Branching ratio of the electromagnetic decay of the Σ+(1385)

被引：15

作者：

Keller, D. ^{[1
]}

Hicks, K. ^{[1
]}

Adhikari, K. P. ^{[28
]}

Adikaram, D. ^{[28
]}

Amaryan, M. J. ^{[28
]}

Anghinolfi, M. ^{[19
]}

Baghdasaryan, H. ^{[28
,38
]}

Ball, J. ^{[7
]}

Battaglieri, M. ^{[19
]}

Bedlinskiy, I. ^{[22
]}

Biselli, A. S. ^{[5
,11
]}

Bookwalter, C. ^{[13
]}

Boiarinov, S. ^{[34
]}

Branford, D. ^{[10
]}

Briscoe, W. J. ^{[15
]}

Brooks, W. K. ^{[34
,36
]}

Burkert, V. D. ^{[34
]}

Carman, D. S. ^{[34
]}

Celentano, A. ^{[19
]}

Chandavar, S. ^{[1
]}

Cole, P. L. ^{[16
,34
]}

Contalbrigo, M. ^{[17
]}

Crede, V. ^{[13
]}

D'Angelo, A. ^{[20
,31
]}

Daniel, A. ^{[1
]}

Dashyan, N. ^{[40
]}

De Vita, R. ^{[19
]}

De Sanctis, E. ^{[18
]}

Djalali, C. ^{[33
]}

Doughty, D. ^{[8
,34
]}

Dupre, R. ^{[2
]}

El Alaoui, A. ^{[2
]}

El Fassi, L. ^{[2
]}

Elouadrhiri, L. ^{[34
]}

Eugenio, P. ^{[13
]}

Fedotov, G. ^{[33
]}

Gabrielyan, M. Y. ^{[12
]}

Gevorgyan, N. ^{[40
]}

Gilfoyle, G. P. ^{[30
]}

Giovanetti, K. L. ^{[23
]}

Gohn, W. ^{[9
]}

Golovatch, E. ^{[32
]}

Gothe, R. W. ^{[33
]}

Graham, L. ^{[33
]}

Griffioen, K. A. ^{[39
]}

Guidal, M. ^{[21
]}

Guler, N. ^{[28
]}

Guo, L. ^{[12
,34
]}

Hafidi, K. ^{[2
]}

Hakobyan, H. ^{[36
,40
]}

机构：

[1] Ohio Univ, Athens, OH 45701 USA

[2] Argonne Natl Lab, Argonne, IL 60439 USA

[3] Arizona State Univ, Tempe, AZ 85287 USA

[4] Canisius Coll, Buffalo, NY 14208 USA

[5] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[6] Catholic Univ Amer, Washington, DC 20064 USA

[7] CEA, Ctr Saclay, Irfu Serv Phys Nucl, F-91191 Gif Sur Yvette, France

[8] Christopher Newport Univ, Newport News, VA 23606 USA

[9] Univ Connecticut, Storrs, CT 06269 USA

[10] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland

[11] Fairfield Univ, Fairfield, CT 06824 USA

[12] Florida Int Univ, Miami, FL 33199 USA

[13] Florida State Univ, Tallahassee, FL 32306 USA

[14] Univ Genoa, I-16146 Genoa, Italy

[15] George Washington Univ, Washington, DC 20052 USA

[16] Idaho State Univ, Pocatello, ID 83209 USA

[17] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

[18] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[19] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[20] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[21] Inst Phys Nucl ORSAY, Orsay, France

[22] Inst Theoret & Expt Phys, Moscow 117259, Russia

[23] James Madison Univ, Harrisonburg, VA 22807 USA

[24] Kyungpook Natl Univ, Taegu 702701, South Korea

[25] Univ Grenoble 1, LPSC, CNRS IN2P3, INPG, Grenoble, France

[26] Univ New Hampshire, Durham, NH 03824 USA

[27] Norfolk State Univ, Norfolk, VA 23504 USA

[28] Old Dominion Univ, Norfolk, VA 23529 USA

[29] Rensselaer Polytech Inst, Troy, NY 12180 USA

[30] Univ Richmond, Richmond, VA 23173 USA

[31] Univ Roma Tor Vergata, I-00133 Rome, Italy

[32] Skobeltsyn Nucl Phys Inst, Moscow 119899, Russia

[33] Univ S Carolina, Columbia, SC 29208 USA

[34] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[35] Union Coll, Schenectady, NY 12308 USA

[36] Univ Tecn Federico Santa Maria, Valparaiso, Chile

[37] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[38] Univ Virginia, Charlottesville, VA 22901 USA

[39] Coll William & Mary, Williamsburg, VA 23187 USA

[40] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 05期

基金：

英国科学技术设施理事会; 美国能源部; 美国国家科学基金会; 新加坡国家研究基金会;

关键词：

RADIATIVE DECAYS; QUARK-MODEL; BARYONS; HYPERONS;

D O I：

10.1103/PhysRevD.85.052004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Sigma*(+)(1385) from the reaction gamma p -> K-0 Sigma*(+)(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Sigma* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the measured decay widths ratio Sigma(+)(1385)->Sigma(+)gamma/Sigma(+)(1385)->Sigma(+)pi(0)=11.95 +/-.2.21(stat)(-1.21)(+0.53)(sys)%and a deduced partial width of 250.0 +/- 56.9(stat)(-41.2)(+34.3)(sys) keV. AU-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Sigma*(+)(1385)->Sigma(+)gamma and Sigma*(0)(1385)->Lambda gamma partial widths that agree with the experimental measurements.

引用

页数：20

共 50 条

[31] Measurement of the Dalitz-decay branching ratio of the π0
Beddall, A.
Beddall, A.
EUROPEAN PHYSICAL JOURNAL C, 2008, 54 (03): : 365 - 370
[32] ALPHAS BRANCHING RATIO IN DECAY OF 149TB
CHU, YY
FRANZ, EM
FRIEDLANDER, G
PHYSICAL REVIEW, 1968, 175 (04): : 1523 - +
[33] BETA-DECAY BRANCHING RATIO OF LAMBDA HYPERON
ELY, RP
KALMUS, GE
POWELL, WM
MILLER, DJ
HENDERSON, C
STANNARD, FR
GIDAL, G
BULLOCK, FW
OSWALD, LO
SINGLETON, WJ
PHYSICAL REVIEW, 1963, 131 (02): : 868 - &
[34] BRANCHING RATIO OF THE ELECTRONIC MODE OF POSITIVE PION DECAY
ANDERSON, HL
FUJII, T
MILLER, RH
TAU, L
PHYSICAL REVIEW, 1960, 119 (06): : 2050 - 2067
[35] Measurement of the branching ratio of the KL→π+ π- decay with the KLOE detector
Ambrosino, F.
Antonelli, A.
Antonelli, M.
Bacci, C.
Beltrame, P.
Bencivenni, G.
Bertolucci, S.
Bini, C.
Bloise, C.
Bocci, V.
Bossi, F.
Bowring, D.
Branchini, P.
Caloi, R.
Campana, P.
Capon, G.
Capussela, T.
Ceradini, F.
Chi, S.
Chiefari, G.
Ciambrone, P.
Conetti, S.
De Lucia, E.
De Santis, A.
De Simone, P.
De Zorzi, G.
Dell'Agnello, S.
Denig, A.
Di Domenico, A.
Di Donato, C.
Di Falco, S.
Di Micco, B.
Doria, A.
Dreucci, M.
Felici, G.
Ferrari, A.
Ferrer, M. L.
Finocchiaro, G.
Fiore, S.
Forti, C.
Franzini, P.
Gatti, C.
Gauzzi, P.
Giovannella, S.
Gorini, E.
Graziani, E.
Incagli, M.
Kluge, W.
Kulikov, V.
Lacava, F.
PHYSICS LETTERS B, 2006, 638 (2-3) : 140 - 145
[36] KS BRANCHING RATIO FOR 2 PION DECAY MODE
MORSE, RM
NAUENBER.U
BIERMAN, E
SAGER, D
COLLERAI.A
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1971, 16 (01): : 18 - &
[37] Measurement of the Dalitz-decay branching ratio of the π0
A. Beddall
A. Beddall
The European Physical Journal C, 2008, 54 : 365 - 370
[38] THE BRANCHING RATIO OF K-40 RADIOACTIVE DECAY
INGHRAM, MG
BROWN, H
PATTERSON, C
HESS, DC
PHYSICAL REVIEW, 1950, 80 (05): : 916 - 917
[39] Measurement of the branching ratio for the β decay of 14O
Voytas, P. A.
George, E. A.
Severin, G. W.
Zhan, L.
Knutson, L. D.
PHYSICAL REVIEW C, 2015, 92 (06):
[40] New measurement of the branching ratio of the decay Ξ0 → Σ0γ
Zinchenko, A
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2001, 99B : 93 - 95

← 1 2 3 4 5 →