Model-independent limits for anomalous triple gauge bosons W+W-γ couplings at the CLIC
In this study, we investigate the potential of the γ γ → W + W - , e + γ → e + γ ∗ γ → e + W - W + and e + e - → e + γ ∗ γ ∗ e - → e + W - W + e - processes at the Compact Linear Collider (CLIC) operating in γ γ , γ ∗ γ and γ ∗ γ ∗ modes to probe the anomalous triple gauge bosons W + W - γ couplings...
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Veröffentlicht in: | European physical journal plus 2021-06, Vol.136 (6), p.697, Article 697 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
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Zusammenfassung: | In this study, we investigate the potential of the
γ
γ
→
W
+
W
-
,
e
+
γ
→
e
+
γ
∗
γ
→
e
+
W
-
W
+
and
e
+
e
-
→
e
+
γ
∗
γ
∗
e
-
→
e
+
W
-
W
+
e
-
processes at the Compact Linear Collider (CLIC) operating in
γ
γ
,
γ
∗
γ
and
γ
∗
γ
∗
modes to probe the anomalous triple gauge bosons
W
+
W
-
γ
couplings. To identify the
W
+
W
-
production in the final state, we consider the leptonic, semi-leptonic and hadronic decays channels. Based on future CLIC data, we assume
L
=
1
ab
-
1
@
s
=
0.380
TeV
,
L
=
2.5
ab
-
1
@
s
=
1.5
TeV
,
L
=
5
ab
-
1
@
s
=
3
TeV
and
δ
sys
=
0
%
,
5
%
,
10
%
,
15
%
for our study. Using these data, the strongest limits expected with the
γ
γ
→
W
+
W
-
,
e
+
γ
→
e
+
γ
∗
γ
→
e
+
W
-
W
+
and
e
+
e
-
→
e
+
γ
∗
γ
∗
e
-
→
e
+
W
-
W
+
e
-
processes on the anomalous
Δ
κ
γ
and
λ
γ
couplings with
δ
sys
=
0
%
at
95
%
C.L. are:
Δ
κ
γ
=
±
0.00007
,
λ
γ
=
[
-
0.00004
,
0.00102
]
,
Δ
κ
γ
=
±
0.00015
,
λ
γ
=
[
-
0.00013
,
0.00340
]
and
Δ
κ
γ
=
[
-
0.00048
,
0.00049
]
,
λ
γ
=
[
-
0.00048
,
0.00782
]
. The bounds for
Δ
κ
γ
and
λ
γ
with
δ
sys
=
5
%
,
10
%
,
15
%
are weaker with respect to the bounds obtained with
δ
sys
=
0
%
. These limits show potential sensitivity when compared with those from LHC and HL-LHC data and can be a very promising option to probe the anomalous
W
+
W
-
γ
couplings at the CLIC. In addition, a prominent advantage of these processes is that they isolate anomalous
W
+
W
-
γ
couplings, thus allowing the study of
W
+
W
-
γ
couplings independently from
W
+
W
-
Z
. |
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ISSN: | 2190-5444 2190-5444 |
DOI: | 10.1140/epjp/s13360-021-01684-6 |