Estimate of the charming penguin contributions to B -> pi pi

Melić, Blaženka (2004) Estimate of the charming penguin contributions to B -> pi pi. European Physical Journal C: Particles and Fields, 33 (1). S250-S252. ISSN 1434-6044

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Abstract

We consider the problem of factorization in B decays and illustrate the calculation of nonfactorizable contributions employing the QCD light-cone sum rule method. We present a more detailed calculation of the "charming penguin" contributions as a potential source of the substantial nonfactorizable O(1/m(b)) effects in the B -> pi pi decay. Although the predicted corrections are not sizable, by calculating the CP asymmetry we illustrate how such corrections can accumulate to a visible effect. In conclusion, nonfactorizable contributions in nonleptonic B decays into charmonium are briefly discussed.

Item Type:	Article
Uncontrolled Keywords:	charming penguin; factorization
Subjects:	NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Theoretical Physics Division
Projects:	Project title Project leader Project code Project type Temeljne interakcije u fizici elementarnih čestica i kozmologiji Guberina, Branko 0098002 MZOS
Depositing User:	Blaženka Melić
Date Deposited:	29 May 2013 12:27
URI:	http://fulir.irb.hr/id/eprint/545
DOI:	10.1140/epjcd/s2003-03-124-3

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