10 results on '"James Fast"'
Search Results
2. Basic Research Needs for High Energy Physics Detector Research & Development: Report of the Office of Science Workshop on Basic Research Needs for HEP Detector Research and Development: December 11-14, 2019
- Author
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Bonnie Fleming, Ian Shipsey, Marcel Demarteau, James Fast, Sunil Golwala, Young-Kee Kim, Abraham Seiden, James Hirschauer, Gabriella Sciolla, Ornella Palamara, Kate Scholberg, Jodi Cooley, Dan McKinsey, Clarence Chang, Brenna Flaugher, Sarah Demers, Monica Pepe-Altarelli, Francesco Lanni, Roger Rusack, Roxanne Guenette, Jocelyn Monroe, Lindley Winslow, Peter Krizan, Andrew Geraci, Kent Irwin, Gabriella Carini, Mitch Newcomer, Marina Artuso, Carl Haber, Darin Acosta, Tulika Bose, Michael Begel, Meenakshi Narain, Daniel Dwyer, Amy Connolly, Andrew Sonnenschein, Reyco Henning, Kyle Dawson, Laura Newburgh, Matthew Reece, Nicola Serra, Nural Akchurin, Sarah Eno, Paolo Rumerio, Renyuan Zhu, Jennifer Raaf, Andrea Pocar, Jonathan Asaadi, Hugh Lippincott, Graham Giovanetti, Adriana Lita, Felix Sefkow, Gretchen Campbell, Alexander Sushkov, Ronald Walsworth, Anna Grassellino, Angelo Dragone, Maurice Garcia-Sciveres, Terri Shaw, Julia Thom-Levy, Alessandro Tricoli, Petra Merkel, Wesley Ketchum, Jinlong Zhang, Paul O'Connor, Georgia Karagiorgi, Christie Ashton, Lali Chaterjee, Peter Lee, Donald Hornback, Helmut Marsiske, Michelle Shinn, Karen Byrum, Glen Crawford, Elaine Lessner, Donna Nevels, Gulshan Rai, Kathy Turner, and Randall Ruchti
- Published
- 2019
3. Design of a thermosiphon for cooling low-background HPGe arrays
- Author
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E. Aguayo, James Fast, and Doug James Reid
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Engineering ,Operating temperature ,business.industry ,Nuclear engineering ,Detector ,Electromagnetic shielding ,Active cooling ,Electrical engineering ,Water cooling ,Thermosiphon ,business ,Particle detector ,Semiconductor detector - Abstract
A two-phase nitrogen thermosiphon was developed for the new generation of low-background high-purity germanium (HPGe) arrays. The cooling system for these arrays has to be able to handle the heat load (>20 W) presented by a large detector mass while meeting stringent requirements necessary for low-background systems. The HPGe detector modules should operate as close to liquid nitrogen temperature (
- Published
- 2012
4. Displacements and stress distribution in D0 Run IIb stave due to CTE mismatches
- Author
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Giobatta Lanfranco, James Fast, and null /Fermilab
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Temperature gradient ,Thermal compatibility ,Materials science ,Silicon ,chemistry ,Compatibility (mechanics) ,chemistry.chemical_element ,Mechanics ,Composite material ,Stress distribution ,Finite element method ,Thermal expansion ,Stiffening - Abstract
A possible D0 Run IIb stave design currently under study is characterized by an outer carbon fiber stiffening shell with the silicon detectors mounted internally and a single central cooling line running between them; in this paper the stave will be analyzed for thermal compatibility since the different coefficient of thermal expansion in the materials may cause unpredictable stresses and strains in the structure. A simplified stave section has been modeled with finite elements for different materials configurations and the vertical and longitudinal displacements induced by the thermal gradient, together with the related stresses, have been computed. Finally, once selected the most suitable material combination, a more realistic model has been created in order to study the influence of the hybrid location along the ladders.
- Published
- 2001
5. Displacements and stress distribution in D0 Run IIb stave due to CTE mismatches
- Author
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Giobatta Lanfranfo and James Fast
- Published
- 2001
6. Mechanical properties of D0 Run IIB silicon detector staves
- Author
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James Fast and Giobatta Lanfranco
- Subjects
Materials science ,Silicon ,chemistry ,Deflection (engineering) ,Composite number ,Electronic engineering ,chemistry.chemical_element ,Silicon detector ,Composite material - Abstract
A proposed stave design for the D0 Run IIb silicon tracker outer layers featuring central cooling channels and a composite shell mechanical structure is evaluated for self-deflection and deflection due to external loads. This paper contains an introduction to the stave structure, a section devoted to composite lamina and laminate properties and finally a section discussing the beam deflections expected for assembled staves using these laminates.
- Published
- 2001
7. Thermal properties of D0 Run IIb silicon detector staves
- Author
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James Fast and Giobatta Lanfranco
- Subjects
Materials science ,Silicon ,business.industry ,chemistry.chemical_element ,Noise (electronics) ,Coolant ,Heat flux ,chemistry ,Thermal ,Heat transfer ,Electronic engineering ,Water cooling ,Optoelectronics ,Electronics ,business - Abstract
A proposed stave design for the D0 Run IIb silicon tracker outer layers featuring central cooling channels and hybrid substrates mounted directly to the silicon sensor surfaces is evaluated for heat transfer characteristics and thermal deflections. In order to control leakage current noise in the silicon it is necessary to maintain the silicon in Layer 2 (R {approx} 100mm) at or below +5C. The current cooling system using 30% ethylene glycol in water can deliver coolant to the inlet of the silicon tracker at a temperature of -8C to -10C. This paper also investigates some alternative coolant options for Run IIB. While these are not required for the outer layers of silicon, they may be needed for L0, which sits at R {approx} 15mm. In this case the silicon must be kept at or below -5C, very near the lower limit for delivery of 30% glycol/water coolant. However, for the inner layers the electronics will be mounted independently from the silicon so the local heat flux is greatly reduced. This paper does not consider the cooling issues for the inner layers.
- Published
- 2001
8. RARE B DECAYS
- Author
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James Fast
- Subjects
Physics ,Particle physics - Published
- 2000
9. Measurement of the inclusive $B\to X_{s+d} \gamma$ branching fraction, photon energy spectrum and HQE parameters
- Author
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Abdesselam, A., Adachi, I., Adamczyk, K., Aihara, H., Said, S. Al, Arinstein, K., Arita, Y., Asner, D. M., Aso, T., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bala, A., Ban, Y., Vikas Bansal, Barberio, E., Barrett, M., Bartel, W., Bay, A., Bedny, I., Behera, P., Belhorn, M., Belous, K., Berger, M., Besson, D., Bhardwaj, V., Bhuyan, B., Biswal, J., Bloomfield, T., Blyth, S., Bobrov, A., Bondar, A., Bonvicini, G., Bookwalter, C., Boulahouache, C., Bozek, A., Bracko, M., Breibeck, F., Brodzicka, J., Browder, T. E., Waheed, E., Cervenkov, D., Chang, M. C., PAO-TI CHANG, Chao, Y., Chekelian, V., Chen, A., Chen, K. F., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Kihyeon Cho, Chobanova, V., Choi, S. K., Choi, Y., Cinabro, D., Crnkovic, J., Dalseno, J., Danilov, M., Dash, N., Di Carlo, S., Dingfelder, J., Dolezal, Z., Dossett, D., Drasal, Z., Drutskoy, A., Dubey, S., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., James Fast, Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B. G., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Getzkow, D., Gillard, R., Giordano, F., Glattauer, R., Goh, Y. M., Goldenzweig, P., Bostjan Golob, Greenwald, D., Grosse Perdekamp, M., Grygier, J., Grzymkowska, O., Guo, H., Haba, J., Hamer, P., Han, Y. L., Hara, K., Hara, T., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Hedges, M. T., Heffernan, D., Heider, M., Heller, A., Higuchi, T., Himori, S., Hirose, S., Horiguchi, T., Hoshi, Y., Hoshina, K., Hou, W. S., YEE HSIUNG, Hsu, C. L., Huschle, M., Hyun, H. J., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Gianluca Inguglia, Ishikawa, A., Itagaki, K., Itoh, R., Iwabuchi, M., Masako Iwasaki, Iwasaki, Y., Iwata, S., Jacobs, W. W., Igal Jaegle, Jeon, H. B., Jin, Y., Joffe, D., Jones, M., Joo, K. K., Julius, T., Hidekazu Kakuno, Kaliyar, A. B., Kang, J. H., Kang, K. H., Kapusta, P., Kataoka, S. U., Kato, E., Kato, Y., Katrenko, P., Kawai, H., Takeo Kawasaki, Keck, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Min Jeong Kim, Kim, S. H., Kim, S. K., Kim, Y. J., Kinoshita, K., Kleinwort, C., Klucar, J., Byeong Rok Ko, Kobayashi, N., Koblitz, S., Kodys, P., Koga, Y., Korpar, S., Kotchetkov, D., Kouzes, R. T., Peter Križan, Krokovny, P., Kronenbitter, B., Thomas Kuhr, Kulasiri, L., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasnicka, P., Kwon, Y. J., Lai, Y. T., Lange, J. S., Lee, D. H., Lee, I. S., Lee, S. H., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C. H., Jin Li, Li, L., Li, X., Li, Y., Li Gioi, L., James Libby, Limosani, A., Liu, C., Liu, Y., Liu Zhiqing Liu, Z. Q., Liventsev, D., Loos, A., Louvot, R., Lubej, M., Peter Lukin, Luo, T., Macnaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Matyja, A., Mconie, S., Mikami, Y., Kenkichi Miyabayashi, Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohanty, S., Mohapatra, D., Moll, A., Moon, H. K., Mori, T., Morii, T., Moser, H. G., Muller, T., Muramatsu, N., Roberto Mussa, Nagamine, T., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K. R., Nakano, E., Nakano, H., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nedelkovska, E., Negishi, K., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N. K., Shohei Nishida, Kurtis Nishimura, Nitoh, O., Nozaki, T., Ogawa, A., Ogawa, S., Ohshima, T., Okuno, S., Stephen Olsen, Ono, Y., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Bilas Pal, Palka, H., Panzenbock, E., Park, C. S., Park, C. W., Park, H., Park, K. S., Stephan Paul, Peak, L. S., Todd Pedlar, Peng, T., Pesantez, L., Pestotnik, R., Peters, M., Petric, M., Leo Piilonen, Poluektov, A., Prasanth, K., Prim, M., Prothmann, K., Pulvermacher, C., Purohit, M. V., Rauch, J., Reisert, B., Ribezl, E., Martin Ritter, Rorie, J., Rostomyan, A., Rozanska, M., Rummel, S., Ryu, S., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Yutaro Sato, Savinov, V., Tobias Schlüter, Olivier Schneider, Gunar Schnell, Schonmeier, P., Schram, M., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I. S., Martin Sevior, Shang, L., Shapkin, M., Shebalin, V., Chengping Shen, Shibata, T. A., Shibuya, H., Shimizu, N., Shinomiya, S., Jing-Ge Shiu, Shwartz, B., Alexei Sibidanov, Frank Simon, Singh, J. B., Rahul Sinha, Smerkol, P., Sohn, Y. S., Sokolov, A., Soloviev, Y., Elena Solovieva, Stanic, S., Staric, M., Steder, M., Strube, J. F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Z., Takeichi, H., Takizawa, M., umberto tamponi, Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., GEOFFREY TAYLOR, Tenchini, F., Teramoto, Y., Tikhomirov, I., Karim Trabelsi, Trusov, V., Tse, Y. F., Tsuboyama, T., Uchida, M., Uchida, T., Uehara, S., Ueno, K., Timofey Uglov, Unno, Y., Uno, S., Uozumi, S., PHILLIP URQUIJO, Ushiroda, Y., Usov, Y., Vahsen, S. E., Hulse, C., Vanhoefer, P., Varner, G., Kevin Varvell, Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, J., MIN-ZU WANG, Ping Wang, Wang, X. L., Watanabe, M., Watanabe, Y., Wedd, R., Wehle, S., White, E., Widmann, E., Wiechczynski, J., Kimberly Williams, Eunil Won, Yabsley, B. D., Yamada, S., Yamamoto, H., Jared Yamaoka, Yamashita, Y., Yamauchi, M., Yashchenko, S., Ye, H., Yelton, J., Yook, Y., Chang-Zheng Yuan, Yusa, Y., Zhang, C. C., Zhang, L. M., Ziping Zhang, Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Ziegler, M., Zivko, T., Zupanc, A., Zwahlen, N., and Zyukova, O.
10. Search for $B^+ \to e^+ \nu$ and $B^+ \to \mu^+ \nu$ decays using hadronic tagging
- Author
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Yook, Y., Kwon, Y. J., Abdesselam, A., Adachi, I., Said, S. Al, Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bahinipati, S., Bakich, A. M., Bala, A., Vikas Bansal, Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Cervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Kihyeon Cho, Chobanova, V., Choi, Y., Dolezal, Z., Drasal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Farhat, H., James Fast, Ferber, T., Frost, O., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Bostjan Golob, Grzymkowska, O., Haba, J., Hara, K., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W. S., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Igal Jaegle, Julius, T., Kato, E., Katrenko, P., Takeo Kawasaki, Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Min Jeong Kim, Kim, Y. J., Kinoshita, K., Klucar, J., Byeong Rok Ko, Kodys, P., Korpar, S., Peter Križan, Krokovny, P., Thomas Kuhr, Kuzmin, A., Lange, J. S., Li, Y., Li Gioi, L., Liu, C., Liu, Y., Liventsev, D., Peter Lukin, Kenkichi Miyabayashi, Miyata, H., Mohanty, G. B., Moll, A., Roberto Mussa, Nagasaka, Y., Nakamura, I., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Shohei Nishida, Nitoh, O., Ogawa, S., Okuno, S., Pakhlov, P., Park, C. S., Park, H., Park, H. K., Todd Pedlar, Pestotnik, R., Petric, M., Leo Piilonen, Martin Ritter, Rohrken, M., Rostomyan, A., Ryu, S., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Yutaro Sato, Savinov, V., Olivier Schneider, Gunar Schnell, Schwanda, C., Senyo, K., Seon, O., Martin Sevior, Shebalin, V., Chengping Shen, Shibata, T. A., Jing-Ge Shiu, Shwartz, B., Alexei Sibidanov, Frank Simon, Sohn, Y. S., Sokolov, A., Solovieva, E., Staric, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Karim Trabelsi, Uchida, M., Timofey Uglov, PHILLIP URQUIJO, Usov, Y., Hulse, C., Vanhoefer, P., Varner, G., Kevin Varvell, Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., MIN-ZU WANG, Ping Wang, Wang, X. L., Watanabe, M., Watanabe, Y., Wehle, S., Kimberly Williams, Eunil Won, Yamashita, Y., Yashchenko, S., Yusa, Y., Ziping Zhang, Zhilich, V., and Zupanc, A.
- Subjects
High Energy Physics::Phenomenology ,High Energy Physics::Experiment ,High Energy Physics - Experiment - Abstract
We present a search for the rare leptonic decays $B^+ \to e^+ \nu_e$ and $B^+ \to \mu^+ \nu_\mu$, using the full $\Upsilon(4S)$ data sample of $772\times 10^6$ $B\bar{B}$ pairs collected with the Belle detector at the $\rm {\small KEKB}$ asymmetric-energy $e^+ e^-$ collider. One of the $B$ mesons from the $\Upsilon(4S) \to B\bar{B}$ decay is fully reconstructed in a hadronic mode, while the recoiling side is analyzed for the signal decay. We find no evidence of a signal in any of the decay modes. Upper limits of the corresponding branching fractions are determined as ${\cal B}(B^+ \to e^+ \nu_e), Comment: This paper (1503.01255) has been withdrawn by the author as this article was submitted by mistake and is completely identical to arXiv:1406.6356v3, the document, which was intended to be submitted
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