays are discussed, and nontrivial bounds on the couplings of the various New Physics models are derived.

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45 pages

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  • Other Information: PBD: 10 Sep 1999

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  • Report No.: SLAC-PUB-8243
  • Grant Number: AC03-76SF00515
  • DOI: 10.2172/12482 | External Link
  • Office of Scientific & Technical Information Report Number: 12482
  • Archival Resource Key: ark:/67531/metadc624674

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 10, 1999

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 2, 2016, 6:12 p.m.

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Grossman, yuval. Trojan Penguins and Isospin Violation in Hadronic B Decays, report, September 10, 1999; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc624674/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.