Absolute lower limits on the masses of selectrons and sneutrinos in the MSSM

被引：38

作者：

Heister, A ^{[1
]}

Schael, S

Barate, R

Brunelière, R

De Bonis, I

Decamp, D

Goy, C

Jezequel, S

Lees, JP

Martin, F

Merle, E

Minard, MN

Pietrzyk, B

Trocmé, B

Boix, G

Bravo, S

Casado, MP

Chmeissani, M

Crespo, JM

Fernandez, E

Fernandez-Bosman, M

Garrido, L

Graugés, E

Lopez, J

Martinez, M

Merino, G

Pacheco, A

Paneque, D

Ruiz, H

Colaleo, A

Creanza, D

De Filippis, N

de Palma, M

Iaselli, G

Maggi, G

Maggi, M

Nuzzo, S

Ranieri, A

Raso, G

Ruggieri, F

Selvaggi, G

Silvestris, L

Tempesta, P

Tricomi, A

Zito, G

Huang, X

Lin, J

Ouyang, Q

Wang, T

Xie, Y

机构：

[1] Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany

[2] CNRS, LAPP, IN2P3, F-74019 Annecy Le Vieux, France

[3] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Bellaterra, Barcelona, Spain

[4] Ist Nazl Fis Nucl, Dipartimento Fis, Sez Bari, I-70126 Bari, Italy

[5] Acad Sinica, Inst High Energy Phys, Beijing, Peoples R China

[6] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland

[7] Univ Clermont Ferrand, Phys Corpusculaire Lab, IN2P3, F-63177 Clermont Ferrand, France

[8] Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[9] NRCD, GR-15310 Athens, Greece

[10] Ecole Polytech, Laoratoire Leprince Ringuet, IN2P3, CNRS, F-91128 Palaiseau, France

[11] Univ Florence, Dipartimento Fis, Sez Firenze, Ist Nazl Fis Nucl, I-50125 Florence, Italy

[12] Ist Nazl Fis Nucl, LNF, I-00044 Frascati, Italy

[13] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[14] Haverford Coll, Dept Phys, Haverford, PA 19041 USA

[15] Univ Heidelberg, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[16] Univ London Imperial Coll Sci & Technol, Dept Phys, London SW7 2BZ, England

[17] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

[18] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

[19] Catholic Univ Louvain, Inst Phys Nucl, Dept Phys, B-1348 Louvain, Belgium

[20] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[21] Univ Aix Marseille 2, Ctr Phys Particules Marseille, IN2P3, CNRS, F-13288 Marseille, France

[22] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[23] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[24] Max Planck Inst Phys & Astrophys, Werner Hiesenberg Inst, D-80805 Munich, Germany

[25] Univ Paris 11, Lab Accelerateur Lineaire, IN2P3, CNRS, F-91898 Orsay, France

[26] Univ Pisa, Dipartimento Fis, Ist Nazl Fis Nucl, Sez Pisa, I-56010 Pisa, Italy

[27] Scuola Normale Super Pisa, I-56010 Pisa, Italy

[28] Univ London Royal Holloway & Bedford New Coll, Dept Phys, Egham TW20 0EX, Surrey, England

[29] CERN, CH-1211 Geneva 23, Switzerland

[30] Dipartimento Fis, I-95129 Catania, Italy

[31] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy

[32] CNR, Ist Cosmo Geofis, Turin, Italy

[33] Univ Barcelona, E-08028 Barcelona, Spain

[34] Univ Palermo, Dipartimento Fis & Tecnol Relative, Palermo, Italy

[35] Tsinghua Univ, Dept Phys, Beijing, Peoples R China

[36] Univ Montpellier 2, Grp Astroparticules Montpellier, F-34095 Montpellier, France

来源：

PHYSICS LETTERS B | 2002年 / 544卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(02)02471-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The results of searches for selectrons, charginos and neutralinos performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV are interpreted in the framework of the Minimal Supersymmetric extension of the Standard Model with R-parity conservation. Under the assumptions of gaugino and sfermion mass unification and no sfermion mixing, an absolute lower limit of 73 GeV/c(2) is set on the mass of the lighter selectron (e) over tilde (R) at the 95% confidence level. Similarly, limits on the masses of the heavier selectron (e) over tilde (L) and of the sneutrino (nu) over tilde (e) are set at 107 and 84 GeV/c(2), espectively. Additional constraints are derived from the results of the searches for Higgs bosons. The results are also interpreted in the framework of minimal supergravity. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：73 / 88

页数：16

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