Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned12B and12N

K. Minamisono; K. Matsuta; T. Minamisoino; T. Sumikama; T. Nagatomo; M. Ognra; T. Iwakoshi; T. Yamaguchi; M. Fukuda; M. Mihara; K. Kosmgiri; M. Morita

Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned¹²B and¹²N

K. Minamisono, K. Matsuta, T. Minamisoino, T. Sumikama, T. Nagatomo, M. Ognra, T. Iwakoshi, T. Yamaguchi, M. Fukuda, M. Mihara, K. Kosmgiri, M. Morita

SCI - Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The G-parity irregular induced tensor form factor in the weak nucléon a×ial vector current has been precisely determined by measuring the alignment correlation terms in the βray angular distributions of the purely spin aligned mirror pair ¹²B and ¹²N, The coefficient of the induced tensor term was determined to be 2Mf _Tf_A = -0.21 ±0.09 (stat.) ±0.07 (syst.) ± 0.05 (theory) at a 90% confidence level. The previously obtained data in the year 1996 was reanalyzed to be added to the present result. The combined result is 2Mf_Tf_A = -0.15 ± 0.12 ±0.05 (theory) at a 90% confidence level. The obtained induced tensor coefficient is vanishingly small. In order to derive these numerical values from the e×perimental data the weak magnetism and a×ial charge, and also their charge dependence should be known. Theoretical investigation on these quantities is clearly described. Also we set constraints on the Kubodera-Delorme-Rho parameters from the present result together with the results of correlation-type e×periments in the mass A = 8 and 20 systems as ς= -(0.12 ±0.14) × 10^-3 MeV^-1 and X = + (0.30 ±0.88) × 10^-3 in the 1 σ level.

Original language	English
Title of host publication	Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model
Subtitle of host publication	Accel. and Non-Accel. and Space Appr.
Editors	H.V. Klapdor-Kleingrothaus
Pages	695-700
Number of pages	6
Publication status	Published - 2003 Dec 1
Event	Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr. - Oulu, Finland Duration: 2002 Jun 2 → 2002 Jun 7

Other

Other	Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr.
Country	Finland
City	Oulu
Period	02/6/2 → 02/6/7

ASJC Scopus subject areas

Engineering(all)

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Minamisono, K., Matsuta, K., Minamisoino, T., Sumikama, T., Nagatomo, T., Ognra, M., Iwakoshi, T., Yamaguchi, T., Fukuda, M., Mihara, M., Kosmgiri, K., & Morita, M. (2003). Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned¹²B and¹²N. In H. V. Klapdor-Kleingrothaus (Ed.), Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr. (pp. 695-700)

Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned¹²B and¹²N. / Minamisono, K.; Matsuta, K.; Minamisoino, T.; Sumikama, T.; Nagatomo, T.; Ognra, M.; Iwakoshi, T.; Yamaguchi, T.; Fukuda, M.; Mihara, M.; Kosmgiri, K.; Morita, M.

Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr.. ed. / H.V. Klapdor-Kleingrothaus. 2003. p. 695-700.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Minamisono, K, Matsuta, K, Minamisoino, T, Sumikama, T, Nagatomo, T, Ognra, M, Iwakoshi, T, Yamaguchi, T, Fukuda, M, Mihara, M, Kosmgiri, K & Morita, M 2003, Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned¹²B and¹²N. in HV Klapdor-Kleingrothaus (ed.), Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr.. pp. 695-700, Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr., Oulu, Finland, 02/6/2.

Minamisono K, Matsuta K, Minamisoino T, Sumikama T, Nagatomo T, Ognra M et al. Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned¹²B and¹²N. In Klapdor-Kleingrothaus HV, editor, Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr.. 2003. p. 695-700

Minamisono, K. ; Matsuta, K. ; Minamisoino, T. ; Sumikama, T. ; Nagatomo, T. ; Ognra, M. ; Iwakoshi, T. ; Yamaguchi, T. ; Fukuda, M. ; Mihara, M. ; Kosmgiri, K. ; Morita, M. / Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned¹²B and¹²N. Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr.. editor / H.V. Klapdor-Kleingrothaus. 2003. pp. 695-700

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title = "Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned12B and12N",

abstract = "The G-parity irregular induced tensor form factor in the weak nucl{\'e}on a×ial vector current has been precisely determined by measuring the alignment correlation terms in the βray angular distributions of the purely spin aligned mirror pair 12B and 12N, The coefficient of the induced tensor term was determined to be 2Mf TfA = -0.21 ±0.09 (stat.) ±0.07 (syst.) ± 0.05 (theory) at a 90% confidence level. The previously obtained data in the year 1996 was reanalyzed to be added to the present result. The combined result is 2MfTfA = -0.15 ± 0.12 ±0.05 (theory) at a 90% confidence level. The obtained induced tensor coefficient is vanishingly small. In order to derive these numerical values from the e×perimental data the weak magnetism and a×ial charge, and also their charge dependence should be known. Theoretical investigation on these quantities is clearly described. Also we set constraints on the Kubodera-Delorme-Rho parameters from the present result together with the results of correlation-type e×periments in the mass A = 8 and 20 systems as ς= -(0.12 ±0.14) × 10-3 MeV-1 and X = + (0.30 ±0.88) × 10-3 in the 1 σ level.",

author = "K. Minamisono and K. Matsuta and T. Minamisoino and T. Sumikama and T. Nagatomo and M. Ognra and T. Iwakoshi and T. Yamaguchi and M. Fukuda and M. Mihara and K. Kosmgiri and M. Morita",

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booktitle = "Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model",

note = "Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr. ; Conference date: 02-06-2002 Through 07-06-2002",

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TY - GEN

T1 - Recent investigation of the G-parity irregular weak nucleon current in β decays of spin aligned12B and12N

AU - Minamisono, K.

AU - Matsuta, K.

AU - Minamisoino, T.

AU - Sumikama, T.

AU - Nagatomo, T.

AU - Ognra, M.

AU - Iwakoshi, T.

AU - Yamaguchi, T.

AU - Fukuda, M.

AU - Mihara, M.

AU - Kosmgiri, K.

AU - Morita, M.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - The G-parity irregular induced tensor form factor in the weak nucléon a×ial vector current has been precisely determined by measuring the alignment correlation terms in the βray angular distributions of the purely spin aligned mirror pair 12B and 12N, The coefficient of the induced tensor term was determined to be 2Mf TfA = -0.21 ±0.09 (stat.) ±0.07 (syst.) ± 0.05 (theory) at a 90% confidence level. The previously obtained data in the year 1996 was reanalyzed to be added to the present result. The combined result is 2MfTfA = -0.15 ± 0.12 ±0.05 (theory) at a 90% confidence level. The obtained induced tensor coefficient is vanishingly small. In order to derive these numerical values from the e×perimental data the weak magnetism and a×ial charge, and also their charge dependence should be known. Theoretical investigation on these quantities is clearly described. Also we set constraints on the Kubodera-Delorme-Rho parameters from the present result together with the results of correlation-type e×periments in the mass A = 8 and 20 systems as ς= -(0.12 ±0.14) × 10-3 MeV-1 and X = + (0.30 ±0.88) × 10-3 in the 1 σ level.

AB - The G-parity irregular induced tensor form factor in the weak nucléon a×ial vector current has been precisely determined by measuring the alignment correlation terms in the βray angular distributions of the purely spin aligned mirror pair 12B and 12N, The coefficient of the induced tensor term was determined to be 2Mf TfA = -0.21 ±0.09 (stat.) ±0.07 (syst.) ± 0.05 (theory) at a 90% confidence level. The previously obtained data in the year 1996 was reanalyzed to be added to the present result. The combined result is 2MfTfA = -0.15 ± 0.12 ±0.05 (theory) at a 90% confidence level. The obtained induced tensor coefficient is vanishingly small. In order to derive these numerical values from the e×perimental data the weak magnetism and a×ial charge, and also their charge dependence should be known. Theoretical investigation on these quantities is clearly described. Also we set constraints on the Kubodera-Delorme-Rho parameters from the present result together with the results of correlation-type e×periments in the mass A = 8 and 20 systems as ς= -(0.12 ±0.14) × 10-3 MeV-1 and X = + (0.30 ±0.88) × 10-3 in the 1 σ level.

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M3 - Conference contribution

SN - 0750309342

SP - 695

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BT - Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model

A2 - Klapdor-Kleingrothaus, H.V.

T2 - Beyond the desert 2002:Accel., Non-accelerator and Space Appr. in the New Millennium - Proc. of the Third Int. Conf. on Part. Phys. Beyond the Standard Model: Accel. and Non-Accel. and Space Appr.

Y2 - 2 June 2002 through 7 June 2002

ER -