Author Question: The decay is not possible because (Read 839 times)

TFauchery · **on:** Aug 10, 2020

Question 1

The attractive force between protons and neutrons in the nucleus is brought about by the exchange of a virtual pi-meson (m_π = 140 MeV/c²). Estimate the longest time a virtual π⁰ can exist, in accordance with the uncertainty principle

. (1 eV = 1.6 × 10⁻¹⁹ J.)

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2.4 × 10⁻²⁴ s

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6.9 × 10⁻²⁷ s

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3.3 × 10⁻¹⁸ s

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2.4 × 10⁻²¹ s

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1.6 × 10⁻¹⁹ s

Question 2

The decay

is not possible because

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L_e is not conserved.

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L_μ is not conserved.

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quark number is not conserved.

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all of the above are not conserved.

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only L_e and L_μ are not conserved.

stallen · **Reply #1 on:** Aug 10, 2020

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

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