Anomalous internal pair creation in Be-8 as a signature of the decay of a new particle

A. Vitez; A. Krasznahorkay; J. Gulyas; M. Csatlos; L. Csige; Z. Gacsi; A. Krasznahorkay; B. M. Nyako; F. W. N. De Boer; T. J. Ketel; J. Van Klinken

Anomalous internal pair creation in Be-8 as a signature of the decay of a new particle

A. Vitez^*, A. Krasznahorkay, J. Gulyas, M. Csatlos, L. Csige, Z. Gacsi, A. Krasznahorkay, B. M. Nyako, F. W. N. De Boer, T. J. Ketel, J. Van Klinken

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

In a measurement of the angular correlation of e(+)e(-) pairs in the isovector M1 decay from 1(+) level at 17.64 MeV in Be-8, a large deviation was found from quantum electrodynamics(QED)-prediction for internal pair conversion (IPC). By postulating the emission of a neutral particle with a mass of 12 (2.5) MeV/c(2) the structure of the angular correlation can be described.

Original language	English
Pages (from-to)	483-487
Number of pages	5
Journal	Acta Physica Polonica B
Volume	39
Issue number	2
Publication status	Published - Feb-2008
Event	30th Mazurian Lakes Conference on Physics - , Poland Duration: 2-Sep-2007 → 9-Sep-2007

Keywords

NEUTRAL BOSON
9 MEV/C(2)
MASS

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@article{2868c0592e574ebf883e60fdde8647cc,

title = "Anomalous internal pair creation in Be-8 as a signature of the decay of a new particle",

abstract = "In a measurement of the angular correlation of e(+)e(-) pairs in the isovector M1 decay from 1(+) level at 17.64 MeV in Be-8, a large deviation was found from quantum electrodynamics(QED)-prediction for internal pair conversion (IPC). By postulating the emission of a neutral particle with a mass of 12 (2.5) MeV/c(2) the structure of the angular correlation can be described.",

keywords = "NEUTRAL BOSON, 9 MEV/C(2), MASS",

author = "A. Vitez and A. Krasznahorkay and J. Gulyas and M. Csatlos and L. Csige and Z. Gacsi and A. Krasznahorkay and Nyako, {B. M.} and {De Boer}, {F. W. N.} and Ketel, {T. J.} and {Van Klinken}, J.",

year = "2008",

month = feb,

language = "English",

volume = "39",

pages = "483--487",

journal = "Acta Physica Polonica B",

issn = "0587-4254",

publisher = "JAGIELLONIAN UNIV PRESS",

number = "2",

note = "30th Mazurian Lakes Conference on Physics ; Conference date: 02-09-2007 Through 09-09-2007",

}

TY - JOUR

T1 - Anomalous internal pair creation in Be-8 as a signature of the decay of a new particle

AU - Vitez, A.

AU - Krasznahorkay, A.

AU - Gulyas, J.

AU - Csatlos, M.

AU - Csige, L.

AU - Gacsi, Z.

AU - Krasznahorkay, A.

AU - Nyako, B. M.

AU - De Boer, F. W. N.

AU - Ketel, T. J.

AU - Van Klinken, J.

PY - 2008/2

Y1 - 2008/2

N2 - In a measurement of the angular correlation of e(+)e(-) pairs in the isovector M1 decay from 1(+) level at 17.64 MeV in Be-8, a large deviation was found from quantum electrodynamics(QED)-prediction for internal pair conversion (IPC). By postulating the emission of a neutral particle with a mass of 12 (2.5) MeV/c(2) the structure of the angular correlation can be described.

AB - In a measurement of the angular correlation of e(+)e(-) pairs in the isovector M1 decay from 1(+) level at 17.64 MeV in Be-8, a large deviation was found from quantum electrodynamics(QED)-prediction for internal pair conversion (IPC). By postulating the emission of a neutral particle with a mass of 12 (2.5) MeV/c(2) the structure of the angular correlation can be described.

KW - NEUTRAL BOSON

KW - 9 MEV/C(2)

KW - MASS

M3 - Article

VL - 39

SP - 483

EP - 487

JO - Acta Physica Polonica B

JF - Acta Physica Polonica B

SN - 0587-4254

IS - 2

T2 - 30th Mazurian Lakes Conference on Physics

Y2 - 2 September 2007 through 9 September 2007

ER -