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- M . B . Voloshin
- 2001

It is argued that the cross section for production of large black holes, for which a semiclassical description is applicable, cannot be given by the geometric area of the black hole horizon, as claimed recently in the literature. Rather the production cross section in a few-particle collision is suppressed by at least a factor exp(−IE) with IE being the… (More)

- Sergei I. Blinnikov, Alexander D. Dolgov, L . B . Okun, M . B . Voloshin
- 1995

Consequences of possible existence of leptonic photon are considered for a range of values of leptonic charge. In the case of a strong Coulomb-like leptonic repulsion between electrons the existence of ordinary condensed matter is impossible: antineutrinos cannot neutralize this destructive repulsion. The upper limit of leptonic charge is inferred from the… (More)

- M . B . Voloshin
- 1992

It is shown that the technique recently suggested by Lowell Brown for summing the tree graphs at threshold can be extended to calculate the loop effects. Explicit result is derived for the sum of one-loop graphs for the amplitude of threshold production of n on-mass-shell particles by one virtual in the unbroken λφ theory. It is also found that the… (More)

- M . B . Voloshin
- 1992

Propagation of particles with emission of arbitrary number of identical bosons all being at rest is considered. It is shown that in certain models the tree-level amplitudes for production of n scalar bosons by two incoming particles are all equal to zero at the threshold starting from some small number n. In particular this nullification occurs for… (More)

- M . B . Voloshin
- Physical review letters
- 2010

The scattering of a neutrino on atomic electrons is considered in the situation where the energy transferred to the electrons is comparable to the characteristic atomic energies, as relevant to the current experimental search for the neutrino magnetic moment. The process is induced by the standard electroweak interaction as well as by the possible neutrino… (More)

- M . B . Voloshin
- 1994

The current theoretical understanding of processes involving many weakly interacting bosons in the Standard Model and in model theories is discussed. In particular, such processes are associated with the baryon and lepton number violation in the Standard Model. The most interesting domain where the multiplicity of bosons is larger than the inverse of small… (More)

- M . B . Voloshin
- 2000

The weak decays Ξb → Λb π and Ξc → Λc π, in which the heavy quark is not destroyed, are discussed. The branching fractions for these decays, corresponding to an absolute rate of order 0.01 ps, should be at a one percent level for the b hyperons and at a (few) per mill level for Ξc, possibly making feasible their experimental study in future. It is shown,… (More)

- M . B . Voloshin
- 1996

It is shown that the inclusive rate of the rare weak radiative decays B → Xs γ contains a nonperturbative correction, whose ‘short distance’ scale is set by m−1 c rather than by m b . This correction is expressed through the chromomagnetic interaction of the b quark inside the B meson and the relative magnitude of the effect is determined by the ratio 〈B|b̄… (More)

We discuss the possibility that production of final states with bottomonium and light mesons at the peak Υ(6S) in the ee annihilation at approximately 11.00GeV is in fact due to a triangular singularity at the threshold of the heavy meson pair production B1(5721)B̄ + c.c. through the process e e → B1(5721)B̄ → Zb(10610)π. The presence of the hidden-bottom… (More)

- M . B . Voloshin
- 2001

The response to a magnetic flux is considered of the vacuum state of charged Dirac fermions interacting with a domain wall made of a neutral spinless field in (3+1) dimensions with the fermion mass having a phase variation across the wall. It is pointed out that due to simple C parity arguments the spontaneous magnetization for this system is necessarily… (More)