Skip to main content
Notice removed Draw attention by CommunityBot
Bounty Ended with no winning answer by CommunityBot
Tweeted twitter.com/#!/StackPhysics/status/475447866807558144
added 16 characters in body
Source Link
JeffDror
  • 9k
  • 2
  • 30
  • 73

Parametrizing Spurions in Anomaly Mediated Supersymmetry Breaking

When studying supersymmetry breaking, people often use a spurion chiral superfield to study the soft SUSY breaking terms which enter the Lagrangian ($X=\theta^2 F$). Since we let the spurion couple to every field and assume that the messengers are at the Planck scale this is used to parameterizeparametrize gravity mediated SUSY breaking. For example we can get scalar masses through, \begin{equation} \int d^4\theta \frac{X^\dagger X}{M^2} Q^\dagger Q \end{equation}

Recently I've seen papers using anomaly mediated SUSY breaking in their theories instead (one such paper can be found here). Is there a way to parametrize the SUSY breaking terms in the anomaly medaited scheme analogously to the typical gravity mediated scenariosscenario?

Parametrizing Anomaly Mediated Supersymmetry Breaking

When studying supersymmetry breaking people often use a spurion chiral superfield to study the soft SUSY breaking terms which enter the Lagrangian. Since we let the spurion couple to every field and assume that the messengers are at the Planck scale this is used to parameterize gravity mediated SUSY breaking. For example we can get scalar masses through, \begin{equation} \int d^4\theta \frac{X^\dagger X}{M^2} Q^\dagger Q \end{equation}

Recently I've seen papers using anomaly mediated SUSY breaking in their theories instead (one such paper can be found here). Is there a way to parametrize the SUSY breaking terms in the anomaly medaited scheme analogously to the typical gravity mediated scenarios?

Spurions in Anomaly Mediated Supersymmetry Breaking

When studying supersymmetry breaking, people often use a spurion chiral superfield to study the soft SUSY breaking terms which enter the Lagrangian ($X=\theta^2 F$). Since we let the spurion couple to every field and assume that the messengers are at the Planck scale this is used to parametrize gravity mediated SUSY breaking. For example we can get scalar masses through, \begin{equation} \int d^4\theta \frac{X^\dagger X}{M^2} Q^\dagger Q \end{equation}

Recently I've seen papers using anomaly mediated SUSY breaking in their theories instead (one such paper can be found here). Is there a way to parametrize the SUSY breaking terms in the anomaly medaited scheme analogously to the typical gravity mediated scenario?

Notice added Draw attention by JeffDror
Bounty Started worth 100 reputation by JeffDror
Source Link
JeffDror
  • 9k
  • 2
  • 30
  • 73

Parametrizing Anomaly Mediated Supersymmetry Breaking

When studying supersymmetry breaking people often use a spurion chiral superfield to study the soft SUSY breaking terms which enter the Lagrangian. Since we let the spurion couple to every field and assume that the messengers are at the Planck scale this is used to parameterize gravity mediated SUSY breaking. For example we can get scalar masses through, \begin{equation} \int d^4\theta \frac{X^\dagger X}{M^2} Q^\dagger Q \end{equation}

Recently I've seen papers using anomaly mediated SUSY breaking in their theories instead (one such paper can be found here). Is there a way to parametrize the SUSY breaking terms in the anomaly medaited scheme analogously to the typical gravity mediated scenarios?