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We have studied the effect of resonant electronic state coupling on the formation of ultracold ground-state $^{85}$Rb$_2$. Ultracold Rb$_2$ molecules are formed by photoassociation (PA) to a coupled pair of $0_u^+$ states, $0_u^+(P_{1/2})$…

Atomic Physics · Physics 2008-10-31 H. K. Pechkis , D. Wang , Y. Huang , E. E. Eyler , P. L. Gould , W. C. Stwalley , C. P. Koch

Accelerator neutrino oscillation experiments seek to make precision measurements of the neutrino flavor oscillations muon (anti)neutrino to electron (anti)neutrino in order to determine the mass hierarchy of neutrinos and to search for CP…

High Energy Physics - Phenomenology · Physics 2012-10-15 Melanie Day , Kevin S. McFarland

In an effort to resolve the discrepancy between two measurements of the fundamental constant mu, the proton to electron mass ratio, at early times in the universe we reanalyze the same data used in the earlier studies. Our analysis of the…

The precision of experimental data and analysis techniques is a key feature of any discovery attempt. A striking example is the proton radius puzzle where the accuracy of the spectroscopy of muonic atoms challenges traditional electron…

The hydrogen molecule has become a test ground for quantum electrodynamical calculations in molecules. Expanding beyond studies on stable hydrogenic species to the heavier radioactive tritium-bearing molecules, we report on a measurement of…

Chemical Physics · Physics 2018-04-25 T. Madhu Trivikram , M. Schlösser , W. Ubachs , E. J. Salumbides

It is proposed that meson resonances are linear combinations of q-qbar and meson-meson (MM); baryon resonances are combinations of qqq and meson-baryon (MB). Mixing between these combinations arises via decays of confined states to…

High Energy Physics - Experiment · Physics 2014-11-20 D. V. Bugg

The existence of electric fields close to their critical value $E_c=\frac{m_e^2 c^3}{e \hbar}$ has been proved for massive cores of $10^7$ up to $10^{57}$ nucleons using a proton distribution of constant density and a sharp step function at…

Solar and Stellar Astrophysics · Physics 2009-03-26 Jorge A. Rueda H. , B. Patricelli , M. Rotondo , R. Ruffini , S-S. Xue

In this paper, we show that methanol (CH3OH) torsional-rotational transitions, which have increased sensitivity to small variations of mu - the electron-to-proton mass ratio, are shifted relative to less sensitive transitions in the…

Astrophysics of Galaxies · Physics 2026-03-09 J. S. Vorotyntseva , S. A. Levshakov

In this study, we explore the heterointerface of MgB$_2$ film on SiC substrate at atomic scale using electron microscopy and spectroscopy. We detect ~1 nm MgO between MgB$_2$ and SiC. Atomic-level electron energy loss spectra (EELS) show…

Superconductivity · Physics 2023-10-02 Xiaowen Zhang , Tiequan Xu , Ruochen Shi , Bo Han , Fachen Liu , Zhetong Liu , Xiaoyue Gao , Jinlong Du , Yue Wang , Peng Gao

We study the phenomenological consequences of maximal and near-maximal mixing of the electron neutrino with other ($x$=tau and/or muon) neutrinos. We describe the deviations from maximal mixing in terms of a parameter…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. C. Gonzalez-Garcia , C. Peña-Garay , Y. Nir , A. Yu. Smirnov

A possible supersymmetric interpretation of the new Higgs-like 126 GeV resonance involves a high sfermion mass scale, from tens of TeV to a PeV or above. This scale provides sufficiently large loop corrections to the Higgs mass and can…

High Energy Physics - Phenomenology · Physics 2013-06-12 David McKeen , Maxim Pospelov , Adam Ritz

The electron and muon magnetic moments have played, and continue to play, important roles in testing the fundamental mathematical description of physical reality called the Standard Model of particle physics (SM). The electron magnetic…

High Energy Physics - Experiment · Physics 2026-02-17 Gerald Gabrielse , Graziano Venanzoni

Due to the inconsistency in the results of the GEp/Gmp ratio of the proton, as extracted from the Rosenbluth and recoil polarization techniques, high precision measurements of the e-p elastic scattering cross sections were made at Q^2 =…

Nuclear Experiment · Physics 2009-09-29 Issam A. Qattan

The proton elastic form factor ratio is accessible in unpolarized Rosenbluth-type experiments as well as experiments which make use of polarization degrees of freedom. The extracted values show a distinct discrepancy, growing with $Q^2$.…

Nuclear Experiment · Physics 2018-08-15 Jan C. Bernauer

We report on a high-resolution spectroscopic survey of ${}^{6}\textrm{Li}{}^{40}\textrm{K}$ molecules near the $2\textrm{S}+4\textrm{P}$ dissociation threshold and produce a fully empirical representation for the $\textrm{B}^{1}\Pi$…

Atomic Physics · Physics 2022-02-23 Sofia Botsi , Anbang Yang , Mark M. Lam , Sambit B. Pal , Sunil Kumar , Markus Debatin , Kai Dieckmann

Euclidean point-to-point propagators or wall-to-wall correlators related to exchange by an unstable particle(sigma,rho,omega-mesons) are modified by presence of particle width. In particular, the usual method of deriving particle masses…

Nuclear Theory · Physics 2008-11-26 V. V. Flambaum , E. V. Shuryak

The B_s to mu+ mu- decay plays an outstanding role in tests of the Standard Model and physics beyond it. The LHCb collaboration has recently reported the first evidence for this decay at the 3.5 sigma level, with a branching ratio in the…

High Energy Physics - Phenomenology · Physics 2014-12-19 Andrzej J. Buras , Robert Fleischer , Jennifer Girrbach , Robert Knegjens

New high precision polarization measurements of the proton elastic form factor ratio in the Q^2 range from 0.3 to 0.7 [GeV/c]^2 have been made. These elastic H(e,e'p) measurements were done in Jefferson Lab's Hall A using 80% longitudinally…

Nuclear Experiment · Physics 2010-08-27 D. W. Higinbotham

We review vibrational and electronic properties of single and a few layer MoS$_2$ relevant to understand their resonant and non-resonant Raman scattering results. In particular, the optical modes and low frequency shear and layer breathing…

Mesoscale and Nanoscale Physics · Physics 2015-02-13 Achintya Bera , A. K. Sood

At modern electron accelerators with highly polarized, intense, high duty factor beams double polarization coincidence experiments became feasible with good statistical accuracy. The strong potential towards the precise determination of…

Nuclear Experiment · Physics 2011-07-19 H. Schmieden
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