MEASUREMENTS OF CROSS-SECTION AND ASYMMETRY FOR E(+)E(-)-]B(B)OVER-BAR AND HEAVY-QUARK FRAGMENTATION AT KEK-TRISTAN
文献类型：期刊论文
| 作者 | LIU, F; CHINITZ, LM; ABE, K; BREEDON, RE; FUJII, Y; KURIHARA, Y; MAKI, A; NOZAKI, T; OMORI, T; SAGAWA, H |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 1994 |
| 卷号 | 49期号:9页码:4339-4347 |
| 通讯作者 | INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA ; SSC LAB,DALLAS,TX 75237 ; KONAN UNIV,KOBE 658,JAPAN ; NIHON DENT COLL,NIIGATA 951,JAPAN ; KOREA UNIV,SEOUL 136701,SOUTH KOREA ; SEOUL NATL UNIV,SEOUL 151742,SOUTH KOREA ; KYUNGPOOK NATL UNIV,TAEGU 702701,SOUTH KOREA ; CHUO UNIV,TOKYO 112,JAPAN ; LOUISIANA STATE UNIV,BATON ROUGE,LA 70803 ; VIRGINIA POLYTECH INST & STATE UNIV,BLACKSBURG,VA 24061 ; UNIV S CAROLINA,COLUMBIA,SC 29208 ; UNIV CALIF DAVIS,DAVIS,CA 95616 ; UNIV HAWAII,HONOLULU,HI 96822 ; UNIV MINNESOTA,MINNEAPOLIS,MN 55455 ; NIIGATA UNIV,NIIGATA 95021,JAPAN ; RUTGERS STATE UNIV,PISCATAWAY,NJ 08854 ; UNIV ROCHESTER,ROCHESTER,NY 14627 ; SAGA UNIV,SAGA 840,JAPAN ; SAITAMA UNIV,URAWA,SAITAMA 338,JAPAN |
| 英文摘要 | Using 773 muons found in hadronic events from 142 pb-1 of data at a c.m. energy of 57.8 GeV, we extract the cross section and forward-backward charge asymmetry for the e+e- --> bbBAR process, and the heavy quark fragmentation function parameters for the Peterson model. For the analysis of the e+e- --> bbBAR process, we use a method in which the behavior of the c quark and lighter quarks is assumed, with only that of the b quark left indeterminate. The cross section and asymmetry for e+e- --> bbBAR are found to be R(b) = 0.57 +/- 0.06(stat) +/- 0.08(syst) and A(b) = -0.59 +/- 0.09 +/- 0.09, respectively. They are consistent with the standard model predictions. For the study of the fragmentation function we use the variable [x(e)], the fraction of the beam energy carried by the heavy hadrons. We obtain [x(E)]c = 0.56(-0.05-0.03)+0.04+0.03 and [x(E)]b = 0.65(-0.04-0.06)+0.06+0.05, respectively. These are in good agreement with previously measured values. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1994NK06500006 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239975]  |
| 专题 | 高能物理研究所_计算中心 中国科学院高能物理研究所_中国散裂中子源 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | LIU, F,CHINITZ, LM,ABE, K,et al. MEASUREMENTS OF CROSS-SECTION AND ASYMMETRY FOR E(+)E(-)-]B(B)OVER-BAR AND HEAVY-QUARK FRAGMENTATION AT KEK-TRISTAN[J]. PHYSICAL REVIEW D,1994,49(9):4339-4347. |
| APA | LIU, F.,CHINITZ, LM.,ABE, K.,BREEDON, RE.,FUJII, Y.,...&ISHIZUKA, T.(1994).MEASUREMENTS OF CROSS-SECTION AND ASYMMETRY FOR E(+)E(-)-]B(B)OVER-BAR AND HEAVY-QUARK FRAGMENTATION AT KEK-TRISTAN.PHYSICAL REVIEW D,49(9),4339-4347. |
| MLA | LIU, F,et al."MEASUREMENTS OF CROSS-SECTION AND ASYMMETRY FOR E(+)E(-)-]B(B)OVER-BAR AND HEAVY-QUARK FRAGMENTATION AT KEK-TRISTAN".PHYSICAL REVIEW D 49.9(1994):4339-4347. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。