Near-Threshold Photoproduction of Λ(1520) from Protons and Deuterons

被引：32

作者：

Muramatsu, N. ^{[1
,2
]}

Chen, J. Y. ^{[3
,4
]}

Chang, W. C. ^{[4
]}

Ahn, D. S. ^{[1
,5
]}

Ahn, J. K. ^{[5
]}

Akimune, H. ^{[6
]}

Asano, Y. ^{[2
]}

Date, S. ^{[7
]}

Ejiri, H. ^{[1
,7
]}

Fujimura, H. ^{[8
,9
]}

Fujiwara, M. ^{[1
,2
]}

Fukui, S. ^{[10
]}

Hasegawa, S. ^{[1
]}

Hicks, K. ^{[11
]}

Horie, K. ^{[1
]}

Hotta, T. ^{[1
]}

Imai, K. ^{[8
]}

Ishikawa, T. ^{[9
]}

Iwata, T. ^{[12
]}

Kato, Y. ^{[1
]}

Kawai, H. ^{[13
]}

Kino, K. ^{[1
]}

Kohri, H. ^{[1
]}

Kumagai, N. ^{[7
]}

Makino, S. ^{[14
]}

Matsuda, T. ^{[15
]}

Matsumura, T. ^{[16
]}

Matsuoka, N. ^{[1
]}

Mibe, T. ^{[11
]}

Miyabe, M. ^{[8
]}

Miyachi, M. ^{[17
]}

Nakano, T. ^{[1
]}

Niiyama, M. ^{[8
,18
]}

Nomachi, M. ^{[19
]}

Ohashi, Y. ^{[7
]}

Ohkuma, H. ^{[7
]}

Ooba, T. ^{[13
]}

Oshuev, D. S. ^{[4
]}

Rangacharyulu, C. ^{[20
]}

Sakaguchi, A. ^{[19
]}

Shagin, P. M. ^{[21
]}

Shiino, Y. ^{[13
]}

Shimizu, H. ^{[9
]}

Sugaya, Y. ^{[19
]}

Sumihama, M. ^{[1
]}

Toi, Y. ^{[15
]}

Toyokawa, H. ^{[7
]}

Wakai, A. ^{[22
]}

Wang, C. W. ^{[4
]}

Wang, S. C. ^{[4
]}

机构：

[1] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan

[2] Japan Atom Energy Agcy, Kansai Photon Sci Inst, Kyoto 6190215, Japan

[3] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan

[4] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[5] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

[6] Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan

[7] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795143, Japan

[8] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[9] Tohoku Univ, Nucl Sci Lab, Sendai, Miyagi 9820826, Japan

[10] Nagoya Univ, Dept Phys, Aichi 4648602, Japan

[11] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[12] Yamagata Univ, Dept Phys, Yamagata 9908560, Japan

[13] Chiba Univ, Dept Phys, Chiba 2638522, Japan

[14] Wakayama Med Univ, Wakayama 6418509, Japan

[15] Miyazaki Univ, Dept Appl Phys, Miyazaki 8892192, Japan

[16] Natl Def Acad Japan, Kanagawa 2398686, Japan

[17] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[18] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[19] Osaka Univ, Dept Phys, Osaka 5600043, Japan

[20] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada

[21] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[22] Akita Res Inst Brain & Blood Vessels, Akita 0100874, Japan

[23] Osaka Univ, Inst Prot Res, Osaka 5650871, Japan

[24] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 01期

关键词：

THETA(+);

D O I：

10.1103/PhysRevLett.103.012001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Photoproduction of Lambda(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4 GeV in the SPring-8 LEPS experiment. For the first time, the differential cross sections were measured at low energies and with a deuterium target. A large asymmetry of the production cross sections from protons and neutrons was observed at backward K(+/0) angles. This suggests the importance of the contact term, which coexists with t-channel K exchange under gauge invariance. This interpretation was compatible with the differential cross sections, decay asymmetry, and photon beam asymmetry measured in the production from protons at forward K(+) angles.

引用

页数：5

共 24 条

[1] STRANGENESS EXCHANGE IN THE PHOTOPRODUCTION OF K+LAMBDA-(1520) BETWEEN 2.8 AND 4.8GEV
BARBER, DP
DAINTON, JB
LEE, LCY
MARSHALL, R
THOMPSON, JC
WILLIAMS, DT
BRODBECK, TJ
FROST, G
NEWTON, D
PATRICK, GN
PEARCE, GF
SLOAN, T
BROOKES, GR
HAYNES, WJ
WILKES, PB
[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1980, 7 (01): : 17 - 20
[2] Electroproduction of the Λ(1520) hyperon -: art. no. 044601
Barrow, SP
Dennis, L
McAleer, SB
Adams, G
Amaryan, MJ
Anciant, E
Anghinolfi, M
Asavapibhop, B
Asryan, G
Audit, G
Auger, T
Avakian, H
Ball, JP
Battaglieri, M
Beard, K
Bektasoglu, M
Bianchi, N
Biselli, AS
Boiarinov, S
Bonner, BE
Bouchigny, S
Branford, D
Briscoe, WJ
Brooks, WK
Burkert, VD
Calarco, JR
Capitani, GP
Carman, DS
Carnahan, B
Ciciani, L
Clark, R
Cole, PL
Coleman, A
Connelly, J
Cords, D
Corvisiero, P
Crabb, D
Crannell, H
Cummings, JP
DeSanctis, E
DeVita, R
Degtyarenko, PV
Demirchyan, R
Deppman, A
Dhuga, KS
Djalali, C
Dodge, GE
Domingo, J
Doughty, D
Dragovitsch, P
[J]. PHYSICAL REVIEW C, 2001, 64 (04): : 10
[3] Search for Θ+(1540) pentaquark in high-statistics measurement of γp→(K)over-bar0K+n at CLAS -: art. no. 042001
Battaglieri, M
de Vita, R
Kubarovsky, V
Guo, L
Mutchler, GS
Stoler, P
Weygand, DP
Ambrozewicz, P
Anghinolfi, M
Asryan, G
Avakian, H
Bagdasaryan, H
Baillie, N
Ball, JP
Baltzell, NA
Batourine, V
Bedlinskiy, I
Bellis, M
Benmouna, N
Berman, BL
Biselli, AS
Bouchigny, S
Boiarinov, S
Bradford, R
Branford, D
Briscoe, WJ
Brooks, WK
Bültmann, S
Burkert, VD
Butuceanu, C
Calarco, JR
Careccia, SL
Carman, DS
Chen, S
Clinton, E
Cole, PL
Coltharp, P
Crabb, D
Crannell, H
Cummings, JP
Dale, D
De Sanctis, E
Degtyarenko, PV
Deur, A
Dharmawardane, KV
Djalali, C
Dodge, GE
Donnelly, J
Doughty, D
Dugger, M
[J]. PHYSICAL REVIEW LETTERS, 2006, 96 (04)
[4] Blatt J.M., 1952, Theoretical Nuclear Physics
[5] CERN, 1993, W5013 CERN
[6] Search for the Θ+ pentaquark in the reactions γp→(K)over-bar0K+n and γp→(K)over-bar0K0p
De Vita, R.
Battaglieri, M.
Kubarovsky, V.
Baltzell, N. A.
Bellis, M.
Goett, J.
Guo, L.
Mutchler, G. S.
Stoler, P.
Ungaro, M.
Weygand, D. P.
Amaryan, M. J.
Ambrozewicz, P.
Anghinolfi, M.
Asryan, G.
Avakian, H.
Bagdasaryan, H.
Baillie, N.
Ball, J. P.
Batourine, V.
Bedlinskiy, I.
Benmouna, N.
Berman, B. L.
Biselli, A. S.
Boiarinov, S.
Bouchigny, S.
Bradford, R.
Branford, D.
Briscoe, W. J.
Brooks, W. K.
Bultmann, S.
Burkert, V. D.
Butuceanu, C.
Calarco, J. R.
Careccia, S. L.
Carman, D. S.
Chen, S.
Clinton, E.
Cole, P. L.
Collins, P.
Coltharp, P.
Crabb, D.
Crannell, H.
Crede, V.
Cummings, J. P.
Dale, D.
De Masi, R.
De Sanctis, E.
Degtyarenko, P. V.
Deur, A.
[J]. PHYSICAL REVIEW D, 2006, 74 (03):
[7] Coupling of (K)over-bar*N to the Λ(1520)
Hyodo, T
Sarkar, S
Hosaka, A
Oset, E
[J]. PHYSICAL REVIEW C, 2006, 73 (03):
[8] KARLINER M, ARXIVHEPPH0506084
[9] Recent results and prospects on the Θ+ study at LEPS
Muramatsu, Norihito
[J]. PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2007, (168): : 10 - 14
[10] Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron -: art. no. 012002
Nakano, T
Ahn, DS
Ahn, JK
Akimune, H
Asano, Y
Chang, WC
Daté, S
Ejiri, H
Fujimura, H
Fujiwara, M
Hicks, K
Hotta, T
Imai, K
Ishikawa, T
Iwata, T
Kawai, H
Kim, ZY
Kino, K
Kohri, H
Kumagai, N
Makino, S
Matsumura, T
Matsuoka, N
Mibe, T
Miwa, K
Miyabe, M
Miyachi, Y
Morita, M
Muramatsu, N
Niiyama, M
Nomachi, M
Ohashi, Y
Ooba, T
Ohkuma, H
Oshuev, DS
Rangacharyulu, C
Sakaguchi, A
Sasaki, T
Shagin, PM
Shiino, Y
Shimizu, H
Sugaya, Y
Sumihama, M
Toyokawa, H
Wakai, A
Wang, CW
Wang, SC
Yonehara, K
Yorita, T
Yoshimura, M
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (01)

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