In the semileptonic decays of heavy mesons and baryons, lepton-mass dependence factors out in quadratic ${\mathrm{cos}}^{2}\ensuremath{\theta}$ coefficient differential $\mathrm{cos}\ensuremath{\theta}$ distribution. We call corresponding normalized convexity parameter. This observation opens path to a test lepton universality meson baryon that is independent form-factor effects. By projecting ...

In this work we study the doubly charmed baryon decays $\Xi_{cc}^{++}\to\Xi_c^{(\prime)+}\pi^+$ within framework of non-relativistic quark model (NRQM). Factorizable amplitudes are expressed in terms transition form factors, while nonfactorizable arising inner $W$-emission evaluated using current algebra and pole baryonic matrix elements axial-vector factors. Nonperturbative parameters then cal...

We study a minimal scenario to realize non-thermal leptogenesis and UV freeze-in of Standard Model (SM) gauge singlet fermionic dark matter (DM) simultaneously, with inflaton field playing non-trivial role in their yields. The renormalizable interactions are restricted the SM fields, two right handed neutrinos (RHN) coupling exclusively RHNs, while DM couples both RHNs only via operators dimens...

Constraints on the Covariant Canonical Gauge Gravity (CCGG) theory from low-redshift cosmology are studied. The formulation extends Einstein's of General Relativity (GR) by a quadratic Riemann-Cartan term in Lagrangian, controlled "deformation" parameter. In Friedman universe this leads to an additional geometrical stress energy and promotes, due necessary presence torsion, cosmological constan...

we denote by $ls[n](t,k,v)$ a large set of $t$-$(v,k,lambda)$ designs of size $n$, which is a partition of all  $k$-subsets ofa $v$-set into $n$ disjoint  $t$-$(v,k,lambda)$ designs and$n={v-t choose k-t}/lambda$.   we use the notation$n(t,v,k,lambda)$ as the maximum possible number of mutuallydisjoint cyclic $t$-$(v,k,lambda)$designs. in this paper we givesome new bounds for $n(2,29,4,3)$ and ...

Cospectrality of two graphs measures the differences between the ordered spectrum of these graphs in various ways. Actually, the origin of this concept came back to Richard Brualdi's problems that are proposed in cite{braldi}: Let $G_n$ and $G'_n$ be two nonisomorphic simple graphs on $n$ vertices with spectra$$lambda_1 geq lambda_2 geq cdots geq lambda_n ;;;text{and};;; lambda'_1 geq lambda'_2...

in this paper, we introduce new classes $sum_{k,p,n}(alpha ,m,lambda ,l,rho )$ and $mathcal{t}_{k,p,n}(alpha ,m,lambda ,l,rho )$ of p-valent meromorphic functions defined by using the extended multiplier transformation operator. we use a strong convolution technique and derive inclusion results. a radius problem and some other interesting properties of these classes are discussed.

In this paper, we study the decomposition of semirings with a semilattice additive reduct. For, we introduce the notion of principal left $k$-radicals $Lambda(a)={x in S | a stackrel{l}{longrightarrow^{infty}} x}$ induced by the transitive closure $stackrel{l}{longrightarrow^{infty}}$ of the relation $stackrel{l}{longrightarrow}$ which induce the equivalence relation $lambda$. Again non-transit...

for any lacunary sequence $theta = (k_{r})$, we define the concepts of $s_{theta}-$limit point and $s_{theta}-$cluster point of a sequence of fuzzy numbers $x = (x_{k})$. we introduce the new sets  $lambda^{f}_{s_{theta}}(x)$, $gamma^{f}_{s_{theta}}(x)$ and prove some inclusion relaions between these and the sets $lambda^{f}_{s}(x)$, $gamma^{f}_{s}(x)$ introduced in ~cite{ayt:slpsfn} by aytar [...