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Nucleon decay and n?nˉ oscillations in a left-right symmetric model with large extra dimensions

机译:核子衰减和nΔnˉ振荡,左右尺寸大的左右尺寸

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We study baryon-number-violating processes, including proton and bound neutron decays and n ? n ˉ oscillations, in a left-right-symmetric (LRS) model in which quarks and leptons have localized wave functions in extra dimensions. In this model we show that, while one can easily suppress baryon-number-violating nucleon decays well below experimental bounds, this does not suppress n ? n ˉ transitions, which may occur at levels comparable to current limits. This is qualitatively similar to what was found in an extra-dimensional model with a Standard-Model low-energy effective field theory (SMEFT). We show that experimental data imply a lower limit on the mass scale M n n ˉ characterizing the physics responsible for n ? n ˉ oscillations in the LRS model that is significantly higher than in the extra-dimensional model using a SMEFT and explain the reason for this. Our results provide further motivation for new experiments to search for n ? n ˉ oscillations.
机译:我们研究了违反了违规的流程,包括质子和结合中子衰变和n? nˉ振荡,在左右对称(LRS)模型中,其中夸克和Leptons具有额外尺寸的局部波函数。 在这个模型中,我们展示了,虽然可以容易地抑制突出的脊髓号核这些腐蚀良好的实验界限,但这不会抑制n? nˉ过渡,这可能发生在与电流限制相当的级别。 这与具有标准模型低能量有效场理论(SMEFT)的立体模型中发现的内容具有定性类似。 我们表明实验数据意味着质量标度的下限M n n n n n n n n n n n n n = NˉLRS模型中的振荡,使用SMEFT显着高于立体模型,并解释了这个原因。 我们的结果为新实验提供了进一步的动机来搜索n? nˉ振荡。

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