Radiative<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>Meson Decays into<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi><mml:mi>π</mml:mi><mml:mi>γ</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi><mml:mi>π</mml:mi><mml:mi>π</mml:mi><mml:mi>γ</mml:mi></mml:math>Final States

Nishida, S.; Nakao, M.; Abe, K.; Abe, Tomohiro; Ahn, Byoung Sup; Aihara, H.; Akatsu, M.; Asano, Y.; Aushev, T.; Bakich, A. M.; Ban, Y.; Banaś, E.; Bartel, W.; Bay, A.; Bedny, I.; Bondar, A.; Bożek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Casey, B. C.K.; Chang, P.; Chào, Y.; Cheon, B. G.; Chistov, R.; Choi, S. K.; Choi, Y.; Danilov, M.; Liu, Dong; Drutskoy, A.; Eidelman, S.; Eiges, V.; Enari, Y.; Fukunaga, C.; Gabyshev, N.; Gershon, T.; Gordon, A.; Gotow, K.; Guo, R. S.; Haba, J.; Hara, T.; Hayashii, H.; Hazumi, M.; Heenan, E. M.; Higuchi, I.; Higuchi, T.; Hojo, T.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W.-S.; Hsu, S.-C.; Huang, Hsuan‐Cheng; Igaki, T.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwamoto, Masami; Iwasaki, H.; Iwasaki, Y.; Jałocha, P.; Jang, H. K.; Kang, J. H.; Kapusta, P.; Kataoka, S. U.; Katayama, N.; Kawai, H.; Kawakami, Y.; Kawamura, N.; Kawasaki, T.; Kichimi, H.; Kim, D. W.; Kim, Heejong; Kim, H. J.; Kim, H. O.; Kim, Hyun Woo; Kim, T. H.; Kinoshita, K.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, Sanjeev; Kwon, Y. J.; Lange, J. S.; Leder, G.; Lee, S. H.; Li, J.; Lu, R.-S.; MacNaughton, J.; Majumder, G.; Mandl, F.; Matsumoto, S.; Matsumoto, T.; Mikami, Y.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Moloney, G. R.; Mori, Shigeki; Nagamine, T.; Nagasaka, Y.; Nakadaira, T.; Nakano, E.; Nam, J. W.; Natkaniec, Z.; Neichi, K.; Nitoh, O.; Noguchi, S.; Nozaki, T.; Ogawa, S.; Ohno, F.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Pałka, H.; Park, C. W.; Park, H.; Park, K. S.; Peak, L. S.; Perroud, J. P.; Peters, M.; Piilonen, L. E.; Różańska, M.; Rybicki, K.; Sagawa, H.; Saitoh, Saburou; Sakai, Y.; Sakamoto, H.; Satapathy, M.; Satpathy, A.; Schneider, O.; Schrenk, S.; Schwanda, C.; Semenov, S.; Senyo, K.; Seuster, R.; Sevior, M. E.; Shibuya, H.; Shwartz, B.; Sidorov, V.; Singh, J. B.; Stanič, S.; Sugi, A.; Sugiyama, A.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, K.; Suzuki, S.; Takahashi, T.; Takasaki, F.; Tamai, K.; Tamura, N.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tokuda, S.; Tomoto, M.; Tomura, T.; Tovey, S. N.; Trabelsi, K.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Ueno, K.; Uno, S.; Ushiroda, Y.; Varner, G.; Varvell, K. E.; Wang, C. C.; Wang, C. H.; Wang, J. G.; Wang, M.-Z.; Watanabe, Y.; Won, E.; Yabsley, B.; Yamada, Y.; Yamaguchi, A.; Yamamoto, H.; Yamashita, Y.; Yamauchi, M.; Yuan, Y.; Yusa, Y.; Zhang, J.; Zhang, Z. P.; Zhilich, V.; Žontar, D.

doi:10.1103/physrevlett.89.231801

Cited by 46 publications

(17 citation statements)

References 14 publications

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“…(24), characterizing the magnitude of the K Ã ð1680Þ resonant contribution relative to the K 1 ð1270Þ one, is determined by the fit to Eqs. (32) and (33). Note that the parameter c has reflected the strength of the K Ã ð1680Þ → ρK transition.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Another resonance K Ã ð1680Þ contributes via the B → K Ã ð1680Þð→ ρKÞγ channel [33,34]. Since the Gegenbauer moments of the K Ã ð1680Þ DAs are unknown, we simply assume the asymptotic form zð1 − zÞ for the z dependence of the corresponding ρK DAs.…”

Section: Pseudoscalar-vector Distribution Amplitudesmentioning

confidence: 99%

“…[32], which contain timelike form factors with certain power-law behavior, is adopted. The resonant contributions from the states K 1 ð1270Þ and K Ã ð1680Þ to the ρK system dominate [33,34]. Therefore, the parametrization of the DAs Φ ρK follows that for quasitwo-body B meson decays [17,18,35,36], namely, the Breit-Wigner model.…”

Section: Introductionmentioning

confidence: 99%

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Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

Wang

Liu

et al. 2018

Phys. Rev. D

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We study the three-body radiative decays B → ϕðρÞKγ induced by a flavor-changing neutral current in the perturbative QCD approach. Pseudoscalar-vector (PV) distribution amplitudes (DAs) are introduced for the final-state ϕK (ρK) pair to capture important infrared dynamics in the region with a small PV-pair invariant mass. The dependence of these PV DAs on the parton momentum fraction is parametrized in terms of the Gegenbauer polynomials, and the dependence on the meson momentum fraction is derived through their normalizations to timelike PV form factors. In addition to the dominant electromagnetic penguin, the subleading chromomagnetic penguin, quark-loop and annihilation diagrams are also calculated. After determining the PV DAs from relevant branching-ratio data, the direct CP asymmetries and decay spectra in the PV-pair invariant mass are predicted for each B → ϕðρÞKγ mode.

show abstract

Section: Numerical Resultsmentioning

confidence: 99%

Section: Pseudoscalar-vector Distribution Amplitudesmentioning

confidence: 99%

See 1 more Smart Citation

Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

Wang

Liu

et al. 2018

Phys. Rev. D

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“…Here q 2 is the invariant di-lepton mass. The interesting feature of the new LHCb data [3] is that it indicates a non-dominant D-wave contribution, contary to expectations from both existing B 0 → J/ψ K − π + [4] and B 0 → K − π + γ [5,6] data and previous theory work [7], where the K * 2 (1430) state plays a dominant role in the m Kπ ∼ 1430 MeV region. The new results could point toward a revised understanding of the underlying formfactors.…”

Section: Introductionmentioning

confidence: 57%

Angular analyses of exclusive B¯→XJℓ1
Dey
2017
Phys. Rev. D
4
0
4
0
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As an update to our previous calculation for spin J ≤ 2, we present the angular moments for exclusive B → XJ 1 2, where 1 is a charged massless lepton and 2 is a charged or neutral massless lepton, and XJ is a mesonic system with spin J ≤ 4. The expected applications include higher resonances in the [Kπ] system in B 0 → K − π + µ − µ + at LHCb in Run II, and in the [ππ] system for B → ππ − ν at Belle II. For the J ≤ 2 case, we also provide a set of consistency relations among the measured moments observables and validate them against the latest measurements from LHCb.

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“…Inclusive branching ratios were measured in four charged modes, B + → K + π − π + γ, B 0 → K 0 π + π − γ, B + → K 0 π + π 0 γ and B 0 → K + π − π 0 γ, for an hadronic invariant mass m(Kππ) in a range between 1 GeV/c 2 and 1.8 or 2 Gev/c 2 . Both the Belle [13,14] and Babar [15] collaborations have observed the first two charged and neutral B decay modes involving a pair of charged pions resulting in the following averaged branching ratios [16]:…”

Section: B → Kππγmentioning

confidence: 99%

Reexamining the photon polarization in B→Kππγ

Gronau

Pirjol²

2017

Phys. Rev. D

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We reexamine, update and extend a suggestion we made fifteen years ago for measuring the photon polarization in b → sγ by observing in B → Kππγ an asymmetry of the photon with respect to the Kππ plane. Asymmetries are calculated for different charged final states due to intermediate K 1 (1400) and K 1 (1270) resonant states. Three distinct interference mechanisms are identified contributing to asymmetries at different levels for these two kaon resonances. For K 1 (1400) decays including a final state π 0 an asymmetry around +30% is calculated, dominated by interference of two intermediate K * π states, while an asymmetry around +10% in decays including final π + π − is dominated by interference of S and D wave K * π amplitudes. In decays via K 1 (1270) to final states including a π 0 a negative asymmetry is favored up to −10% if one assumes S wave dominance in decays to K * π and Kρ, while in decays involving π + π − the asymmetry can vary anywhere in the range −13% to +24% depending on unknown phases. For more precise asymmetry predictions in the latter decays we propose studying phases in K 1 → K * π, Kρ by performing dedicated amplitude analyses of B → J/ψ(ψ ′ )Kππ. In order to increase statistics in studies of B → Kππγ we suggest using isospin symmetry to combine in the same analysis samples of charged and neutral B decays.

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RadiativeBMeson Decays intoKπγandKππγFinal States

Cited by 46 publications

References 14 publications

Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

Angular analyses of exclusive B¯→XJℓ1
Dey
2017
Phys. Rev. D
4
0
4
0
View full text Add to dashboard Cite

Reexamining the photon polarization in B→Kππγ

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About

RadiativeBMeson Decays intoKπγandKππγFinal States

Cited by 46 publications

References 14 publications

Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

Angular analyses of exclusive B¯→XJℓ1Dey 2017Phys. Rev. D4040View full textAdd to dashboardCite

Reexamining the photon polarization in B→Kππγ

Contact Info

Product

Resources

About

Angular analyses of exclusive B¯→XJℓ1
Dey
2017
Phys. Rev. D
4
0
4
0
View full text Add to dashboard Cite