Search for Bs0 → γγ and a measurement of the branching fraction for Bs0 → φγ

被引：21

作者：

Dutta, D. ^{[14
]}

Bhuyan, B. ^{[14
]}

Abdesselam, A. ^{[50
]}

Adachi, I. ^{[9
,12
]}

Aihara, H. ^{[55
]}

Al Said, S. ^{[25
,50
]}

Arinstein, K. ^{[2
,3
]}

Asner, D. M. ^{[43
]}

Aulchenko, V. ^{[2
,3
]}

Aushev, T. ^{[20
,61
]}

Ayad, R. ^{[50
]}

Aziz, T. ^{[51
]}

Bahinipati, S. ^{[62
]}

Bakich, A. M. ^{[49
]}

Bansal, V. ^{[43
]}

Bhardwaj, V. ^{[37
]}

Bobrov, A. ^{[2
,3
]}

Bonvicini, G. ^{[59
]}

Bracko, M. ^{[21
,32
]}

Browder, T. E. ^{[11
]}

Cervenkov, D. ^{[4
]}

Chen, A. ^{[38
]}

Cheon, B. G. ^{[10
]}

Chilikin, K. ^{[20
]}

Chistov, R. ^{[20
]}

Cho, K. ^{[26
]}

Chobanova, V. ^{[33
]}

Choi, Y. ^{[48
]}

Cinabro, D. ^{[59
]}

Dalseno, J. ^{[33
,52
]}

Dolezal, Z. ^{[4
]}

Drasal, Z. ^{[4
]}

Drutskoy, A. ^{[20
,34
]}

Dutta, K. ^{[14
]}

Eidelman, S. ^{[2
,3
]}

Farhat, H. ^{[59
]}

Fast, J. E. ^{[43
]}

Frost, O. ^{[6
]}

Gaur, V. ^{[51
]}

Ganguly, S. ^{[59
]}

Garmash, A. ^{[2
,3
]}

Getzkow, D. ^{[7
]}

Goh, Y. M. ^{[10
]}

Golob, B. ^{[21
,30
]}

Hayashii, H. ^{[37
]}

He, X. H. ^{[44
]}

Hou, W. -S. ^{[40
]}

Iijima, T. ^{[35
,36
]}

Ishikawa, A. ^{[54
]}

Iwasaki, Y. ^{[12
]}

机构：

[1] Univ Basque Country UPV EHU, Bilbao, Spain

[2] RAS, Budker Inst Nucl Phys SB, Novosibirsk 630090, Russia

[3] Novosibirsk State Univ, Novosibirsk 630090, Russia

[4] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic

[5] Univ Cincinnati, Cincinnati, OH 45221 USA

[6] Deutsches Elekt Synchrotron, D-22607 Hamburg, Germany

[7] Univ Giessen, D-35392 Giessen, Germany

[8] Gifu Univ, Gifu 5011193, Japan

[9] Grad Univ Adv Studies, Hayama 2400193, Japan

[10] Hanyang Univ, Seoul 133791, South Korea

[11] Univ Hawaii, Honolulu, HI 96822 USA

[12] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan

[13] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain

[14] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India

[15] Indian Inst Technol, Madras 600036, Tamil Nadu, India

[16] Indiana Univ, Bloomington, IN 47408 USA

[17] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[18] Inst High Energy Phys, Protvino 142281, Russia

[19] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[20] Inst Theoret & Expt Phys, Moscow 117218, Russia

[21] J Stefan Inst, Ljubljana 1000, Slovenia

[22] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan

[23] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany

[24] Kennesaw State Univ, Kennesaw, GA 30144 USA

[25] King Abdulaziz Univ, Fac Sci, Dept Phys, Jeddah 21589, Saudi Arabia

[26] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea

[27] Korea Univ, Seoul 136713, South Korea

[28] Kyungpook Natl Univ, Taegu 702701, South Korea

[29] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

[30] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

[31] Luther Coll, Decorah, IA 52101 USA

[32] Univ Maribor, SLO-2000 Maribor, Slovenia

[33] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[34] Moscow Engn Phys Inst, Moscow 115409, Russia

[35] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan

[36] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan

[37] Nara Womens Univ, Nara 6308506, Japan

[38] Natl Cent Univ, Chungli 32054, Taiwan

[39] Natl United Univ, Miaoli 36003, Taiwan

[40] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[41] Niigata Univ, Niigata 9502181, Japan

[42] Osaka City Univ, Osaka 5588585, Japan

[43] Pacific NW Natl Lab, Richland, WA 99352 USA

[44] Peking Univ, Beijing 100871, Peoples R China

[45] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[46] Univ Sci & Technol China, Hefei 230026, Peoples R China

[47] Soongsil Univ, Seoul 156743, South Korea

[48] Sungkyunkwan Univ, Suwon 440746, South Korea

[49] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[50] Univ Tabuk, Fac Sci, Dept Phys, Tabuk 71451, Saudi Arabia

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 01期

关键词：

QCD CORRECTIONS; DECAYS; NNLO;

D O I：

10.1103/PhysRevD.91.011101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We search for the decay B-s(0) -> gamma gamma and measure the branching fraction for B-s(0) -> phi gamma using 121.4 fb(-1) of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. The B-s(0) -> phi gamma branching fraction is measured to be (3.6 +/- 0.5(stat) +/- 0.3(syst) +/- 0.6(f(s))) x 10(-5), where f(s) is the fraction of B-s(()*())(B) over barB(s)(()*()) in b (b) over bar events. Our result is in good agreement with the theoretical predictions as well as with a recent measurement from LHCb. We observe no statistically significant signal for the decay B-s(0) -> gamma gamma and set a 90% confidence- level upper limit on its branching fraction at 3.1 x 10(-6). This constitutes a significant improvement over the previous result.

引用

页数：6

共 25 条

[1] Measurement of the ratio of branching fractions B(B0 → K*0γ)/B(Bs0 → φγ) and the direct CP asymmetry in B0 → K*0γ
Aaij, R.
Abellan Beteta, C.
Adametz, A.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
Alvarez Cartelle, P.
Alves, A. A., Jr.
Amato, S.
Amhis, Y.
Anderlini, L.
Anderson, J.
Appleby, R. B.
Gutierrez, O. Aquines
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemma, G.
Bachmann, S.
Back, J. J.
Baesso, C.
Balagura, V.
Baldini, W.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Bates, A.
Bauer, C.
Bauer, Th.
Bay, A.
Beddow, J.
Bediaga, I.
Belogurov, S.
Belous, K.
Belyaev, I.
Ben-Haim, E.
Benayoun, M.
Bencivenni, G.
Benson, S.
Benton, J.
Berezhnoy, A.
[J]. NUCLEAR PHYSICS B, 2013, 867 (01) : 1 - 18
[2] The Belle detector
Abashian, A
Abe, K
Abe, R
Abe, K
Adachi, I
Ahn, BS
Ahn, HS
Aihara, H
Akatsu, M
Akhmetshin, R
Alexander, JP
Alimonti, G
An, Q
Aoki, K
Asai, M
Asano, Y
Aso, T
Aulchenko, V
Bakich, AM
Banas, E
Behari, S
Behera, PK
Beiline, D
Bondar, A
Bozek, A
Browder, TE
Casey, BCK
Chang, P
Chang, YH
Chao, Y
Chen, HS
Chen, HF
Chen, YQ
Cheon, BG
Chidzik, S
Choi, S
Choi, Y
Dneprovsky, L
Doi, Y
Dong, LY
Dragic, J
Drutskoy, A
Eidelman, S
Enomoto, R
Everton, CW
Fang, F
Fujii, H
Fujimoto, K
Fujita, Y
Fukunaga, C
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 479 (01) : 117 - 232
[3] SEARCH FOR HADRONIC B-]U DECAYS
ALBRECHT, H
GLASER, R
HARDER, G
KRUGER, A
NILSSON, AW
NIPPE, A
OEST, T
REIDENBACH, M
SCHAFER, M
SCHMIDTPARZEFALL, W
SCHRODER, H
SCHULZ, HD
SEFKOW, F
WURTH, R
APPUHN, RD
DRESCHER, A
HAST, C
HERRERA, G
KOLANOSKI, H
LANGE, A
LINDNER, A
MANKEL, R
SCHECK, H
SCHWEDA, G
SPAAN, B
WALTHER, A
WEGENER, D
PAULINI, M
REIM, K
VOLLAND, U
WEGENER, H
FUNK, W
STIEWE, J
WERNER, S
BALL, S
GABRIEL, JC
GEYER, C
HOLSCHER, A
HOFMANN, W
HOLZER, B
KHAN, S
SPENGLER, J
CHARLESWORTH, CEK
EDWARDS, KW
FRISKEN, WR
KAPITZA, H
KRIEGER, P
KUTSCHKE, R
MACFARLANE, DB
MCLEAN, KW
[J]. PHYSICS LETTERS B, 1990, 241 (02) : 278 - 282
[4] Towards B → Vγ decays at NNLO in SCET
Ali, A.
Pecjak, B. D.
Greub, C.
[J]. EUROPEAN PHYSICAL JOURNAL C, 2008, 55 (04): : 577 - 595
[5] Ali A, 2002, EUR PHYS J C, V23, P89, DOI 10.1007/s100520100856
[6] [Anonymous], ARXIV12071158 HEAV F
[7] B→Vγ beyond QCD factorization
Ball, Patricia
Jones, Gareth W.
Zwicky, Roman
[J]. PHYSICAL REVIEW D, 2007, 75 (05):
[8] Bosch SW, 2002, J HIGH ENERGY PHYS
[9] Physics achievements from the Belle experiment
Brodzicka, Jolanta
Browder, Thomas
Chang, Paoti
Eidelman, Simon
Golob, Bostjan
Hayasaka, Kiyoshi
Hayashii, Hisaki
Iijima, Toru
Inami, Kenji
Kinoshita, Kay
Kwon, Youngjoon
Miyabayashi, Kenkichi
Mohanty, Gagan
Nakao, Mikihiko
Nakazawa, Hideyuki
Olsen, Stephen
Sakai, Yoshihide
Schwanda, Christoph
Schwartz, Alan
Trabelsi, Karim
Uehara, Sadaharu
Uno, Shoji
Watanabe, Yasushi
Zupanc, Anze
[J]. PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2012, 2012 (01):
[10] Brun R., 1984, Report No. CERN DD/EE/84-1

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