학술논문

Measurement of $CP$ asymmetry in the $D^{0} \to K^0_S K^0_S$ decay at Belle
Document Type
Working Paper
Author
Abdesselam, A.Adachi, I.Adamczyk, K.Aihara, H.Said, S. AlArinstein, 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.Bansal, V.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.Bračko, M.Breibeck, F.Brodzicka, J.Browder, T. E.Waheed, E.Červenkov, D.Chang, M. -C.Chang, P.Chao, Y.Chekelian, V.Chen, A.Chen, K. -F.Chen, P.Cheon, B. G.Chilikin, K.Chistov, R.Cho, K.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Crnkovic, J.Dalseno, J.Danilov, M.Dash, N.Di Carlo, S.Dingfelder, J.Doležal, Z.Dossett, D.Drásal, Z.Drutskoy, A.Dubey, S.Dutta, D.Dutta, K.Eidelman, S.Epifanov, D.Esen, S.Farhat, H.Fast, J. E.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.Golob, B.Greenwald, D.Perdekamp, M. GrosseGrygier, 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.Hsiung, Y. B.Hsu, C. -L.Huschle, M.Hyun, H. J.Igarashi, Y.Iijima, T.Imamura, M.Inami, K.Inguglia, G.Ishikawa, A.Itagaki, K.Itoh, R.Iwabuchi, M.Iwasaki, M.Iwasaki, Y.Iwata, S.Jacobs, W. W.Jaegle, I.Jeon, H. B.Jin, Y.Joffe, D.Jones, M.Joo, K. K.Julius, T.Kakuno, H.Kaliyar, A. B.Kang, J. H.Kang, K. H.Kapusta, P.Kataoka, S. U.Kato, E.Kato, Y.Katrenko, P.Kawai, H.Kawasaki, T.Keck, T.Kichimi, H.Kiesling, C.Kim, B. H.Kim, D. Y.Kim, H. J.Kim, H. -J.Kim, J. B.Kim, J. H.Kim, K. T.Kim, M. J.Kim, S. H.Kim, S. K.Kim, Y. J.Kinoshita, K.Kleinwort, C.Klucar, J.Ko, B. R.Kobayashi, N.Koblitz, S.Kodyš, P.Koga, Y.Korpar, S.Kotchetkov, D.Kouzes, R. T.Križan, P.Krokovny, P.Kronenbitter, B.Kuhr, T.Kulasiri, R.Kumar, R.Kumita, T.Kurihara, E.Kuroki, Y.Kuzmin, A.Kvasnička, 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.Li, H.Li, J.Li, L.Li, X.Li, Y.Gioi, L. LiLibby, J.Limosani, A.Liu, C.Liu, Y.Liu, Z. Q.Liventsev, D.Loos, A.Louvot, R.Lubej, M.Lukin, P.Luo, T.MacNaughton, J.Masuda, M.Matsuda, T.Matvienko, D.Matyja, A.McOnie, S.Mikami, Y.Miyabayashi, K.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.Müller, T.Muramatsu, N.Mussa, R.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.Nishida, S.Nishimura, K.Nitoh, O.Nozaki, T.Ogawa, A.Ogawa, S.Ohshima, T.Okuno, S.Olsen, S. L.Ono, Y.Onuki, Y.Ostrowicz, W.Oswald, C.Ozaki, H.Pakhlov, P.Pakhlova, G.Pal, B.Palka, H.Panzenböck, E.Park, C. -S.Park, C. W.Park, H.Park, K. S.Paul, S.Peak, L. S.Pedlar, T. K.Peng, T.Pesántez, L.Pestotnik, R.Peters, M.Petrič, M.Piilonen, L. E.Poluektov, A.Prasanth, K.Prim, M.Prothmann, K.Pulvermacher, C.Purohit, M. V.Rauch, J.Reisert, B.Ribežl, E.Ritter, M.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.Sato, Y.Savinov, V.Schlüter, T.Schneider, O.Schnell, G.Schönmeier, P.Schram, M.Schwanda, C.Schwartz, A. J.Schwenker, B.Seidl, R.Seino, Y.Semmler, D.Senyo, K.Seon, O.Seong, I. S.Sevior, M. E.Shang, L.Shapkin, M.Shebalin, V.Shen, C. P.Shibata, T. -A.Shibuya, H.Shimizu, N.Shinomiya, S.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Singh, J. B.Sinha, R.Smerkol, P.Sohn, Y. -S.Sokolov, A.Soloviev, Y.Solovieva, E.Stanič, S.Starič, 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.Tamponi, U.Tanaka, M.Tanaka, S.Tanida, K.Taniguchi, N.Taylor, G. N.Tenchini, F.Teramoto, Y.Tikhomirov, I.Trabelsi, K.Trusov, V.Tse, Y. F.Tsuboyama, T.Uchida, M.Uchida, T.Uehara, S.Ueno, K.Uglov, T.Unno, Y.Uno, S.Uozumi, S.Urquijo, P.Ushiroda, Y.Usov, Y.Vahsen, S. E.Van Hulse, C.Vanhoefer, P.Varner, G.Varvell, K. E.Vervink, K.Vinokurova, A.Vorobyev, V.Vossen, A.Wagner, M. N.Wang, C. H.Wang, J.Wang, M. -Z.Wang, P.Wang, X. L.Watanabe, M.Watanabe, Y.Wedd, R.Wehle, S.White, E.Widmann, E.Wiechczynski, J.Williams, K. M.Won, E.Yabsley, B. D.Yamada, S.Yamamoto, H.Yamaoka, J.Yamashita, Y.Yamauchi, M.Yashchenko, S.Ye, H.Yelton, J.Yook, Y.Yuan, C. Z.Yusa, Y.Zhang, C. C.Zhang, L. M.Zhang, Z. P.Zhao, L.Zhilich, V.Zhukova, V.Zhulanov, V.Ziegler, M.Zivko, T.Zupanc, A.Zwahlen, N.Zyukova, O.
Source
Subject
High Energy Physics - Experiment
Language
Abstract
We report a measurement of the time-integrated $CP$ asymmetry in the neutral charm meson decay $D^0 \to K^0_S K^0_S$ using 921~fb$^{-1}$ data collected at the $\Upsilon(4S)$ and $\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The observed asymmetry is $$ A_{CP}(D^0 \to K^0_S K^0_S) = (-0.02 \pm 1.53 \pm 0.17) \%, $$ where the first uncertainty is statistical and the second systematic. This latter uncertainty is dominated by the error of the normalisation channel. The result is consistent with Standard Model expectations and improves the uncertainty with respect to previous measurement of this quantity by more than a factor of three.
Comment: 12 pages, 2 figures, ICHEP 2016