scholarly journals Low energy dynamics and the ππ scattering lengths from the NA48/2 experiment at CERN

2007 ◽  
Vol 167 ◽  
pp. 13-17
Author(s):  
Giuseppina Anzivino
Keyword(s):  
Low Energy ◽  
Energy Dynamics ◽  
Scattering Lengths

Low-energy dynamics of the spin-gap magnet at the critical field

2007 ◽  
Vol 310 (2) ◽  
pp. e454-e456
Author(s):  
V.N. Glazkov ◽  
A.I. Smirnov ◽  
A. Kolezhuk ◽  
H. Tanaka ◽  
A. Oosawa
Keyword(s):  
Critical Field ◽  
Low Energy ◽  
Spin Gap ◽  
Energy Dynamics

scholarly journals The kaonic atoms research program at DAΦNE: from SIDDHARTA to SIDDHARTA-2

2018 ◽  
Vol 181 ◽  
pp. 01004 ◽  
Author(s):  
A. Scordo ◽  
A. Amirkhani ◽  
M. Bazzi ◽  
G. Bellotti ◽  
C. Berucci ◽  
...  
Keyword(s):  
Energy Shift ◽  
Theoretical Work ◽  
Research Field ◽  
Low Energy ◽  
Kaonic Hydrogen ◽  
Nucleon Scattering ◽  
X Ray ◽  
Kaonic Atoms ◽  
Kaonic Deuterium ◽  
Scattering Lengths

The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms, in which one electron is replaced by a negatively charged kaon, is a unique tool to provide precise information on this interaction; the energy shift and the broadening of the low-lying states of such atoms, induced by the kaon-nucleus hadronic interaction, can be determined with high precision from the atomic X-ray spectroscopy, and this experimental method provides unique information to understand the low energy kaon-nucleus interaction at the production threshold. The lightest atomic systems, like the kaonic hydrogen and the kaonic deuterium deliver, in a model-independent way, the isospin-dependent kaon-nucleon scattering lengths. The most precise kaonic hydrogen measurement to-date, together with an exploratory measurement of kaonic deuterium, were carried out in 2009 by the SIDDHARTA collaboration at the DAΦNE electron-positron collider of LNF-INFN, combining the excellent quality kaon beam delivered by the collider with new experimental techniques, as fast and very precise X-ray detectors, like the Silicon Drift Detectors. The SIDDHARTA results triggered new theoretical work, which achieved major progress in the understanding of the low-energy strong interaction with strangeness reflected by the antikaon-nucleon scattering lengths calculated with the antikaon-proton amplitudes constrained by the SIDDHARTA data. The most important open question is the experimental determination of the hadronic energy shift and width of kaonic deuterium; presently, a major upgrade of the setup, SIDDHARTA-2, is being realized to reach this goal. In this paper, the results obtained in 2009 and the proposed SIDDHARTA-2 upgrades are presented.

scholarly journals The low energy dynamics of non-BPS branes

2000 ◽  
Author(s):  
Neil Lambert ◽  
I. Sachs
Keyword(s):  
Low Energy ◽  
Energy Dynamics

scholarly journals Low-energy dynamics of N = 2 supersymmetric monopoles

1994 ◽  
Vol 411 (2-3) ◽  
pp. 443-460 ◽  
Author(s):  
Jerome P. Gauntlett
Keyword(s):  
Low Energy ◽  
Energy Dynamics

scholarly journals MATRIX σ-MODELS FOR MULTI D-BRANE DYNAMICS

1998 ◽  
Vol 13 (11) ◽  
pp. 829-842 ◽  
Author(s):  
FEDELE LIZZI ◽  
NICK E. MAVROMATOS ◽  
RICHARD J. SZABO
Keyword(s):  
Field Theory ◽  
Quantum Dynamics ◽  
Open String ◽  
Effective Field ◽  
Low Energy ◽  
Target Space ◽  
Energy Dynamics ◽  
Space Action ◽  
Collective Coordinate ◽  
Genus Expansion

We describe a dynamical worldsheet origin for the Lagrangian describing the low-energy dynamics of a system of parallel D-branes. We show how matrix-valued collective coordinate fields for the D-branes naturally arise as couplings of a worldsheet σ-model, and that the quantum dynamics require that these couplings be mutually noncommutative. We show that the low-energy effective action for the σ-model couplings describes the propagation of an open string in the background of the multiple D-brane configuration, in which all string interactions between the constituent branes are integrated out and the genus expansion is taken into account, with a matrix-valued coupling. The effective field theory is governed by the non-Abelian Born–Infeld target space action which leads to the standard one for D-brane field theory.

scholarly journals Induced Light-Quark Yukawa Couplings as a Probe of Low-Energy Dynamics in QCD

1996 ◽  
Vol 96 (4) ◽  
pp. 781-786 ◽  
Author(s):  
M. R. Ahmady ◽  
V. Elias ◽  
A. H. Fariborz ◽  
R. R. Mendel
Keyword(s):  
Light Quark ◽  
Low Energy ◽  
Yukawa Couplings ◽  
Energy Dynamics
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