<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">ρ</mml:mi></mml:math>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">ω</mml:mi></mml:math>Mixing and Direct<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">CP</mml:mi></mml:math>Violation in Hadronic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="ital

Gardner, Susan; O'Connell, Heath Bland; Thomas, A. W.

doi:10.1103/physrevlett.80.1834

Cited by 49 publications

(86 citation statements)

References 29 publications

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“…In order to obtain a large signal for direct CP violation, we need some mechanism to make both sin δ and r large. We stress that ρ − ω mixing has the dual advantages that the strong phase difference is large (passing through 90 o at the ω resonance) and well known [4,5]. With this mechanism, to first order in isospin violation, we have the following results when the invariant mass of π + π − is near the ω resonance mass,…”

Section: Formalismmentioning

confidence: 77%

“…The charge symmetry violating mixing between ρ 0 and ω, can be extremely important in this regard. In particular, it can lead to a large CP violation in B decays such as B ± → ρ 0 (ω)π ± → π + π − π ± , because the strong phase passes through 90 o at the ω resonance [3,4,5]. Recently, CLEO reported new data [6] on B → ρπ.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced directCPviolation inB±→ρ0π

2001

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We study direct CP violation in the hadronic decay B ± → ρ 0 π ± , including the effect of ρ − ω mixing. We find that the CP violating asymmetry is strongly dependent on the CKM matrix elements, especially the Wolfenstein parameter η.For fixed N c (the effective parameter associated with factorization), the CP violating asymmetry, a, has a maximum of order 30% − 50% when the invariant mass of the π + π − pair is in the vicinity of the ω resonance. The sensitivity of the asymmetry, a, to N c is small. Moreover, if N c is constrained using the latest experimental branching ratios from the CLEO collaboration, we find that the sign of sin δ is always positive. Thus, a measurement of direct CP violation in B ± → ρ 0 π ± would remove the mod(π) ambiguity in arg − V td V ⋆ tb V ud V ⋆ ub .

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Section: Formalismmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Enhanced directCPviolation inB±→ρ0π

2001

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“…14) we found a large range of values of N ef f c and CKM matrix elements over which the theoretical results are consistent with experimental data from CLEO, BABAR and BELLE. Each of the models, (1,2,3,4) and (5), gives an allowed range of N ef f c . Even though strong differences appear between the two classes of models, because of the different used form factors, we are not able to draw strong conclusions about the dependence on the form factors.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…We stress that ρ − ω mixing has the dual advantages that the strong phase difference is large (passing through 90 o at the ω resonance) and well known [4,5]. With this mechanism (see Fig.…”

Section: ρ − ω Mixingmentioning

confidence: 99%

“…The charge symmetry violating mixing between ρ 0 and ω can be extremely important in this regard. In particular, it can lead to a large CP violation in B decays, such as B ±,0 → ρ 0 (ω)K ±,0 → π + π − K ±,0 , because the strong phase passes through 90 o at the ω resonance [3,4,5]. We have collected the latest data for b to s transitions concentrating on the CLEO, BABAR and BELLE branching ratio results in our approach.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced directCPviolation inB±,0→π+
Leitner
¹
,
Guo
²
,
Thomas
³

2002
Phys. Rev. D
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We investigate in a phenomenological way, direct CP violation in the hadronic decays B ±,0 → π + π − K ±,0 where the effect of ρ − ω mixing is included. If N ef f c (the effective parameter associated with factorization) is constrained using the most recent experimental branching ratios (to ρ 0 K 0 , ρ ± K ∓ , ρ ± K 0 , ρ 0 K ± and ωK ± ) from the BABAR, BELLE and CLEO Collaborations, we get a maximum CP violating asymmetry, a max , in the range −25% to +49% for B − → π + π − K − and −24% to +55% forB 0 → π + π −K 0 . We also find that CP violation is strongly dependent on the Cabibbo-Kobayashi-Maskawa matrix elements. Finally, we show that the sign of sin δ is always positive in the allowed range of N ef f c and hence, a measurement of direct CP violation in B ±,0 → π + π − K ±,0 would remove the mod(π) ambiguity in arg − VtsV ⋆ tb VusV ⋆ ub .

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A model-independent analysis of final-state interactions in B ¯ d / s 0 → J / ψ π π $$ {\overline{B}}_{d/s}^0\to J/\psi \pi \pi $$

Daub¹,

Hanhart

Kubis³

2016

J. High Energ. Phys.

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Exploiting B-meson decays for Standard Model tests and beyond requires a precise understanding of the strong final-state interactions that can be provided modelindependently by means of dispersion theory. This formalism allows one to deduce the universal pion-pion final-state interactions from the accurately known ππ phase shifts and, in the scalar sector, a coupled-channel treatment with the kaon-antikaon system. In this work an analysis of the decaysB 0 d → J/ψπ + π − andB 0 s → J/ψπ + π − is presented. We find very good agreement with the data up to 1.05 GeV in the ππ invariant mass, with a number of parameters reduced significantly compared to a phenomenological analysis. In addition, the phases of the amplitudes are correct by construction, a crucial feature for many CP violation measurements in heavy-meson decays.

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ρ-ωMixing and DirectCPViolation in Hadronic
Susan Gardner
¹
,
Heath Bland O'Connell
²
,
A. W. Thomas
³

Cited by 49 publications

References 29 publications

Enhanced directCPviolation inB±→ρ0π

Enhanced directCPviolation inB±→ρ0π

Enhanced directCPviolation inB±,0→π+
Leitner
¹
,
Guo
²
,
Thomas
³

2002
Phys. Rev. D
Self Cite
8
0
6
0
View full text Add to dashboard Cite

A model-independent analysis of final-state interactions in B ¯ d / s 0 → J / ψ π π $$ {\overline{B}}_{d/s}^0\to J/\psi \pi \pi $$

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ρ-ωMixing and DirectCPViolation in HadronicSusan Gardner1, Heath Bland O'Connell2, A. W. Thomas3

Cited by 49 publications

References 29 publications

Enhanced directCPviolation inB±→ρ0π

Enhanced directCPviolation inB±→ρ0π

Enhanced directCPviolation inB±,0→π+Leitner1, Guo2, Thomas3 2002Phys. Rev. DSelf Cite8060View full textAdd to dashboardCite

A model-independent analysis of final-state interactions in B ¯ d / s 0 → J / ψ π π $$ {\overline{B}}_{d/s}^0\to J/\psi \pi \pi $$

Contact Info

Product

Resources

About

ρ-ωMixing and DirectCPViolation in Hadronic
Susan Gardner
¹
,
Heath Bland O'Connell
²
,
A. W. Thomas
³

Enhanced directCPviolation inB±,0→π+
Leitner
¹
,
Guo
²
,
Thomas
³

2002
Phys. Rev. D
Self Cite
8
0
6
0
View full text Add to dashboard Cite