117359670
Study of the backgrounds for the search for proton decay to 10^35 y at the wipp site with the lanndd detector
We briefly describe the LANNDD 70-kT liquid argon TPC proposal for the WIPP underground facility at Carlsbad, New Mexico. We, then, identify the key backgrounds for the search for p -> K+ nu_bar to 10^35 years lifetime. The most serious non-neutrino background is due to high-energy neutrons producing strange particles in the detector. We show that this can be reduced to an acceptable level by appropriate fiducial volume cuts.
126044349
The Study of a Li Lens System as a Final Cooler for a Muon Collider
14552682
Probing large extra dimensions with spin configuration of top quark pair production at the JLC
We explore signatures of large extra dimensions with a polarized electron/positrn beam at the Joint Linear Collider (JLC). We point out that spin informations can be useful to study indirect signals for large extra dimensions due to spin-2 nature of Kaluza-Klein gravitons. The spin configurations of the top quark pair production at e + e and γγ collisions provide an unique testing ground to search for effects of the large extra dimensions. Especially we show the forward-backward ~
14888186
BPS D0-D6 branes in supergravity
We analyse 1/2 BPS IIA Dp-brane supergravity solutions with B-fields and their Killing spinor equations. Via probe analysis, we rederive the supersymmetry conditions for D0-Dp with B-fields. In the case of D6 with B-fields, the D0-probe sees a multi-centred BPS configuration where the B-fields give the location of a wall of marginal stability. Finally we go beyond the probe approximation and construct a 1/8 BPS supergravity solution for a fully back-reacted D0-D6 with B-fields.
118565514
Holographic monopole catalysis of baryon decay
We study how monopole catalysis of baryon decay is realized in holographic QCD. Physics of monopole catalysis becomes much simpler in holographic description as it occurs due to the violation of the Bianchi identity for the 5D gauge symmetry when magnetic monopole is present. In holographic QCD we find a unified picture of the baryon number violation under magnetic monopole or electroweak sphaleron, giving a new mechanism of baryon number violation. We also embed our set-up in the string theory model by Sakai and Sugimoto.
14514990
1/16-BPS black holes and giant gravitons in the AdS5 × S5 Space
We explore 1/16-BPS objects of type IIB string theory in AdS5 ? S5. First, we consider supersymmetric AdS5 black holes, which should be 1/16-BPS and have a characteristic that not all physical charges are independent. We point out that the Bekenstein-Hawking entropy of these black holes admits a remarkably simple expression in terms of (dependent) physical charges, which suggests its microscopic origin via certain Cardy or Hardy-Ramanujan formula. We also note that there is an upper bound for the angular momenta given by the electric charges. Second, we construct a class of 1/16-BPS giant graviton solutions in AdS5 ? S5 and explore their properties. The solutions are given by the intersections of AdS5 ? S5 and complex 3 dimensional holomorphic hyperspaces in 1+5, the latter being the zero loci of three holomorphic functions which are homogeneous with suitable weights on coordinates. We investigate examples of giant gravitons, including their degenerations to tensionless strings.
7028086
Nahm Data and the Mass of 1/4-BPS States
The mass of $\frac{1}{4}$-BPS dyonic configurations in N=4 $D=4$ supersymmetric Yang-Mills theories is calculated within the Nahm formulation. The SU(3) example, with two massive monopoles and one massless monopole, is considered in detail. In this case, the massless monopole is attracted to the massive monopoles by a linear potential.