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In gauge theories like the standard model, the electric charges of the fermions can be heavily constrained from the classical structure of the theory and from the cancellation of anomalies. There is however mounting evidence suggesting that…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. P. Bowes , R. Foot , R. R. Volkas

Baryon number conservation is not guaranteed by any fundamental symmetry within the Standard Model, and therefore has been a subject of experimental and theoretical scrutiny for decades. So far, no evidence for baryon number violation has…

For the periodic sphaleron potential in the electroweak theory, we find the one-dimensional time-independent Schr\"{o}dinger equation with the Chern-Simons number as the coordinate, construct the Bloch wave function and determine the…

High Energy Physics - Theory · Physics 2015-08-11 S. -H. Henry Tye , Sam S. C. Wong

There exist a number of models in the literature in which the weak interactions are derived from a chiral gauge theory based on a larger group than SU(2)_L x U(1)_Y. Such theories can be constructed so as to be anomaly-free and consistent…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. E. Morrissey , T. M. P. Tait , C. E. M. Wagner

We consider the string breaking phenomenon within effective string models which purport to mimic QCD with two light flavors, with a special attention to baryon modes. We make some estimates of the string breaking distances at zero and…

High Energy Physics - Phenomenology · Physics 2020-05-13 Oleg Andreev

In the following work we consider the possibility of explaining the observed baryon number asymmetry in the universe from simple baryon number violating modifications, involving massive scalar bosons, to the Standard Model. In these cases…

High Energy Physics - Phenomenology · Physics 2009-10-30 J. P. Bowes , R. R. Volkas

Operator nucleon vertices are constructed in composite superconformal string model. Splitting of baryon Regge trajectories with the same quantum numbers but with opposite parity is provided by inclusion of simple additional components to…

High Energy Physics - Theory · Physics 2014-03-04 V. A. Kudryavtsev

Recent results from the H1 experiment [1] have confirmed the existence of a substantial baryon asymmetry of the proton sea at small $x$ with magnitude predicted in hep-ph/9607486. This is a strong support for the idea [3] that baryon number…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. Z. Kopeliovich , B. Povh

The baryon density which may be produced during the electroweak phase transition in supersymmetric models is computed, taking into account the previously neglected effects of transport, strong and weak anomalous fermion number violation,…

High Energy Physics - Phenomenology · Physics 2009-10-28 Patrick Huet , Ann E. Nelson

The correlation between baryon number and strangeness elucidates the nature of strongly interacting matter, such as that formed transiently in high-energy nuclear collisions. This diagnostic can be extracted theoretically from lattice QCD…

Nuclear Theory · Physics 2009-02-05 V. Koch , A. Majumder , J. Randrup

The session on precision studies of electroweak interactions is summarized. The contributions address the bilinear, trilinear, quartic as well as heavy-quark interactions of the electroweak gauge bosons. This makes up a picture of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 W. Kilian

This paper presents work done in collaboration with E. Farhi, J. Goldstone, and A. Lue which is described in full in Ref. [1]. We consider a variant of the standard electroweak theory in which the Higgs sector has been modified so that…

High Energy Physics - Phenomenology · Physics 2007-05-23 Krishna Rajagopal

The correction to the string junction three-quark potential in a baryon due to the proper moment of inertia of the QCD string is calculated. The magnitudes of the string corrections in P-wave heavy baryons are estimated.

High Energy Physics - Phenomenology · Physics 2011-04-27 O. N. Driga , I. M. Narodetskii , A. I. Veselov

The vortex solution (Z-string) of the electroweak interactions can be interpreted as the 2-dimensional sphaleron at the top of a non-contractible sphere. The same holds for another type of solution, the W-string.

High Energy Physics - Phenomenology · Physics 2009-10-28 F. R. Klinkhamer , P. Olesen

We briefly review the limits on new interactions implied by electroweak precision data. Special attention is payed to the bounds on the Higgs boson mass. We also comment on the required cancellation among the new contributions to precisely…

High Energy Physics - Phenomenology · Physics 2015-05-28 F. del Aguila , J. de Blas

Net-baryon, net-charge and net-strangeness number fluctuations in high energy heavy-ion collisions are discussed within the framework of a hadron resonance gas (HRG) model. Ratios of the conserved number susceptibilities calculated in HRG…

Nuclear Experiment · Physics 2015-06-15 P. Garg , D. K. Mishra , P. K. Netrakanti , B. Mohanty , A. K. Mohanty , B. K. Singh , N. Xu

We constrain the size of R-parity violating couplings using precision electroweak data.

High Energy Physics - Phenomenology · Physics 2007-05-23 Tatsu Takeuchi , Oleg Lebedev , Will Loinaz

We perform an analysis of the behaviour of the electroweak phase transition in the Minimal Supersymmetric Standard Model, in the presence of light stops. We show that, in previously unexplored regions of parameter space, the order parameter…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Carena , M. Quiros , C. E. M. Wagner

I review the mechanism of electroweak baryogenesis within the framework of a string motivated supersymmetric extension of the Standard Model with large flavor-independent CP-violating phases. Possible implications for the Higgs sector are…

High Energy Physics - Phenomenology · Physics 2016-11-03 Michal Brhlik

Within the Standard Model Effective Field Theory framework, we set indirect constraints on top quark operators that violate baryon number by one unit above the TeV scale. We find that these constraints are typically many orders of magnitude…

High Energy Physics - Phenomenology · Physics 2025-07-29 Hector Gisbert , Antonio Rodríguez-Sánchez , Luiz Vale Silva