2π0 photoproduction experiment at SPring-8

被引:0
作者
Matsumura, T [1 ]
Kohri, H
Hotta, T
Nakano, T
Mibe, T
Zegers, RGT
Fujiwara, M
Muramatsu, N
Ishikawa, T
Miyabe, M
Niiyama, M
Sumihama, M
Nakamura, H
Sugaya, Y
Kawai, H
Ooba, T
Shiino, Y
Shagin, PM
Hicks, K
Rangacharyulu, C
Daté, S
Ohashi, Y
Yorita, T
Tajima, Y
Yoshida, HY
Oshuev, D
Ahn, JK
Kasagi, J
Kinoshita, T
Nakabayashi, T
Yamazaki, H
Shimizu, H
机构
[1] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047, Japan
[2] Adv Sci Res Ctr, Japan Atom Energy Res Inst, Tokai, Ibaragi 3191195, Japan
[3] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[4] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan
[5] Osaka Univ, Nucl Studies Lab, Toyonaka, Osaka 5600043, Japan
[6] Chiba Univ, Grad Sch Sci & Technol, Inage, Chiba 2638522, Japan
[7] Univ Minnesota, Dept Phys & Astron, Minneapolis, MN 55455 USA
[8] Ohio Univ, Dept Phys, Athens, OH 45701 USA
[9] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 532, Canada
[10] Japan Syncrotron Radiat Res Inst, Sayou, Hyogo 6795143, Japan
[11] Yamagata Univ, Dept Phys, Kojirakawa, Yamagata 9908560, Japan
[12] Acad Sinica, Inst Phys, Taipei 11529, Taiwan
[13] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea
[14] Tohoku Univ, Nucl Sci Lab, Taihaku Ku, Sendai, Miyagi 9820826, Japan
关键词
D O I
10.1016/S0375-9474(03)01166-7
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The gammaA --> pi(0)pi(0)X reaction is one of the tools to effectively investigate partial restoration of chiral symmetry. An experiment was performed at the LEPS/SPring-8 facility using various nuclear targets. In this experiment, a 2pi calorimeter consisting of 252 Lead/SCIFI modules was used to detect the photons coming from the pi(0)pi(0) decay. A preliminary analysis shows that pi(0)pi(0)X events are observed.
引用
收藏
页码:723C / 726C
页数:4
相关论文
共 6 条
[1]   Temperature dependence of the width of the giant dipole resonance in Sn-120 and Pb-208 [J].
Ormand, WE ;
Bortignon, PF ;
Broglia, RA .
PHYSICAL REVIEW LETTERS, 1996, 77 (04) :607-610
[2]   ππ pairs in nuclei and the σ meson -: art. no. 018201 [J].
Bonutti, F ;
Camerini, P ;
Fragiacomo, E ;
Grion, N ;
Rui, R ;
Brack, JT ;
Felawka, L ;
Gibson, EF ;
Hofman, G ;
Kermani, M ;
Mathie, EL ;
McFarland, S ;
Meier, R ;
Raywood, K ;
Ottewell, D ;
Sevior, ME ;
Smith, GR ;
Tacik, R .
PHYSICAL REVIEW C, 1999, 60 (01) :4
[3]   Precursor of chiral symmetry restoration in the nuclear medium [J].
Hatsuda, T ;
Kunihiro, T ;
Shimizu, H .
PHYSICAL REVIEW LETTERS, 1999, 82 (14) :2840-2843
[4]   In-medium modifications of the ππ interaction in photon-induced reactions -: art. no. 222302 [J].
Messchendorp, JG ;
Janssen, S ;
Kotulla, M ;
Ahrens, J ;
Annand, JRH ;
Beck, R ;
Bloch, F ;
Caselotti, G ;
Fog, L ;
Hornidge, D ;
Krusche, B ;
Langgärtner, W ;
McGeorge, JC ;
MacGregor, IJD ;
Mengel, K ;
Metag, V ;
Novotny, R ;
Owens, RO ;
Pfeiffer, M ;
Sack, S ;
Sanderson, R ;
Schadmand, S .
PHYSICAL REVIEW LETTERS, 2002, 89 (22)
[5]  
Nakano T, 2001, NUCL PHYS A, V684, p71C
[6]   Measurement of π0π0 Production in the nuclear medium by π- Interactions at 0.408 GeV/c [J].
Starostin, A ;
Staudenmaier, HM ;
Allgower, CE ;
Bekrenev, V ;
Berger, E ;
Briscoe, WJ ;
Clajus, M ;
Comfort, JR ;
Craig, K ;
Grosnick, D ;
Isenhower, D ;
Knecht, N ;
Koetke, D ;
Koulbardis, A ;
Kozlenko, N ;
Kruglov, S ;
Kycia, T ;
Lolos, G ;
Lopatin, I ;
Manley, DM ;
Manweiler, B ;
Marusic, A ;
McDonald, S ;
Nefkens, BMK ;
Olmsted, J ;
Papandreou, Z ;
Peaslee, D ;
Peterson, RJ ;
Phaisangittisakul, N ;
Prakhov, S ;
Pulver, M ;
Ramirez, AF ;
Sadler, M ;
Shafi, A ;
Slaus, I ;
Spinka, H ;
Stanislaus, S ;
Supek, I ;
Tippens, WB .
PHYSICAL REVIEW LETTERS, 2000, 85 (26) :5539-5542