| Production cross sections of hyperons and charmed baryons from e(+)e(-) annihilation near root s=10.52 gev | |
| Niiyama, M.37; Sumihama, M.11; Nakano, T.62; Adachi, I.12,15; Aihara, H.76; Al Said, S.34,71; Asner, D. M.60; Aulchenko, V.3,58; Aushev, T.48; Ayad, R.71 | |
| 刊名 | Physical review d
 |
| 2018-04-09 | |
| 卷号 | 97期号:7页码:21 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.97.072005 |
| 通讯作者 | Niiyama, m.() |
| 英文摘要 | We measure the inclusive production cross sections of hyperons and charmed baryons from e(+)e(-) annihilation using a 800 fb(-1) data sample taken near the gamma(4s) resonance with the belle detector at the kekb asymmetric-energy e(+)e(-) collider. the feed-down contributions from heavy particles are subtracted using our data, and the direct production cross sections are presented for the first time. the production cross sections divided by the number of spin states for s = -1 hyperons follow an exponential function with a single slope parameter except for the sigma(1385)(+) resonance. suppression for sigma(1385)(+) and xi(1530)(0) hyperons is observed. among the production cross sections of charmed baryons, a factor of 3 difference for lambda(+)(c) states over sigma(c) states is observed. this observation suggests a diquark structure for these baryons. |
| WOS关键词 | E+E-ANNIHILATION ; ENERGY REGION ; HEAVY QUARKS ; MASS-ENERGY ; FRAGMENTATION ; MESONS ; STATES ; DECAY ; MODEL |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000429456900003 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2178213 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Niiyama, M. |
| 作者单位 | 1.Univ Basque Country UPV EHU, Bilbao 48080, Spain 2.Beihang Univ, Beijing 100191, Peoples R China 3.Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia 4.Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic 5.Chonnam Natl Univ, Kwangju 660701, South Korea 6.Univ Cincinnati, Cincinnati, OH 45221 USA 7.DESY, D-22607 Hamburg, Germany 8.Univ Florida, Gainesville, FL 32611 USA 9.Fu Jen Catholic Univ, Dept Phys, Taipei 24205, Taiwan 10.Justus Liebig Univ Giessen, D-35392 Giessen, Germany |
| 推荐引用方式 GB/T 7714 | Niiyama, M.,Sumihama, M.,Nakano, T.,et al. Production cross sections of hyperons and charmed baryons from e(+)e(-) annihilation near root s=10.52 gev[J]. Physical review d,2018,97(7):21. |
| APA | Niiyama, M..,Sumihama, M..,Nakano, T..,Adachi, I..,Aihara, H..,...&Zupanc, A..(2018).Production cross sections of hyperons and charmed baryons from e(+)e(-) annihilation near root s=10.52 gev.Physical review d,97(7),21. |
| MLA | Niiyama, M.,et al."Production cross sections of hyperons and charmed baryons from e(+)e(-) annihilation near root s=10.52 gev".Physical review d 97.7(2018):21. |
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