Search for nucleon decays induced by GUT magnetic monopoles with the MACRO experiment

被引：36

作者：

Ambrosio, M

Antolini, R

Auriemma, G

Bakari, D

Baldini, A

Barbarino, GC

Barish, BC

Battistoni, G

Becherini, Y

Bellotti, R

Bemporad, C

Bernardini, P

Bilokon, H

Bloise, C

Bower, C

Brigida, M

Bussino, S

Cafagna, F

Calicchio, M

Campana, D

Carboni, M

Caruso, R

Cecchini, S

Cei, F

Chiarella, V

Choudhary, BC

Coutu, S

Cozzi, M

De Cataldo, G

Dekhissi, H

De Marzo, C

De Mitri, I

Derkaoui, J

De Vincenzi, M

Di Credico, A

Erriquez, O

Favuzzi, C

Forti, C

Fusco, P

Giacomelli, G

Giannini, G

Giglietto, N

Giorgini, M

Grassi, M

Grillo, A

Guarino, F

Gustavino, C

Habig, A

Hanson, K

Heinz, R

机构：

[1] Univ Naples, Dipartimento Fis, I-80125 Naples, Italy

[2] Ist Nazl Fis Nucl, I-80125 Naples, Italy

[3] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy

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

[5] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[6] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[7] Boston Univ, Dept Phys, Boston, MA 02215 USA

[8] CALTECH, Pasadena, CA 91125 USA

[9] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA

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

[11] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Assergi, Laquila, Italy

[12] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[13] Indiana Univ, Dept Astron, Bloomington, IN 47405 USA

[14] Univ Aquila, Dipartimento Fis, I-67100 Laquila, Italy

[15] Ist Nazl Fis Nucl, I-67100 Laquila, Italy

[16] Univ Lecce, Dipartimento Fis, I-73100 Lecce, Italy

[17] Ist Nazl Fis Nucl, I-73100 Lecce, Italy

[18] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[19] Univ Pisa, Dipartimento Fis, I-56010 Pisa, Italy

[20] Ist Nazl Fis Nucl, I-56010 Pisa, Italy

[21] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[22] Ist Nazl Fis Nucl, I-00185 Rome, Italy

[23] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[24] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy

[25] Ist Nazl Fis Nucl, I-10125 Turin, Italy

[26] Univ Mohamed 1, Fac Sci, LPTP, Oujda, Morocco

[27] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy

[28] Ist Nazl Fis Nucl, Sez Roma Tre, I-00146 Rome, Italy

[29] Univ Basilicata, I-85100 Potenza, Italy

[30] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[31] CNR, Ist IASF, I-40129 Bologna, Italy

[32] Univ Trieste, I-34100 Trieste, Italy

[33] Ist Nazl Fis Nucl, I-34100 Trieste, Italy

[34] Univ Rome, Dipartimento Energet, I-00185 Rome, Italy

[35] Inst Space Sci, Bucharest 76900, Romania

[36] Penn State Univ, Dept Phys, University Pk, PA 16801 USA

[37] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, Cosenza, Italy

[38] RPD, PINSTECH, Islamabad, Pakistan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2002年 / 26卷 / 02期

关键词：

D O I：

10.1140/epjc/s2002-01045-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The interaction of a Grand Unification Magnetic Monopole with a nucleon can lead to a barion-number violating process in which the nucleon decays into a lepton and one or more mesons (catalysis of nucleon decay). In this paper we report an experimental study of the effects of a catalysis process in the MACRO detector. Using a dedicated analysis we obtain new magnetic monopole (MM) flux upper limits at the level of similar to 3 (.) 10(-16) cm(-2) s(-1) sr(-1) for 1.1(.) 10(-4) less than or equal to \beta\ less than or equal to 5 (.) 10(-3), based on the search for catalysis events in the MACRO data. We also analyze the dependence of the MM flux limit on the catalysis cross section.

引用

页码：163 / 172

页数：10

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