Measurements of $$ {K}_S^0 $$-$$ {K}_L^0 $$ asymmetries in the decays $$ {\Lambda}_c^{+}\to p{K}_{L,S}^0 $$, $$ p{K}_{L,S}^0{\pi}^{+}{\pi}^{-} $$ and $$ p{K}_{L,S}^0{\pi}^0 $$

Abstract <p>Usinge⁺e⁻annihilation data sets corresponding to an integrated luminosity of 4.5 fb⁻¹, collected with the BESIII detector at center-of-mass energies between 4.600 and 4.699 GeV, we report the first measurements of the absolute branching fractions$$ \mathcal{B}\left({\Lambda}_c^{+}\to p{K}_L^0\right) $$ <math> <mi>B</mi> <mfenced> <mrow> <msubsup> <mi>Λ</mi> <mi>c</mi> <mo>+</mo> </msubsup> <mo>→</mo> <mi>p</mi> <msubsup> <mi>K</mi> <mi>L</mi> <mn>0</mn> </msubsup> </mrow> </mfenced> </math> = (1.67±0.06±0.04)%,$$ \mathcal{B}\left({\Lambda}_c^{+}\to p{K}_L^0{\pi}^{+}{\pi}^{-}\right) $$ <math> <mi>B</mi> <mfenced> <mrow> <msubsup> <mi>Λ</mi> <mi>c</mi> <mo>+</mo> </msubsup> <mo>→</mo> <mi>p</mi> <msubsup> <mi>K</mi> <mi>L</mi> <mn>0</mn> </msubsup> <msup><mi>π</mi><mo>+</mo></msup> <msup><mi>π</mi><mo>−</mo></msup> </mrow> </mfenced> </math> = (1.69±0.10±0.05)%, and$$ \mathcal{B}\left({\Lambda}_c^{+}\to p{K}_L^0{\pi}^0\right) $$ <math> <mi>B</mi> <mfenced> <mrow> <msubsup> <mi>Λ</mi> <mi>c</mi> <mo>+</mo> </msubsup> <mo>→</mo> <mi>p</mi> <msubsup> <mi>K</mi> <mi>L</mi> <mn>0</mn> </msubsup> <msup><mi>π</mi><mn>0</mn></msup> </mrow> </mfenced> </math> = (2.02±0.13±0.05)%, where the first uncertainties are statistical and the second systematic. Combining with the known branching fractions of$$ {\Lambda}_c^{+}\to p{K}_S^0 $$ <math> <msubsup> <mi>Λ</mi> <mi>c</mi> <mo>+</mo> </msubsup><mo>→</mo><mi>p</mi><msubsup> <mi>K</mi> <mi>S</mi> <mn>0</mn> </msubsup> </math> ,$$ {\Lambda}_c^{+}\to p{K}_S^0{\pi}^{+}{\pi}^{-} $$ <math> <msubsup> <mi>Λ</mi> <mi>c</mi> <mo>+</mo> </msubsup><mo>→</mo><mi>p</mi><msubsup> <mi>K</mi> <mi>S</mi> <mn>0</mn> </msubsup><msup><mi>π</mi><mo>+</mo></msup><msup><mi>π</mi><mo>−</mo></msup> </math> , and$$ {\Lambda}_c^{+}\to p{K}_S^0{\pi}^0 $$ <math> <msubsup> <mi>Λ</mi> <mi>c</mi> <mo>+</mo> </msubsup><mo>→</mo><mi>p</mi><msubsup> <mi>K</mi> <mi>S</mi> <mn>0</mn> </ms. Authors: Ablikim, M.; Achasov, M.; Adlarson, P.; Afedulidis, O.; Ai, X.. DOE Contract: FG02-05ER41374. Subjects: Physics