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1.
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The SuperKEKB Has Broken the World Record of the Luminosity
/ Funakoshi, Yoshihiro (KEK, Tsukuba) ; Abe, Tetsuo (KEK, Tsukuba) ; Akai, Kazunori (KEK, Tsukuba) ; Arimoto, Yasushi (KEK, Tsukuba) ; Egawa, Kazumi (KEK, Tsukuba) ; Enomoto, Shun (KEK, Tsukuba) ; Fukuma, Hitoshi (KEK, Tsukuba) ; Furukawa, Kazuro (KEK, Tsukuba) ; Iida, Naoko (KEK, Tsukuba) ; Ikeda, Hitomi (KEK, Tsukuba) et al.
The SuperKEKB broke the world record of the luminosity in June 2020 in the Phase 3 operation. The luminosity has been increasing since then and the present highest luminosity is 4.65 x 10³⁴ cm⁻²s⁻¹ with β_{y}^{*} of 1 mm. [...]
2022 - 5 p.
- Published in : JACoW IPAC 2022 (2022) 1-5
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1-5
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2.
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Vibration and luminosity frequency analysis of the SuperKEKB collider
/ Serluca, Maurizio (Annecy, LAPP) ; Balik, Gael (Annecy, LAPP) ; Brunetti, Laurent (Annecy, LAPP) ; Aimard, Benjamin (Annecy, LAPP) ; Dominjon, Agnes (Annecy, LAPP) ; Bambade, Philip (IJCLab, Orsay) ; Wallon, Sandry (IJCLab, Orsay) ; Di Carlo, Salvatore (CERN) ; Masuzawa, Mika (KEK, Tsukuba) ; Uehara, Sadaharu (KEK, Tsukuba)
The SuperKEKB collider has entered the physics production phase with the aim to reach its target luminosity of 6×1035 cm−2s−1. Vibrations of the accelerator elements, especially around the Interaction Point (IP), could limit the performance of the collider. [...]
2022 - 9 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1025 (2022) 166123
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3.
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Early Commissioning of the Luminosity Dither Feedback for SuperKEKB
/ Masuzawa, Mika (KEK, Tsukuba) ; Bambade, Philip (Orsay, LAL) ; Brown, David (SLAC) ; Di Carlo, Salvatore (Orsay, LAL) ; El Khechen, Dima (CERN) ; Fisher, Alan (SLAC) ; Funakoshi, Yoshihiro (KEK, Tsukuba) ; Jehanno, Didier (Orsay, LAL) ; Kawamoto, Takashi (KEK, Tsukuba) ; Nakamura, Shu (KEK, Tsukuba) et al.
SuperKEKB is an electron–positron double ring collider that aims to achieve a peak luminosity of 8 x 10$^{35}$ cm$^{-2}$ s$^{-1}$ by using what is known as the “nano-beam” scheme. A luminosity dither system is employed for collision orbit feedback in the horizontal plane. [...]
JACoW, 2019 - 4 p.
- Published in : 10.18429/JACoW-IBIC2018-TUPC13
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.TUPC13
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4.
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Early Commissioning of the Luminosity Dither System for SuperKEKB
/ Funakoshi, Yoshihiro (KEK, Tsukuba) ; Bambade, Philip (Orsay, LAL) ; Brown, David (SLAC) ; Di Carlo, Salvatore (Orsay, LAL) ; El Khechen, Dima (CERN) ; Fisher, Alan (SLAC) ; Jehanno, Didier (Orsay, LAL) ; Kawamoto, Takashi (KEK, Tsukuba) ; Masuzawa, Mika (KEK, Tsukuba) ; Nakamura, Shu (KEK, Tsukuba) et al.
SuperKEKB is an electron-positron double ring collider at KEK which aims at a peak luminosity of 8 x 10³⁵ cm⁻²s⁻¹ by using what is known as the ’nano-beam’ scheme. A luminosity dither system is employed for collision orbit feedback in the horizontal plane. [...]
JACOW, 2019 - 5 p.
- Published in : 10.18429/JACoW-eeFACT2018-WEXBA04
Published fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.WEXBA04
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5.
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Linear and second order optics corrections for the KEK Accelerator Test Facility final focus beam line
/ Okugi, T (KEK, Tsukuba) ; Araki, S (KEK, Tsukuba) ; Bambade, P (Orsay, LAL) ; Kubo, K (KEK, Tsukuba) ; Kurado, S (KEK, Tsukuba) ; Masuzawa, M (KEK, Tsukuba) ; Marin, E (SLAC) ; Naito, T (KEK, Tsukuba) ; Tauchi, T (KEK, Tsukuba) ; Terunuma, N (KEK, Tsukuba) et al.
In this paper, the linear and second order optics corrections for the KEK Accelerator Test Facility (ATF2) final focus beam line are described. The beam optics of the ATF2 beam line is designed based on a local chromaticity correction scheme similar to the ILC final focus system. [...]
2014 - 11 p.
- Published in : Phys. Rev. Spec. Top. Accel. Beams 17 (2014) 023501
APS Open Access article: PDF;
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6.
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Experimental Validation of a Novel Compact Focusing Scheme for Future Energy-Frontier Linear Lepton Colliders
/ White, G R (SLAC) ; Ainsworth, R (Oxford U., JAI) ; Akagi, T (Hiroshima U.) ; Alabau-Gonzalvo, J (CERN) ; Angal-Kalinin, D (Daresbury) ; Araki, S (KEK, Tsukuba) ; Aryshev, A (KEK, Tsukuba) ; Bai, S (Beijing, Inst. High Energy Phys.) ; Bambade, P (Orsay, LAL) ; Bett, D R (Oxford U., JAI) et al.
/ATF2
A novel scheme for the focusing of high-energy leptons in future linear colliders was proposed in 2001 [ P. Raimondi and A. [...]
2014 - 6 p.
- Published in : Phys. Rev. Lett. 112 (2014) 034802
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7.
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Achievements of KEKB
/ Abe, Tetsuo (KEK, Tsukuba) ; Akai, Kazunori (KEK, Tsukuba) ; Akasaka, Norimasa (KEK, Tsukuba) ; Akemoto, Mitsuo (KEK, Tsukuba) ; Akiyama, Atsuyoshi (KEK, Tsukuba) ; Arinaga, Mitsuhiro (KEK, Tsukuba) ; Cai, Yunhai (SLAC) ; Ebihara, Kiyokazu (KEK, Tsukuba) ; Egawa, Kazumi (KEK, Tsukuba) ; Enomoto, Atsushi (KEK, Tsukuba) et al.
The machine commissioning of KEKB started in December 1998 and its operation was terminated at the end of June 2010 to upgrade KEKB to SuperKEKB. In this paper, we summarize the history of KEKB and show the achievements made there..
2013
- Published in : Prog. Theor. Exp. Phys. 2013 (2013) 03A001
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8.
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Study of vertical beam blowup in KEKB low energy ring
/ Fukuma, H (KEK, Tsukuba) ; Akai, K (KEK, Tsukuba) ; Akasaka, N (KEK, Tsukuba) ; Enomoto, A (KEK, Tsukuba) ; Flanagan, J W (KEK, Tsukuba) ; Funakoshi, Y (KEK, Tsukuba) ; Furukawa, K (KEK, Tsukuba) ; Hiramatsu, S (KEK, Tsukuba) ; Hosoyama, K (KEK, Tsukuba) ; Ieiri, T (KEK, Tsukuba) et al.
2001
Published version: PDF;
In : 18th International Conference on High-energy Accelerators, Tsukuba, Japan, 26 - 30 Mar 2001, pp.P1hlf10
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9.
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10.
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Belle II Technical Design Report
/ Abe, T ; Adachi, I ; Adamczyk, K ; Ahn, S ; Aihara, H ; Akai, K ; Aloi, M ; Andricek, L ; Aoki, K ; Arai, Y et al.
The Belle detector at the KEKB electron-positron collider has collected almost 1 billion Y(4S) events in its decade of operation. [...]
arXiv:1011.0352 ; KEK REPORT 2010-1.
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2010.
Preprint
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