Simultaneous measurements of the $\beta$ -neutrino angular correlation in $^{32}$Ar pure Fermi and pure Gamow-Teller transitions using $\beta$ -proton coincidences
| dc.contributor.author | ARAUJO-ESCALONA, V. | |
| dc.contributor.author | ATANASOV, D. | |
| hal.structure.identifier | École Nationale Supérieure d'Ingénieurs de Caen [ENSICAEN] | |
| dc.contributor.author | FLÉCHARD, X. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | ALFAURT, P. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | ASCHER, P. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | BLANK, B. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | DAUDIN, L. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | GERBAUX, M. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | GIOVINAZZO, J. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | GRÉVY, S. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | KURTUKIAN-NIETO, T. | |
| hal.structure.identifier | École Nationale Supérieure d'Ingénieurs de Caen [ENSICAEN] | |
| dc.contributor.author | LIÉNARD, E. | |
| hal.structure.identifier | École Nationale Supérieure d'Ingénieurs de Caen [ENSICAEN] | |
| dc.contributor.author | QUÉMÉNER, G. | |
| dc.contributor.author | SEVERIJNS, N. | |
| dc.contributor.author | VANLANGENDONCK, S. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | VERSTEEGEN, M. | |
| dc.contributor.author | ZAKOUCKY, D. | |
| dc.date.issued | 2020 | |
| dc.description.abstractEn | We report first time measurements of the beta-neutrino angular correlation based on the kinetic energy shift of protons emitted in parallel or anti-parallel directions with respect to the positron in the beta decay of $^{32}$Ar. This proof of principle experiment provided simultaneous measurements for the superallowed 0$^+$~$\rightarrow$~0$^+$ transition followed by a 3356~keV proton emission and for a Gamow-Teller transition followed by a 2123~keV proton emission. The results, respectively ${\tilde a_{\beta\nu}}=1.01(3)_{(stat)}(2)_{(syst)}$ and ${\tilde a_{\beta\nu}}=-0.22(9)_{(stat)}(2)_{(syst)}$, are found in agreement with the Standard Model. A careful analysis of the data shows that future measurements can reach a precision level of 10$^{-3}$ for both pure Fermi and pure Gamow-Teller decay channels, providing new constraints on both scalar and tensor weak interactions. | |
| dc.description.sponsorship | Etudes de l'interaction faible avec la décroissance de 32Ar - ANR-18-CE31-0004 | |
| dc.language.iso | en | |
| dc.subject.en | Electroweak Interaction | |
| dc.subject.en | Symmetries | |
| dc.subject.en | energy: kinetic | |
| dc.subject.en | p: energy | |
| dc.subject.en | Gamow-Teller transition | |
| dc.subject.en | angular correlation | |
| dc.subject.en | semileptonic decay | |
| dc.subject.en | weak interaction | |
| dc.subject.en | semiconductor detector | |
| dc.subject.en | argon | |
| dc.subject.en | experimental results | |
| dc.title.en | Simultaneous measurements of the $\beta$ -neutrino angular correlation in $^{32}$Ar pure Fermi and pure Gamow-Teller transitions using $\beta$ -proton coincidences | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevC.101.055501 | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Expérimentale [nucl-ex] | |
| dc.identifier.arxiv | 1906.05135 | |
| bordeaux.journal | Phys.Rev.C | |
| bordeaux.page | 055501 | |
| bordeaux.volume | 101 | |
| bordeaux.issue | 5 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02159729 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02159729v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Phys.Rev.C&rft.date=2020&rft.volume=101&rft.issue=5&rft.spage=055501&rft.epage=055501&rft.au=ARAUJO-ESCALONA,%20V.&ATANASOV,%20D.&FL%C3%89CHARD,%20X.&ALFAURT,%20P.&ASCHER,%20P.&rft.genre=article |
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