Study of three-body charmless<i>B</i>decays

Garmash, A.; Abe, Kazuo; Abe, Naoya; Abe, Tomohiro; Adachi, I.; Aihara, H.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Ban, Y.; Banaś, E.; Behari, S.; Behera, P. K.; Bondar, A.; Bożek, A.; Bračko, M.; Browder, T. E.; Casey, B. C.K.; Chang, P.; Chào, Y.; Cheon, B. G.; Chistov, R.; Choi, S.-K.; Choi, Y.; Liu, Dong; Drutskoy, A.; Eidelman, S.; Eiges, V.; Fang, F.; Fujii, Hirofumi; Fukunaga, C.; Fukushima, M.; Gabyshev, N.; Gershon, T.; Gordon, A.; Gotow, K.; Guo, R.; Haba, J.; Hamasaki, Hiroshi; Handa, F.; Hara, K.; Hara, T.; Hastings, N. C.; Hayashii, H.; Hazumi, M.; Heenan, E. M.; Higuchi, I.; Higuchi, T.; Hojo, T.; Hokuue, T.; Hoshi, Y.; Hoshina, K.; Hou, S.; Hou, W.-S.; Huang, Hsuan‐Cheng; Igarashi, Y.; Iijima, T.; Ikeda, H.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, H.; Iwasaki, M.; Jackson, D.; Jang, H. K.; Kang, J. H.; Kang, J. S.; Kapusta, P.; Katayama, N.; Kawai, H.; Kawamura, N.; Kawasaki, T.; Kichimi, H.; Kim, D. W.; Kim, Heejong; Kim, H. J.; Kim, H. O.; Kim, Hyun Woo; Kim, S. K.; Kim, T. H.; Kinoshita, K.; Konishi, H.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, Sanjeev; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Leder, G.; Lee, S. H.; Limosani, A.; Liventsev, D.; Lu, R.-S.; MacNaughton, J.; Mandl, F.; Marlow, D.; Matsumoto, S.; Matsumoto, T.; Mikami, Y.; Miyake, H.; Miyata, H.; Moloney, G. R.; Moorhead, G. F.; Mori, Shigeki; Mori, Takashi; Murakami, Akira; Nagamine, T.; Nagasaka, Y.; Nagashima, Y.; Nakadaira, T.; Nakano, E.; Nakao, M.; Nam, J. W.; Natkaniec, Z.; Neichi, K.; Nishida, S.; Nitoh, O.; 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. S.; Park, C. W.; Park, K. S.; Peak, L. S.; Perroud, J. P.; Peters, M.; Piilonen, L. E.; Rybicki, K.; Ryuko, J.; Sagawa, H.; Sakai, Y.; Sakamoto, H.; Satapathy, M.; Satpathy, A.; Schneider, O.; Schrenk, S.; Semenov, S.; Senyo, K.; Sevior, M. E.; Shibuya, H.; Singh, J. B.; Stanič, S.; Sugiyama, A.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, K.; Suzuki, S.; Swain, S. K.; Takahashi, T.; Takasaki, F.; Takita, M.; Tamai, K.; Tamura, N.; Tanaka, J.; Tanaka, Minoru; Taylor, G. N.; Teramoto, Y.; Tomoto, M.; Tomura, T.; Tovey, S. N.; Trabelsi, K.; Tsukamoto, T.; Uehara, S.; Ueno, K.; Uno, S.; Ushiroda, Y.; Wang, C. C.; Wang, C. H.; Wang, J. G.; Wang, M. Z.; Watanabe, Y.; Won, E.; Yabsley, B.; Yamada, Y.; Yamaga, M.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yokoyama, M.; Yuan, Y.; Zhang, C. C.; Zhang, J.; Zheng, Y.; Zhilich, V.; Žontar, D.

doi:10.1103/physrevd.65.092005

Cited by 77 publications

(12 citation statements)

References 17 publications

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Section: Introductionmentioning

confidence: 99%

“…An amplitude for a three-body hadronic B meson decay, as a coherent sum of nonresonant and resonant contributions, leads to nonuniform distributions of events described by differential branching fractions [2-16] and of direct CP asymmetries [17][18][19][20] in a Dalitz plot [21]. Dalitzplot analyses of abundant three-body hadronic B meson decays from different collaborations (11)(12)(13)(14)(15)(16), Belle [5,6,[8][9][10] and LHCb [17][18][19]) have revealed valuable information on involved strong and weak dynamics.On the theoretical side, substantial progress on three-body hadronic B meson decays by means of symmetry principles and factorization theorems has been made, although rigorous justification of these approaches is not yet available. Isospin, U-spin and flavor SU(3) symmetries were adopted in [22][23][24][25][26][27][28][29][30][31], and the role of the CP T invariance in three-body B meson decays was discussed in Refs [32,33].…”

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confidence: 99%

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Quasi-two-body decays B→Kρ→Kππ in perturbative QCD approach

2016

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We analyze the quasi-two-body decays B → Kρ → Kππ in the perturbative QCD (PQCD) approach, in which final-state interactions between the pions in the resonant regions associated with the P -wave states ρ(770) and ρ ′ (1450) are factorized into two-pion distribution amplitudes. Adopting experimental inputs for the time-like pion form factors involved in two-pion distribution amplitudes, we calculate branching ratios and direct CP asymmetries of the B → Kρ(770), Kρ ′ (1450) → Kππ modes. It is shown that agreement of theoretical results with data can be achieved, through which Gegenbauer moments of the P -wave two-pion distribution amplitudes are determined. The consistency between the three-body and two-body analyses of the B → Kρ(770) → Kππ decays supports the PQCD factorization framework for exclusive hadronic B meson decays. PACS numbers: 13.20.He, 13.25.Hw, 13.30.Eg I. INTRODUCTIONStrong dynamics contained in three-body hadronic B meson decays is much more complicated than in two-body cases, because of entangled nonresonant and resonant contributions, and significant final-state interactions [1]. Nonresonant contributions may not be negligible in these decays, as indicated by the observations made in Refs [2-7]. Quasi-two-body channels through intermediate scalar, vector and tensor resonances, which produce hadron pairs with final-state interactions, usually dominate total branching fractions. An amplitude for a three-body hadronic B meson decay, as a coherent sum of nonresonant and resonant contributions, leads to nonuniform distributions of events described by differential branching fractions [2-16] and of direct CP asymmetries [17][18][19][20] in a Dalitz plot [21]. Dalitzplot analyses of abundant three-body hadronic B meson decays from different collaborations (11)(12)(13)(14)(15)(16), Belle [5,6,[8][9][10] and LHCb [17][18][19]) have revealed valuable information on involved strong and weak dynamics.On the theoretical side, substantial progress on three-body hadronic B meson decays by means of symmetry principles and factorization theorems has been made, although rigorous justification of these approaches is not yet available. Isospin, U-spin and flavor SU(3) symmetries were adopted in [22][23][24][25][26][27][28][29][30][31], and the role of the CP T invariance in three-body B meson decays was discussed in Refs [32,33]. The QCD factorization [34,35] has been widely applied to studies of three-body charmless hadronic B meson decays [36][37][38][39][40][41][42][43][44][45][46][47][48], including, for instance, detailed investigation on factorization properties of the B + → π + π + π − mode in various regions of phase space [49]. The perturbative QCD (PQCD) approach based on the k T factorization theorem [50,51] has been employed in Refs. [52][53][54][55][56], where strong dynamics between two final-state hadrons in resonant regions are factorized into a new nonperturbative input, the two-hadron distribution amplitudes. An advantage of the PQCD factorization approach is that both nonresonant and resonant...

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Quasi-two-body decays B→Kρ→Kππ in perturbative QCD approach

2016

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“…The average of these two results for B → η ′ K 0 S is about 2.2σ from the b → ccs measurement, which is the Standard Model expectation. The decay mode B → K + K − K 0 S , where K + K − combinations consistent with the φ have been removed, is found by Belle to be dominately CP -odd 22 and thus can be treated as a CP -eigenstate and used for studies of time-dependent CP -violation in b → sqq processes. The beam constrained mass distribution for the B → K + K − K 0 S sample used by Belle is shown in Fig.…”

Section: Status Of Cp -Violation In B → Sqqmentioning

confidence: 99%

RESULTS ON THE CKM ANGLE φ₁ (β)

Browder

2004

Lepton and Photon Interactions at High Energies

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“…The isobar model has also been commonly used to analyze the data of three-mesons decays of J=c [11,12], D [13][14][15][16][17][18][19][20][21][22][23], and B [24][25][26][27][28][29][30][31][32][33][34][35] mesons. The B and D decays have been analyzed with interests in the CP violation and physics beyond the standard model.…”

Section: Introductionmentioning

confidence: 99%

Unitary coupled-channels model for three-mesons decays of heavy mesons

et al. 2011

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A unitary coupled-channels model is presented for investigating the decays of heavy mesons and excited meson states into three light pseudoscalar mesons. The model accounts for the three-mesons final state interactions in the decay processes, as required by both the three-body and two-body unitarity conditions. In the absence of the Z-diagram mechanisms that are necessary consequences of the three-body unitarity, our decay amplitudes are reduced to a form similar to those used in the so-called isobar-model analysis. We apply our coupled-channels model to the three-pions decays of a1(1260), pi2(1670), pi2(2100), and D0 mesons, and show that the Z-diagram mechanisms can contribute to the calculated Dalitz plot distributions by as much as 30% in magnitudes in the regions where f0(600), rho(770), and f2(1270) dominate the distributions. Also, by fitting to the same Dalitz plot distributions, we demonstrate that the decay amplitudes obtained with the unitary model and the isobar model can be rather different, particularly in the phase that plays a crucial role in extracting the CKM CP-violating phase from the data of B meson decays. Our results indicate that the commonly used isobar model analysis must be extended to account for the final state interactions required by the three-body unitarity to reanalyze the three-mesons decays of heavy mesons, thereby exploring hybrid or exotic mesons, and signatures of physics beyond the standard model.Comment: 32 pages, 10 figures. Version to appear in PR

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Study of three-body charmlessBdecays

Cited by 77 publications

References 17 publications

Quasi-two-body decays B→Kρ→Kππ in perturbative QCD approach

Quasi-two-body decays B→Kρ→Kππ in perturbative QCD approach

RESULTS ON THE CKM ANGLE φ₁ (β)

Unitary coupled-channels model for three-mesons decays of heavy mesons

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Study of three-body charmlessBdecays

Cited by 77 publications

References 17 publications

Quasi-two-body decays B→Kρ→Kππ in perturbative QCD approach

Quasi-two-body decays B→Kρ→Kππ in perturbative QCD approach

RESULTS ON THE CKM ANGLE φ1 (β)

Unitary coupled-channels model for three-mesons decays of heavy mesons

Contact Info

Product

Resources

About

RESULTS ON THE CKM ANGLE φ₁ (β)