Measurement of the Electroweak Penguin Process<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>X</mml:mi><mml:mi>s</mml:mi></mml:msub><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>

Kaneko, J.; Abe, K.; Abe, T.; Adachi, I.; Ahn, Byoung Sup; Aihara, H.; Akatsu, M.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Ban, Y.; Banaś, E.; Bartel, W.; Bay, A.; Behera, P. K.; Bondar, A.; Bożek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Casey, B. C.K.; Chang, P.; Chào, Y.; Chen, K.-F.; Cheon, B. G.; Chistov, R.; Choi, Y.; Danilov, M.; Liu, Dong; Eidelman, S.; Eiges, V.; Enari, Y.; Everton, C.W.; Fang, F.; Fujii, Hirofumi; Fukunaga, C.; Gabyshev, N.; Garmash, A.; Gershon, T.; Guo, R. S.; Haba, J.; Handa, F.; Hara, T.; Harada, Yasunari; Hastings, N. C.; Hayashii, H.; Hazumi, M.; Heenan, E. M.; Higuchi, I.; Higuchi, T.; Hinz, L.; Hojo, T.; Hoshi, Y.; Hou, W.-S.; Huang, H.-C.; Igaki, T.; Igarashi, Y.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, H.; Iwasaki, M.; Jang, H. K.; Kang, J. H.; Kang, J. S.; 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, S. K.; Kinoshita, K.; Kobayashi, S.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, Suneel; Kwon, Y. J.; Lange, J. S.; Leder, G.; Lee, S. H.; Li, J.; Limosani, A.; Lu, R.-S.; MacNaughton, J.; Majumder, G.; Mandl, F.; Marlow, D.; Matsumoto, Shûji; Matsumoto, T.; Mitaroff, W.; Miyabayashi, K.; Miyabayashi, Y.; Miyake, H.; Moloney, G. R.; Mori, Takashi; Nagamine, T.; Nagasaka, Y.; Nakadaira, T.; Nakano, E.; Nakao, M.; Nam, J. W.; Neichi, K.; Nishida, S.; Nitoh, O.; Noguchi, S.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Pałka, H.; Park, C. W.; Park, H.; Park, K. S.; Perroud, J. P.; Peters, M.; Piilonen, L. E.; Root, N.; Rybicki, K.; Sagawa, H.; Sakai, Y.; Sakamoto, H.; Satapathy, M.; Satpathy, A.; Schneider, O.; Schrenk, S.; Schwanda, C.; Semenov, S.; Senyo, K.; Seuster, R.; Shibuya, H.; Shwartz, B.; Sidorov, V.; Singh, J. B.; Soni, N.; Stanič, S.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, K.; Suzuki, S.; Suzuki, S.; Swain, S. K.; Tajima, H.; Takahashi, T.; Takasaki, F.; Tamai, K.; Tamura, N.; Tanaka, J.; Tanaka, Minoru; Taylor, G. N.; Teramoto, Y.; Tokuda, S.; Tomoto, M.; Tomura, T.; Trabelsi, K.; Trischuk, W.; 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.; Yamashita, Y.; Yamauchi, M.; Yanai, Haruo; Yashima, J.; Yokoyama, M.; Yuan, Y.; Yusa, Y.; Zhang, C. C.; Zhang, J.; Zhang, Z. P.; Zheng, Y.; Zhilich, V.; Žontar, D.

doi:10.1103/physrevlett.90.021801

Cited by 65 publications

(40 citation statements)

References 23 publications

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“…VI. The recent first measurement of BELLE, with a rather large uncertainty (Kaneko et al, 2003), is compatible with this standardmodel prediction.…”

Section: Leads To B(b →S Gluon)ϭ(50ϯ10)ϫ10supporting

confidence: 73%

“…Quite recently, BELLE announced the first measurement of the inclusive B→X s ᐉ ϩ ᐉ Ϫ mode based on a semi-inclusive analysis (Abe et al, 2001b;Kaneko et al, 2003). The hadronic system X s is reconstructed from a kaon with 0 to 4 pions (at most one 0 ).…”

Section: B Photon Spectrum Of B→x S ␥mentioning

confidence: 99%

“…The stringent bounds obtained from that mode on various nonstandard scenarios (see Borzumati et al, 2000;Degrassi et al, 2000;Besmer et al, 2001;Carena et al, 2001) are also a clear example of the importance of theoretically clean FCNC observables in discriminating among new-physics models. In addition, the inclusive B→X s ᐉ ϩ ᐉ Ϫ transition is already accessible at B factories (Kaneko et al, 2003). It represents a new source of theoretically clean observables, complementary to the B→X s ␥ rate.…”

Section: Introductionmentioning

confidence: 99%

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Present status of inclusive rareBdecays

2003

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Most inclusive rare B decays are important modes of flavor physics due to the small hadronic uncertainties. In this article, the author gives a status report on such decays, highlighting recent developments and open problems. The focus is on the decay modes B→X s,d ␥, B→X s ᐉ ϩ ᐉ Ϫ , and B→X s and on their role as laboratories in the search for new physics. The experimental data already available from CLEO and the B factories BABAR and BELLE are collected and discussed. The article then reviews the next-to-leading-log (NLL) and next-to-next-to-leading log (NNLL) QCD calculations of the inclusive decay rates that were recently completed and discusses future prospects, especially the issue of the charm-mass-scheme ambiguity. The phenomenological impact of these decay modes, in particular, on the CKM phenomenology and on the indirect search for supersymmetry, is analyzed. Direct CP violation in inclusive rare B decays is briefly treated, as are the rare kaon decays K ϩ → ϩ and K L → 0 , which offer complementary, theoretically clean information. CONTENTS

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“…VI. The recent first measurement of BELLE, with a rather large uncertainty (Kaneko et al, 2003), is compatible with this standardmodel prediction.…”

Section: Leads To B(b →S Gluon)ϭ(50ϯ10)ϫ10supporting

confidence: 73%

Section: B Photon Spectrum Of B→x S ␥mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Present status of inclusive rareBdecays

2003

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“…In case that no perpendicular shear is generated at V ee1 = -1.8 V, the fluctuation amplitude of the drift-wave instability is observed to increase with increasing the parallel shear strength by changing V ie1 to a negative value from 1.0 V, but the instability is found to be gradually stabilized when the shear strength exceeds the critical value. The destabilizing and stabilizing mechanisms are well explained by a plasma kinetic theory including the effect of radial density gradient [4]. When the perpendicular shear is superimposed on the parallel shear, the drift wave excited by the parallel shear is found to be suppressed by the perpendicular shear independently of the sign of the perpendicular shear.…”

Section: Resultsmentioning

confidence: 83%

“…Then in the late 1990's and very early 2000's, effects of flow velocity shears on plasma instabilities emerged as important issue relating to both space and fusion-oriented plasma physics. Shear-modified collisionless drift waves have been studied in the Q machine of Tohoku University, which possesses three concentrical segmented electron and ion emitters at both ends of the machine [4]. It is found that, generally speaking, the velocity shears of magnetic-field aligned ion flows (parallel shear) and azimuthally rotated plasma flows (perpendicular shear) destabilize and stabilize the collisionless drift waves, respectively.…”

Section: Introductionmentioning

confidence: 99%

Collisionless Drift Waves Ranging from Current‐Driven, Shear‐Modified, and Electron‐Temperature‐Gradient Modes

Hatakeyama

Moon

Tamura

et al. 2010

Contrib. Plasma Phys.

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The specific history of collisionless drift waves is marked by focusing upon current-driven, shear-modified, and electron-temperature-gradient modes. Studies of current-driven collisionless drift waves started in 1977 using the Innsbruck Q machine and was continued over 30 years until 2009 with topics such as plasma heating by drift waves in fusion-oriented confinement and space/astrophysical plasmas. Superposition of perpendicular flow velocity shear on parallel shear intensively modifies the drift wave characteristics through the variation of its azimuthal structure, where the parallel-shear driven instability is suppressed for strong perpendicular shears, while hybrid-ion velocity shear cause unexpected stabilization of the parallel-shear-modified drift wave. An electron temperature gradient can be formed easily by control of thermionic electron superimposed on ECR plasma, and is found to excite low-frequency fluctuation in the range of drift waves.

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Turbulence Dynamics with the Coupling of Density Gradient and Parallel Velocity Gradient in the Edge Plasmas

Kosuga

Itoh

2016

Contrib. Plasma Phys.

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Theory of parallel shear flow driven instability (PSFI) and its impact on turbulence dynamics and transport are presented. The mode is linearly unstable when the parallel flow shear exceeds a critical value. The quasilinear particle flux contains both outward and inward components. Nonlinear dynamics is formulated in terms of hydrodynamic helicity balance. The result implies that once excited, PSFI with helicity may spread from the excited region to stable regions. Implication for turbulence in scrape off layer plasmas is discussed.

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Measurement of the Electroweak Penguin ProcessB→Xsℓ+ℓ−

Cited by 65 publications

References 23 publications

Present status of inclusive rareBdecays

Present status of inclusive rareBdecays

Collisionless Drift Waves Ranging from Current‐Driven, Shear‐Modified, and Electron‐Temperature‐Gradient Modes

Turbulence Dynamics with the Coupling of Density Gradient and Parallel Velocity Gradient in the Edge Plasmas

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