• help
  • PC | SP
  • JP | EN
          
検索対象：     
報告書番号：
※ 半角英数字
 年 ～ 
 年
全てクリア
前の画面に戻る

Study of the elementary $$(K^-,n)$$ reactions to search for the $$bar{K}NN$$ bound state via the $$^3$$He$$(K^-,n)$$ reaction at J-PARC

J-PARCにおける$$^3$$He$$(K^-,n)$$反応による$$bar{K}NN$$束縛状態探索のための素過程$$(K^-,n)$$反応の研究

山我 拓巳*; 谷田 聖   ; 他74名*

Yamaga, Takumi*; Tanida, Kiyoshi; 74 of others*

We have searched for the simplest kaonic nuclear state, $$bar{K}NN$$, using the in-flight $$^3$$He$$(K^-,n)$$ reaction at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at $$theta_{n}^{rm lab}=0^{circ}$$, an excess of yield was observed just below the $$K^-pp$$ mass-threshold, which cannot be explained by any elementary reactions [PTEP 2015, 061D01]. To understand the missing-mass spectrum of $$^3$$He$$(K^-,n)X$$, we investigated the elementary $$(K^-,n)$$ reactions using hydrogen and deuterium targets. The $$p(K^-,n)X$$ missing-mass spectrum was well described by the charge-exchange reaction. However, in the $$d(K^-,n)X$$ spectrum, we observed an excess of yield just below the $$K^-p$$ mass-threshold, which was similar to that in the $$^3$$He$$(K^-,n)X$$ spectrum.

使用言語

 :

English

掲載資料名

 :

AIP Conference Proceedings 1735

巻

 :

号

 :

ページ数

 :

p.040007_1 - 040007_6

発行年月

 :

2016/05

発表会議名

 :

16th International Conference on Hadron Spectroscopy (Hadron 2015)

開催年月

 :

2015/09

開催都市

 :

Newport News

開催国

 :

U.S.A.

キーワード

 :

ハドロン分光

特許データ

 :

PDF

 :


論文URL

 :

https://doi.org/10.1063/1.4949411

研究データの公開先DOI

 :

使用施設

 :

J-PARC原子核素粒子実験施設  

広報プレスリリース

 :

論文解説記事
(成果普及情報誌)

 :

受委託・共同研究相手機関

 :

Access

 :

- Accesses

InCites™

 :

パーセンタイル：0.41

分野：Physics, Nuclear

Altmetrics

 :

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.

前の画面に戻る