Physical sciences topic list of research papers
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Determination of |Vub| from exclusive baryonic B decays
Abstract We use the exclusive baryonic B decays to determine the Cabibbo–Kobayashi–Maskawa (CKM) matrix element V ...
2016 / Y.K. Hsiao, C.Q. Geng -
Effect of CP violation in the singlet-doublet dark matter model
Abstract We revisit the singlet-doublet dark matter model with a special emphasis on the effect of CP violation on the dark matter phenomenology. The CP violation in the dark sector induces a pseudoscalar interaction of a fermionic dark matter...
2017 / Tomohiro Abe -
Are eikonal quasinormal modes linked to the unstable circular null geodesics?
Abstract In Cardoso et al. [6] it was claimed that quasinormal modes which any stationary, spherically symmetric and asymptotically flat black hole emits in the eikonal regime are determined by the parameters of the circular null geodesic: the real...
2017 / R.A. Konoplya, Z. Stuchlík -
Gravitational instabilities of the cosmic neutrino background with non-zero lepton number
Abstract We argue that a cosmic neutrino background that carries non-zero lepton charge develops gravitational instabilities. Fundamentally, these instabilities are related to the mixed gravity-lepton number anomaly. We have explicitly computed the...
2017 / Neil D. Barrie, Archil Kobakhidze -
Search for Neutrino-less Double Beta Decay with CANDLES
Abstract CANDLES is the project to search for neutrino-less double beta decay (0νββ) of 48Ca. The observation of 0νββ will prove existence of a massive Majorana neutrino. For the 0νββ measurement, we need a low background condition because of a low...
2015 / S. Umehara, T. Kishimoto, M. Nomachi, S. Ajimura, T. Iida, et al. -
Anisotropies of gravitational wave backgrounds: A line of sight approach
Abstract In the weak field regime, gravitational waves can be considered as being made up of collisionless, relativistic tensor modes that travel along null geodesics of the perturbed background metric. We work in this geometric optics picture to...
2017 / Carlo R. Contaldi -
Three-body bound states with zero-range interaction in the Bethe–Salpeter approach
Abstract The Bethe–Salpeter equation for three bosons with zero-range interaction is solved for the first time. For comparison the light-front equation is also solved. The input is the two-body scattering length and the outputs are the three-body...
2017 / E. Ydrefors, J.H. Alvarenga Nogueira, V. Gigante, T. Frederico, V.A. Karmanov -
Fusion of 40Ca + 96Zr revisited: Transfer couplings and hindrance far below the barrier
Abstract The sub-barrier fusion excitation function of 40Ca + 96Zr has been measured down to cross sections ≃2.4 μb, i.e. two orders of magnitude smaller than obtained in a previous experiment, where the sub-barrier fusion of this system was found...
2014 / A.M. Stefanini, G. Montagnoli, H. Esbensen, L. Corradi, S. Courtin, et al. -
Search for heavy gauge W ′ bosons in events with an energetic lepton and large missing transverse momentum at s = 13 TeV
Abstract A search is presented for W ′ ...
2017 / V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, E. Asilar, et al. -
QCD predictions for the azimuthal asymmetry in charm leptoproduction for the COMPASS kinematics
Abstract We present the QCD predictions for the azimuthal cos 2 φ asymmetry in charm leptoproduction for the kinematics of the...
2017 / A.V. Efremov, N.Ya. Ivanov, O.V. Teryaev -
An asymptotically safe solution to the U(1) triviality problem
Abstract We explore whether quantum gravity effects within the asymptotic safety paradigm can provide a predictive ultraviolet completion for Abelian gauge theories. We evaluate the effect of quantum gravity fluctuations on the running couplings in...
2017 / Nicolai Christiansen, Astrid Eichhorn -
Long-lived K isomer and enhanced γ vibration in the neutron-rich nucleus 172Dy: Collectivity beyond double midshell
Abstract The level structure of 172Dy has been investigated for the first time by means of decay spectroscopy following in-flight fission of a 238U beam. A long-lived isomeric state with ...
2016 / H. Watanabe, G.X. Zhang, K. Yoshida, P.M. Walker, J.J. Liu, et al. -
Dark matter and global symmetries
Abstract General considerations in general relativity and quantum mechanics are known to potentially rule out continuous global symmetries in the context of any consistent theory of quantum gravity. Assuming the validity of such considerations, we...
2016 / Yann Mambrini, Stefano Profumo, Farinaldo S. Queiroz -
Deciphering the CP nature of the 750 GeV resonance
Abstract The recently observed excess in diphoton events at around 750 GeV can be satisfactorily described in terms of a new spin-0 real singlet with effective interactions to the gauge bosons. In this letter we first review the current constraints...
2016 / Mikael Chala, Christophe Grojean, Marc Riembau, Thibaud Vantalon -
The third order correction on Hawking radiation and entropy conservation during black hole evaporation process
Abstract Using Parikh–Wilczek tunneling framework, we calculate the tunneling rate from a Schwarzschild black hole under the third order WKB approximation, and then obtain the expressions for emission spectrum and black hole entropy to the third...
2016 / Hao-Peng Yan, Wen-Biao Liu -
Microwave frequency modulation to enhance Dissolution Dynamic Nuclear Polarization
Abstract Hyperpolarization by Dissolution Dynamic Nuclear Polarization is usually achieved by monochromatic microwave irradiation of the ESR spectrum of free radicals embedded in glasses at 1.2K and 3.35T. Hovav et al. (2014) have recently shown...
2014 / Aurélien Bornet, Jonas Milani, Basile Vuichoud, Angel J. Perez Linde, Geoffrey Bodenhausen, et al. -
One-neutron knockout reaction of 17C on a hydrogen target at 70 MeV/nucleon
Abstract First experimental evidence of the population of the first 2 − ...
2013 / Y. Satou, J.W. Hwang, S. Kim, K. Tshoo, S. Choi, et al. -
The B→K⁎ form factors on the lattice
Abstract The extraction of the B → K ...
2016 / Andria Agadjanov, Véronique Bernard, Ulf-G. Meißner, Akaki Rusetsky -
Measurement of the production of high- p T electrons from heavy-flavour hadron decays in Pb–Pb collisions at s NN = 2.76 TeV
Abstract Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy ...
2017 / J. Adam, D. Adamová, M.M. Aggarwal, G. Aglieri Rinella, M. Agnello, et al. -
Enhancement of sound by soft reflections in exponentially chirped crystals2014 / A. Cebrecos, R. Picó, V. J. Sánchez-Morcillo, K. Staliunas, V. Romero-García, et al.