Supersymmetry anomaly in the superconformal Wess-Zumino model

نویسندگان

چکیده

A bstract We present a comprehensive analysis of supersymmetry anomalies in the free and massless Wess-Zumino (WZ) model perturbation theory. At classical level possesses $$ \mathcal{N} N = 1 superconformal symmetry, which is partially broken by quantum anomalies. The form part symmetry they break depend on multiplet conserved currents used. It was previously shown that R-symmetry anomaly conformal current induces an Q-supersymmetry, appears first 4-point functions. Here we confirm this result explicit 1-loop computation using supersymmetric Pauli-Villars regulator. does not exist regulated theory because regulator breaks invariance, S-supersymmetry explicitly. minimal massive Ferrara-Zumino (FZ) one preserved specific field dependent combination Q- S- multiplet. While non anomalous, original S-supersymmetries are explicitly finite contact terms, both renormalized theories. for may be obtained from FZ set local counterterms eliminate breaking, thus restoring invariance up to However, necessarily renders as manifest starting at functions currents. paper contains detailed discussion number issues subtleties related Ward identities useful wider context.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Finite-Temperature Supersymmetry: The Wess-Zumino Model

We investigate the breakdown of supersymmetry at finite temperature. While it has been proven that temperature always breaks supersymmetry, the nature of this breaking is less clear. On the one hand, a study of the Ward-Takahashi identities suggests a spontaneous breakdown of supersymmetry without the existence of a Goldstino, while on the other hand it has been shown that in any supersymmetric...

متن کامل

Composite Operators, Supersymmetry Anomalies and Supersymmetry Breaking in the Wess-Zumino Model

A possible mechanism for supersymmetry breaking is that it is broken by a host of supersymmetry anomalies that occur in composite operators. These anomalies are well hidden. This paper explains where they may be found. Using a source φα to absorb the free spinor index, it is shown that the simplest, potentially anomalous, composite spinor operator has the form: A (0) φ = ∫ dx φf j i { Γ i AjCα ...

متن کامل

Wess-Zumino model in superspace

In this letter we use the spurion field approach adopted in hep-th/0307099 in order to show that by adding F and F 2 terms to the original lagrangian, the N = 1 2 Wess-Zumino model is renormalizable to all orders in perturbation theory. We reformulate in superspace language the proof given in the recent work hep-th/0307165 in terms of component fields. PACS: 03.70.+k, 11.15.-q, 11.10.-z, 11.30....

متن کامل

Wess-Zumino model is renormalizable

The Wess-Zumino model on N = 1 2 nonanticommutative superspace, which contains the dimension-6 term F , is shown to be renormalizable to all orders in perturbation theory, upon adding F and F 2 terms to the original Lagrangian. Our result generalizes the recent work hep-th/0307099, which proved renormalizability up to two loops.

متن کامل

Measuring the Wess-Zumino anomaly in tau decays.

We propose to measure the Wess-Zumino anomaly contribution by considering angular distributions in the decays τ → ντηππ, τ → ντKπK and τ → ντKππ. Radial excitations of the K, which cannot be seen in e + e, should be observed in the Kππ decay channel.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of High Energy Physics

سال: 2021

ISSN: ['1127-2236', '1126-6708', '1029-8479']

DOI: https://doi.org/10.1007/jhep02(2021)209