New experimental limits on violations of the Pauli exclusion principle obtained with the Borexino Counting Test Facility

被引：55

作者：

Back, HO

Balata, M

de Bari, A

de Bellefon, A

Bellini, G

Benziger, J

Bonetti, S

Buck, C

Caccianiga, B

Cadonati, L

Calaprice, F

Cecchet, G

Chen, M

Di Credico, A

Dadoun, O

D'Angelo, D

Derbin, A ^{[1
]}

Deutsch, M

Etenko, A

von Feilitzsch, F

Fernholz, R

Ford, R

Franco, D

Freudiger, B

Galbiati, C

Gazzana, S

Giammarchi, MG

Goeger-Neff, M

Goretti, A

Grieb, C

Hampel, W

Harding, E

Hartmann, FX

Heusser, G

Ianni, A

Ianni, AM

de Kerret, H

Kiko, J

Kirsten, T

Kobychev, VV

Korga, G

Korschinek, G

Kozlov, Y

Kryn, D

Laubenstein, M

Lendvai, C

Leung, M

Litvinovich, E

Lombardi, P

Machulin, I

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Russia

[2] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Assergi, AQ, Italy

[3] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[4] Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[5] Lab Phys Corpusculaire & Cosmol, F-75231 Paris 05, France

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

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

[8] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[9] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

[10] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada

[11] Tech Univ Munich, D-85747 Garching, Germany

[12] MIT, Dept Phys, Cambridge, MA 02139 USA

[13] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy

[14] RRC Kurchatov Inst, Moscow 123182, Russia

[15] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[16] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[17] KFKI RMKI, H-1121 Budapest, Hungary

[18] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA

[19] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[20] Virginia Polytech Inst & State Univ, Dept Phys, Blacksburg, VA 24061 USA

来源：

EUROPEAN PHYSICAL JOURNAL C | 2004年 / 37卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1140/epjc/s2004-01991-1

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 Pauli exclusion principle (PEP) has been tested for nucleons (n, p) in C-12 and O-16 nuclei, using the results of background measurements with the prototype of the Borexino detector, the Counting Test Facility (CTF). The approach consisted of a search for gamma, n, p and/or alpha' s emitted in a non-Paulian transition of 1P- shell nucleons to the filled 1S(1/2) shell in nuclei. Similarly, the Pauli-forbidden beta(+/-) decay processes were searched for. Due to the extremely low background and the large mass (4.2 tons) of the CTF detector, the following most stringent up-to-date experimental bounds on PEP violating transitions of nucleons have been established: tau(C-12 --> (12)(C) over tilde + gamma) > 2.1 . 10(27) y, tau(C-12 --> (11)(B) over tilde + p) > 5.0 . 10(26) y, tau(C-12(O-16) --> 11 (C) over tilde((15)(O) over tilde) + n) > 3.7 . 10(26) y, tau(C-12 --> (8)(Be) over tilde+ alpha) > 6.1 . 10(23) y, tau(C-12 --> (12)(N) over tilde + e(-) + (nu) over tilde (e)) > 7.6 . 10(27) y and tau(C-12 --> (12)(B) over tilde + e(+) + nu(e)) > 7.7 . 10(27) y, all at 90% C. L.

引用

页码：421 / 431

页数：11

共 42 条

[41] Energy and spatial resolution of a large-volume liquid-scintillator detector [J].

Smirnov, OJ .

INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2003, 46 (03) :327-344

[42] STUDY OF INVISIBLE NUCLEON DECAY, N-]NU-NU(NU)OVER-BAR, AND A FORBIDDEN NUCLEAR TRANSITION IN THE KAMIOKANDE DETECTOR [J].

SUZUKI, Y ;

FUKUDA, Y ;

HIRATA, KS ;

INOUE, K ;

ISHIDA, T ;

KAJITA, T ;

KIHARA, K ;

NAKAHATA, M ;

NAKAMURA, K ;

SAKAI, A ;

SATO, N ;

TOTSUKA, Y ;

MORI, M ;

OYAMA, Y ;

SUZUKI, A ;

TAKAHASHI, K ;

YAMADA, M ;

KOSHIBA, M ;

NISHIJIMA, K ;

KAJUMURA, T ;

SUDA, T ;

SUZUKI, AT ;

MIYANO, K ;

MIYATA, H ;

TAKEI, H ;

KODERA, E ;

NAGASHIMA, Y ;

TAKITA, M ;

YOKOYAMA, H ;

KANEYUKI, K ;

TAKEUCHI, Y ;

TANIMORI, T ;

EJIRI, H .

PHYSICS LETTERS B, 1993, 311 (1-4) :357-361

← 1 2 3 4 5 →